EPA-460/3-73-002-b
June 1974
IN-USE HEAVY DUTY
GASOLINE TRUCK EMISSIONS
PART II, SURVEILLANCE STUDY
OF CONTROL EQUIPPED
HEAVY-DUTY GASOLINE-
POWERED VEHICLES
U.S. ENVIRONMENTAL PROTECTION AGENCY
Office of Air and Waste Management
Office of Mobile Source Air Pollution Control
Certification and Surveillance Division
Ann Arbor, Michigan 48105
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EPA-460/3-73-002-B
IN-USE HEAVY DUTY
GASOLINE TRUCK EMISSIONS
PART II, SURVEILLANCE STUDY
OF CONTROL EQUIPPED HEAVY-DUTY
GASOLINE-POWERED VEHICLES
Prepared by
M.N. Ingalls, K.J. Springer
Southwest Research Institute
8500 Culebra Road
San Antonio, Texas 78284
Contract No. EHS 70-113
EPA Project Officer:
Gordon J. Kennedy
Prepared for
U.S. ENVIRONMENTAL PROTECTION AGENCY
Office of Air and Waste Management
Office of Mobile Source Air Pollution Control
Certification and Surveillance Division
Ann Arbor , Michigan 48105
June 1974
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This report is issued by the Environmental Protection Agency to report
technical data of interest to a limited number of readers. Copies are
available free of charge to Federal employees, current contractors ^d
grantees, and nonprofit organizations - as supplies permit - from the Air
Pollution Technical Information Center, Environmental Protection Agency,
Research Triangle Park, North Carolina 27711; or, for a fee, from the
National Technical Information Service, 5285 Port Royal Road, Spring
field, Virginia 22151.
This report was furnished to the Environmental Protection Agency by
Southwest Research Institute, San Antonio, Texas, in fulfillment of
Contract No. EHS 70-113. The contents of this report are reproduced
herein as received from the Southwest Research Institute. The opin-
ions, findings, and conclusions expressed are those of the author and
not necessarily those of the Environmental Protection Agency. Mention
of company or product names is not to be considered as an endorsement
by the Environmental Protection Agency.
Publication No. EPA-460/3-73-002-b
11
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ABSTRACT
This report covers two and one half years of periodic
exhaust emission tests on a fleet of 1970 and 1971 gasoline -powered
trucks, over 6, 000 Ib gross vehicle weight in use in the
San Antonio, Texas area. The fleet originally numbered 152 trucks,
all of which were part of regular fleets owned by a variety of truck
operators. The fleet owners were instructed to operate and maintain
the trucks furnished for testing in the same manner as the rest of
their fleet. Each truck received up to seven periodic tests for hydro-
carbons, carbon monoxide, and nitric oxide during the 30-month
surveillance period. The exhaust emission test used was a chassis
dynamometer version of the nine-mode Federal test procedure
for heavy-duty gasoline engine emission certification. To correlate
the chassis dynamometer version with the stationary engine dynamo-
meter version, 10 engines were tested on a stationary dynamometer,
installed in their original truck chassis and tested on a chassis dyna-
mometer.
The objectives of the study, to determine the effectiveness of
the 1970 heavy-duty exhaust controls and determine their performance
with time and mileage, were met. The first test on each truck was
performed when it was new or nearly new. The percentage of trucks
below the 1970 Federal standards for hydrocarbons and carbon
monoxide was calculated for this first test round. A statistical analysis
of the periodic tests was performed to determine the effects of time
and mileage accumulation. Effects of timing, idle speed, engine model,
transmission type, number of cylinders, and several other variables
on emissions were also briefly investigated.
111
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FOREWORD
This ^project was originally initiated in June 1970 by the Inspec-
tion and Surveillance Branch, formerly part of the Division of Motor
Vehicle Pollution Control at The Willow Run Airport, Ypsilanti, Michigan.
The engineering effort on which this report is based was accomplished by
Southwest Research Institute, 8500 Culebra Road, San Antonio, Texas
under Contract No. EHS 70-113.
Mr. Karl J. Springer, Manager of Emissions Research Laboratory,
Southwest Research Institute, was the Project Manager for this work. The
principle engineers associated with this project'were Mr. Melvin N. Ingalls
and Mr. Clifford D. Tyree.
The initial laboratory test phase began in June 1970 and was to have
been completed in January 1972. Contract Modification No. 2, dated Jan-
uary 11, 1972, expanded and extended the testing to be done under the
contract. Surveillance inspection tests specified under the modified con-
tract were completed in January 1974.
The Project Officer cognizant of this project was originally Mr.
Charles Domke, Chief, Inspection and Surveillance Branch, Division of
Motor Vehicle Pollution Control, which is now the Surveillance Branch,
Certification and Surveillance Division, Office of Mobile Source Air Pol-
lution Control, Environmental Protection Agency, 2565 Plymouth Road,
Ann Arbor, Michigan 48105. Mr. John White of that office assumed
Project Officer responsibility about midway through the project. Mr.
Gordon Kennedy is presently the Project Officer.
This report completes the second and final phase of a long term
study of exhaust emission characteristics of gasoline powered trucks
above 6, 000 Ib gross vehicle weight. The report of Part I of the study,
entitled "Mass Emissions from Trucks Operated Over a Road Course",
was issued in February 1973 under the identifier number EPA-460/3-73-002A.
This project was identified within Southwest Research Institute as No.
11-2862-001.
IV
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TABLE OF CONTENTS
Page
ABSTRACT iii
FOREWORD iv
LIST OF FIGURES vii
LIST OF TABLES ix
I. INTRODUCTION 1
A. Background 1
B. Scope 2
C. Objective 2
D. Approach 2
E. Project Reviews 3
II. THE TEST FLEET 6
A. Surveillance Fleet 6
B. Engine-to-Chassis Dynamometer Correlation Group 6
IE. TEST PROCEDURES, INSTRUMENTATION, AND FUEL 15
A. Test Procedure 15
B. Test Facility 18
C. Test Equipment and Instrumentation 21
D. Fuel 25
IV. CORRELATION ENGINE TEST RESULTS 27
V. SURVEILLANCE FLEET TEST RESULTS 30
A. Results by Inspection Round 30
B. Results by Odometer Miles 32
VI. ANALYSIS OF SURVEILLANCE FLEET TEST RESULTS 43
A. Effectiveness of Exhaust Emission Controls 43
B. Effects of Time in Service on Emissions 43
C. Effects of Mileage on Emissions 50
D. Effects of Timing and Idle Speed 55
E. Effects of Vehicle Variables 56
F. Effects of Maintenance on Emissions 60
G. Discussion of Analysis 62
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TABLE OF CONTENTS (Con't)
VII. SUMMARY AND CONCLUSIONS
LIST OF REFERENCES 66
APPENDIXES
A. Description of Vehicles Tested
B. Correlation Group Data Summary for Individual Trucks
C. Federal Test Procedure for Exhaust Emission Tests of
Heavy Duty Gasoline Powered Trucks (Excerpted from
November 10, 1970, Federal Register)
D. Results of Surveillance Tests by Inspection Round
E. Plots of Individual Truck Results from Seven Inspections
F. Plots of Emission Level Changes as a Function of Mileage
by Engine Model Group
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LIST OF FIGURES
Figure Page
1 Comparison of Surveillance Fleet to 1970 Factory 9
Sales by GVW Class
2 Examples of Surveillance Trucks 10
3 Examples of Surveillance Trucks 11
4 Examples of Surveillance Trucks 12
5 Correlation Group Engines and Trucks on 14
Test Dynamometer
6 SwRI Emissions Research Laboratory High 19
Bay Area for Gasoline Powered Truck Testing
7 Test Cell No. 3 U. S. Army Fuels and Lubri- 20
cants Laboratory, SwRI
8 Continuous NDIR Sampling/Analysi s /Computer 22
System Used for Nine-Mode FTP Tests
9 Instrumentation and Engine Installation Test Cell 24
No. 3, Army Fuels and Lubricants Laboratory
10 Average Exhaust Emissions from Stationary 29
Engine Dynamometer Tests of Correlation
Group Trucks
11 Exhaust Hydrocarbon Average Emission Levels 33
for the 23 Engine Model Groups Comprising the
Surveillance Fleet. "0" Months through 30 Months
Inspections
12 Exhaust Carbon Monoxide Average Emission 35
Levels for the 23 Engine Model Groups Com-
prising the Surveillance Fleet. "0" Months through
30 Months Inspections
13 Exhaust Corrected Nitric Oxide Average Emission 37
Levels for the 23 Engine Model Groups Comprising
the Surveillance Fleet. "0" Months through 30
Months Inspections
vn
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LIST OF FIGURES (Con't)
Figure Pa§e
14 Hydrocarbon Test Levels for All Sur- 39
veillance Tests as a Function of Odometer
Mileage
15 Carbon Monoxide Test Levels for All Sur- 40
veillance Tests as a Function of Odometer
Mileage
16 Corrected Nitric Oxide Test Levels for All 41
Surveillance Tests as a Function of Odometer
Mileage
17 Cumulative Frequency Distribution of Exhaust 44
Emission Levels for First Round Inspections
(152 trucks)
18 Cumulative Frequency Distribution of Hydro- 46
carbon Exhaust Emissions for all Inspection
Rounds
19 Cumulative Frequency Distribution of Carbon 47
Monoxide Emissions for all Inspection Rounds
20 Cumulative Frequency Distribution of Corrected 43
Nitric Oxide Emissions for all Inspection Rounds
21 Percent of Trucks with Emission Levels Below 49
Federal Standards as a Function of Time
Vlll
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LIST OF TABLES
Table Page
1 Breakdown of Surveillance Fleet by Make and 7
Displacement
2 Comparison of Gasoline Surveillance Fleet 8
Composition to a Fleet Weighted to 1971
Estimated Sales
3 1970 Federal Nine-Mode Constant Speed 16
Procedure for Heavy-Duty Gasoline Trucks
4 Inspection Report of Leaded Premium Motor 26
Gasoline Used for All Tests
5 Summary of Correlation Truck Results, Nine- 28
Mode Heavy-Duty Gasoline Federal Cycle Sta-
tionary-to-Chassis Dynamometer Comparison
6 Average Fleet Emission Levels 31
7 Engine Model Group Emission Trends with 52
Mileage
8 Results of Analysis of Variance 61
IX
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I. INTRODUCTION
(11*
According to the latest statistical information ' , all trucks
comprise about 18 percent (21, 209, 000) of the total vehicles registered
and burn approximately 28 percent of the gasoline consumed in the
United States. From sales data(^), approximately 38 percent of the
gasoline-powered trucks and buses sold are above 6,000 Ib gross
vehicle weight (GVW). Although there is less known about heavy-duty
vehicles .(HDV) than light-duty vehicles (cars) in their role as con-
tributors to the total air pollution problem, the Environmental
Protection Agency (EPA) has sponsored a continuing long-range inves-
tigation of HDV emissions at Southwest Research Institute.
A. Background
This report ,covers 30 months of surveillance inspections of
exhaust emission control equipped 1970-1971 heavy-duty vehicles.
Federal heavy-duty emission standards first became effective
with the 1970 model year. To meet these standards, some form of
emission control device(s)'"' was required. The need of the EPA for
information regarding the effectiveness of these control devices in actual
operation led to the surveillance study covered in this report. As this
project drew heavily on the knowledge and experience gained in previous
heavy-duty projects, a brief review of these projects is presented here.
Southwest Research Institute's Emissions Research Laboratory
has been privileged to have conducted a major portion of the research
with HDVs beginning in June 1967. This first effort was the acquisition
of baseline emissions data from 150 gasoline and LPG fueled spark-
ignited engine-powered trucks and buses using three experimental
road-like chassis dynamometer procedures. Exhaust emissions for
this project were obtained using a special truck version of the constant
volume sampler (CVS) which permitted expression of contaminants on
a mass basis. The results of the survey are contained in the SwRI final
report ' ' which concluded that the three proposed experimental non-
constant speed cycles were not recommended for use in testing emissions
from heavy-duty vehicles powered by spark-ignited engines. The findings
of this study were summarized in AIChE and SAE papers' ' ' which de-
scribed the preparations and baseline data results, respectively.
The second major work in this continuing program compared
hydrocarbon (HC), carbon monoxide (CO), and nitric oxide (NO)
* Superscript numbers in parentheses refer to the List of References
at the end of this report.
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emissions obtained in actual road driving to chassis dynamometer
emissions obtained using the Federal nine-mode constant speed cycle
(FTP) for six trucks of various sizes and makes. Using a CVS, the
current Federal cycle was subjected to a number of modifications to
investigate what improvements might be made to make the Federal
procedure agree more with road operation ' '.
The third in this series of projects, sponsored by the Environ-
mental Protection Agency, was completed in April 1972. The first
phase of this three-phase project was a broad emission characterization
study of four 1969 trucks under a wide variety of engine speeds, power
levels, and both stationary and chassis-operated engines. Emission
rates of hydrocarbons, carbon monoxide, and nitric oxide were expressed
in mass units of grams per minute, per pound of fuel and per bhp-hr. In
addition to the steady-state emission maps, a number of transient accel-
erations and decelerations were studied using a variety of simulated
vehicle inertias. The second phase was a four-vehicle study of the effect
of four different road routes on emission rates. The road routes were
sufficiently different to be distinct, yet were considered representative
of actual truck driving. The final phase was a nine-truck evaluation of an
experimental 23-mode test procedure using both stationary-and chassis-
operated engines. The three phases of this project generated a large
body of data that is summarized in the report' ' and included in some
detail in a number of appendices.
B. Scope
This report covers the 30 months (7 inspection rounds) of
operation of the surveillance fleet. The results discussed in the report
are for the surveillance tests and stationary-to-chassis dynamometer
comparison tests only. The results of work done under parts K and L
of the Modified Scope of Work (CVS tests and Road Route studies) were
covered in a separate report titled "In Use Heavy Duty Gasoline Truck
Emissions, Part I, Mass Emissions from Trucks Operated Over a Road
Course", dated February, 1973, Report No. EPA-460/3-73-002A
C. Objective
The objective of this project was to determine the effectiveness
of exhaust controls on 1970 and 1971 heavy-duty gasoline trucks in the
southwestern portion of the U.S. and to establish their performance versus
operation (time) and mileage accumulation.
D. Approach
To meet the objectives of the project, a group of at least 140 vehicles
were to be inspected periodically measuring exhaust emissions of hydro-
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carbons, (HC), carbon monoxide (CO) and nitric oxide (NO) using a chassis
dynamometer version of the nine-mode engine-dynamometer Federal
Test Procedure (FTP) for gasoline fueled heavy-duty vehicles.
Vehicles in this program were chosen to represent, to the
extent feasible, the total HDV population by make, displacement, and
application. While every effort was made to use new vehicles, it was
recognized that it would be necessary to include some vehicles that
would have accumulated several thousand miles prior to the start of
testing.
Since the official FTP is a stationary engine dynamometer
procedure and the surveillance test used an unofficial chassis dyna-
mometer version of this FTP, a check of the correlation of the results
from the two methods was necessary. A group of 10 trucks were tested
using the nine-mod'e FTP on both chassis and stationary dynamometers
and the results of the two types of tests were compared. In this report,
stationary dynamometer is used synonymously with engine dynamometer
to indicate an engine test stand dynamometer.
E. Project Reviews
During the initial month of the project (July 1970) , several
conferences were held with the Project Officer regarding the extent
of. and date for instrumentation checkout, calibration, and validation.
Such a correlation step was considered important to assure acceptable
test results. The start of laboratory tests was delayed approximately
five weeks by mutual agreement with the Project Officer to permit
calibration and correlation with the EPA (then NAPCA) dynamic cali-
brator. On September 8 and 9, 1970, Mr. Matt Macocha, Mr. Jim
Marzen, and Mr. Tom Lyttle visited the Emissions Research Labora-
tory for the purpose of checking the Laboratory exhaust gas analysis
system against the NAPCA dynamic gas calibrator. The Laboratory
instrument results varied from the dynamic gas calibrator by more
than an acceptable amount. This lack of agreement was subsequently
found to be attributed to the combination of gas chromatagraph proce-
dures in defining standard calibration gases and the use of high order
polynomial equations to define the calibration curves. To facilitate
agreement, on September 24 and 25, 1970, approximately 50 calibra-
tion cylinders were transported to the NAPCA laboratories for
definition of concentration. Upon return of the cylinders to SwRI, new
calibrations of each instrument were performed using the dynamic
gas calibrator on November 2, 1970. These calibrations gave satis-
factory correlation. The difficulties in correlation of the SwRI gas
analysis instruments and the EPA dynamic gas calibrator set back the
start of surveillance tests an additional month.
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The several months delay in starting tests under this program
resulted in 1971 model trucks becoming available. To fulfill the intent
of this project, namely evaluation of emissions with low mileage,
preferably factory new, as-delivered vehicles, clarification of contract
wording was requested of the Project Officer. On November 23, 1970,
approval was given to utilize 1971 model vehicles for purposes of this
project. On December 16, 1970, Mr. Karl Springer, Emissions Research
Laboratory Manager, visited the Project Officer at the EPA's Ypsilanti
Willow Run Laboratory for discussions of the project status and progress.
During the week of July 1971, Mr. M. Macocha of the EPA again
visited the Emissions Research Laboratory to inspect and check the
calibration of the Beckman NDIR instrumentation train. The only item
found worthy of special mention was a small leak in the high level hydro-
carbon system. The leak was located in a Swaglok tubing fitting near a
solenoid valve and affected only the high hydrocarbon part of the system.
The leak was assumed to have been the result of a solenoid inspection
and cleaning several days before. No surveillance trucks had been tested
in the intervening period, so that the leak had no effect on surveillance
results. Some deficiencies in record keeping and data logging were
noted and immediate changes were made by operating and supervisory
personnel to meet the desires of the inspector.
A project review conference was held on February 14 and 15,
1972 at the Emissions Research Laboratory of SwRI. Personnel in
attendance from the EPA were Messrs. Charles Domke and Jim Marzen
of the Division of Certification and Surveillance and Messrs. Jim
Hammerle and David Kircher of the Division of Applied Technology
Mr. Karl Springer, Manager of the Emissions Research Laboratory,
hosted the meeting assisted by members of the Emissions Research Labora-
tory professional staff, including Messrs. John Storment, Clifford Tyree
and Melvin Jngalls. The project work and results to that date were reviewed
and procedures for the work required in the recent contract revision were
discussed. The specific item covered applicable to this part of the project
was a decision to investigate the possibility of a detailed analysis of sur-
veillance data on a percent change in emission level versus mileage
basis and to ascertain cost and effectiveness of this type of analysis.
The equipment and procedures used for the chassis version of the Fed-
eral nine-mode heavy-duty engine-dynamometer test procedure were
observed during an actual surveillance test.
Mr. Tom Bejma of the Surveillance Branch, Division of
Certification and Surveillance, Environmental Protection Agency,
visited the Emissions Laboratory on June 13 and 14, 1972 to re-
view the project, check test and calibration procedures, and discuss
EPA recommendations and requirements for instrumentation calibrations.
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The procedures for both truck testing instrumentation and calibration
were found to be satisfactory. Several recommendations were made
for improvements in instrumentation calibration procedures which were
implemented.
Messrs. John White and Tom Bejma, of EPA, visited the
Emission Research Laboratory at SwRI on August 8 and 9, 1972. The
history and current status of the project was reviewed for Mr. White,
who had been designated as Project Officer for Contract EHS 70-113,
effective August 4, 1972. Messrs. White and Bejma witnessed the
monthly calibration of the Beckman instrumentation system used for
the nine-mode FTP. A vehicle test utilizing the chassis version of
the nine-mode heavy-duty FTP was also witnessed.
On March 1, 1973, Messrs. Charles Domke and John White of
the Environmental Protection Agency again visited the Emissions
Research Laboratory for an inspection and project review. The cur-
rent status of the project was discussed. It was decided to omit from
fifth round tests four trucks (units 121 to 124), which had been unavail-
able for three months due to heavy usage by the fleet owner. Future
truck surveillance activities were also discussed. The consensus of
opinion was that little additional information could be gained from ex-
tending the testing of the current surveillance fleet. However, the
Emissions Research Laboratory staff expressed the conviction that
some truck surveillance activity should be planned for the 1974 model
trucks, since new emission standards had been set for the 1974 model
year.
The next project review occurred on July 31, 1973, when
Mr. John White visited the Emissions Research Laboratory for inspec-
tion and progress review. Another project review occurred on
December 15, 1973, when Mr. John White visited the Emissions Re-
search Laboratory accompanied by Mr. John Shelton. The final
project review was made on March 25 and 26, 1974 during a visit by
Mr. Charles Domke and Mr. John White. The status of the final re-
,'
port and its content and completion of the project were the items of
major importance discussed.
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H. THE TEST FLEET
The testing performed during this project was in two phases.
One phase was the actual surveillance tests themselves, the other
phase was a group of tests to correlate chassis dynamometer
and stationary engine dynamometer results. This section discusses
the reasons for the truck selections and briefly describes the charac-
teristics of the group of trucks used in each test phase.
A. Surveillance Fleet
This fleet of 1970 and 1971 trucks, originally numbering 152,
was assembled with the aim of obtaining as many makes and models
of trucks as possible, with 5 to 10 trucks per model if at all possible.
While the truck population by make and model and the population by gross
vehicle weight were the two primary factors considered, other factors
such as type of operation and maintenance were also considered in the
fleet selection. Availability of trucks in the local area also affected the
fleet composition. The resulting fleet, shown by manufacturer and
engine displacement in Table 1, was a compromise of all these consid-
erations. Table 2 compares the surveillance fleet to a sales-weighted
fleet. Figure 1 compares the test fleet by GVW with the 1970 factory
sales by GVW.
Figures 2, 3, and 4 show examples of the varied kinds and sizes
of trucks that made up the surveillance fleet.
Appendix Table A-2 lists the entire 152 trucks, with sources,
engine model, GVW, etc. , shown for each truck. For purposes of
analysis, this fleet has been divided into 23 categories of engine make
and displacement. These categories are listed in text Table 2 and
described in more detail in Appendix Table A-3.
B. Engine-to-Chassis Dynamometer Correlation Group
This group of 10 trucks/engines used to check the stationary-
to-chassis dynamometer correlation were selected to represent as many
different makes, displacements and gross vehicle weights as possible.
Emission levels were not considered when choosing trucks for this
investigation. All were either 1970 or 1971 trucks, except for corre-
lation Truck 4, which was a 1969 Dodge. This truck, while a 1969
truck, was "emission control equipped" as Chrysler Corporation
equipped all of its 1969 trucks to meet the 1969 California standards.
The 1969 California standards were the same as the 1970 Federal
standards. Because of the time required to remove the engine from a
given vehicle for testing on the stationary dynamometer, mostly rental
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TABLE 1. BREAKDOWN OF SURVEILLANCE FLEET
BY MAKE AND DISPLACEMENT
Chevrolet
4
2
11
7
2
2
28
8
15
23
3
17
1
4
5
3
4
37
5
2
1
8
13
8
23
7
51
250 CID 6; all 1970
292 CID 6; all 1970
307 CID V-8; all 1970
350 CID V-8; all 1971
366 CID V-8; all 1970
427 CIDV-8; one 1970; one 1971
TOTAL
Dodge
225 CID 6; all
318 CIDV-8;
TOTAL
Ford
240 CID 6; all
300 CID 6; all
302 CID V-8;
330 CID V-8;
360 CID V-8;
361 CIDV-8;
391 CID V-8;
TOTAL
GMC
1970
all 1970
1970
1970
all 1970
all 1970
all 1970
all 1970
all 1971
292 CID 6; all 1970
350 CID V-8;
401 CID V-6;
TOTAL
IHC
304 CID V-8;
345 CID V-8;
392 CID V-8;
478 CID V-8;
TOTAL
White
all 1970
all 1970
twelve 1970; one 1971
six 1970; two 1971
six 1970; seventeen 1971
four 1970; three 1971
5 400 CID 6; all 1970
Grand Total
Number of Six Cylinder Engines
Num.ber of V-8 Cylinder Engines
Number of 1970 Vehicles
Number of 1971 Vehicles
152
45
107
117
35
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TABLE 2. COMPARISON OF GASOLINE SURVEILLANCE
FLEET COMPOSITION TO A FLEET WEIGHTED TO
1971 ESTIMATED SALES
Category
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Vehicle
Make
Chev.
Chev.
Chev.
Chev.
Chev.
Chev.
Dodge
Dodge
Ford
Ford
Ford
Ford
Ford
Ford
Ford
GMC
CMC
GMC
IHC
IHC
IHC
IHC
White
Ford
Chrysler
Chev.
GMC
Chrysler
IH
Chrysler
Ford
Ford
Chrysler
IH
Cadillac
IH
Engine
CID
250
292
307
350
366
427
225
318
240
300
302
330
360
361
391
292
350
401
304
345
392
478
400
390
413
402
351
361
232
383
477
534
360
450
472
549
Estimated
1971
National
Sales (%)
2
see GMC
4
see GMC
2
1
1
8
2
3
3
7
19
2
1
2*
19*
1
3
5
2
<:!
<1
3
2
2
1
1
1
1
<1
<1
<1
<1
<1
<1
Numbers
in a Sales
Weighted
Fleet
3
see GMC
6
see GMC
4
2
2
12
3
4
4
11
29
3
2
4*
28*
1
5
7
3
1
1
4
3
2
2
1
1
1
1
1
1
0
0
0
Actual
Number
4
2
11
7
2
2
8
15
3
17
1
4
5
3
4
5
2
1
13
8
23
7
5
0
0
0
0
0
0
0
0
0
0
0
0
0
Difference
Actual - Sales
Weighted
+ 1
see GMC
+ 5
see GMC
-2
0
+ 6
+ 3
0
+ 13
-3
-7
-24
0
+ 2
+3
-19
0
+ 8
+ 1
+ 20
+ 6
+4
-4
-3
-2
-2
-1
-1
-1
-1
-1
-1
0
0
0
* GMC and Chevrolet were estimated together
-------
vD
60-i
c
o
l-i
4->
nJ
it
S,
(£50.
o
o
,0
40-
T3
fi
rt
g 30-
I
O
O
o
NO
20-
10"
fl
0)
O
0-
GVW
Range
1970 Factory Truck Sales
Source: 1971 Motor Truck Facts, MVMA
Surveillance Fleet
oo
/ / / / A
CO
CO
6001 to
10, 000
10, 001 to
14,000
14, 001 to
16, 000
16,001 to
19,500
19, 501 to
26,000
26, 001 to
33,000
Over
33,000
-------
Unit 55 - 1970 IHC 304 CID V-8
Unit 57 - 1970 IHC 304 CID V-8
Unit 60 - 197Q Chevrolet 307 CID V-8
Unit 64 - 1970 Dodge 318 CID V-8
Unit b8 - 1970 Ford 361 CID V-8
Unit 72 - 1971 IHC 345 CID V-8
FIGURE 2. EXAMPLES OF SURVEILLANCE TRUCKS
10
-------
Unit 77 - 1970 Dodge 225 CID 16
Unit 81 - 1970 Ford 300 CID !6
Unit 83 - 1970 Ford 361 CID V-8
Unit 91 - 1970 IHC 345 CID V-8
Unit 101 - 1970 Ford 330 CID V-8
Unit 105 - 1970 IHC 392 CID V-8
FIGURE 3. EXAMPLES OF SURVEILLANCE TRUCKS
11
-------
Unit 106 - 1970 Ford 360 CID V-8
Unit 110 - 1970 Chevrolet 307 CID V-8
Unit 112 - 1970 Chevrolet 307 CID V-8
Unit 117 - 1970 CMC 350 CID V-8
Unit 123 - 1970 CMC 292 COM*
FIGURE 4. EXAMPLES OF SURVEILLANCE TRUCKS*'
12
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trucks were used for this part of the project. However, an attempt
was made to include as many trucks from the surveillance fleet as
possible. Five of the surveillance fleet, units 8, 20, 21, 94, and 144,
are included in the correlation group as trucks 4, 1, 2, 9, and 8,
respectively. Appendix Table A-l describes the 10 trucks. Figure 5
shows some of the trucks and engines on their respective dynamometers.
13
-------
m &
Truck No. 3 Engine, 1969 Dodge 318 CID
V-8, on Stationary Dynamometer
Truck No. 5, 1971 Ford 330 CID V-8,
on Chassis Dynamometer
Truck No. 5 Engine, 1971 Ford 330 CID Truck No. 7 Engine, 1970 IHC 345 CID
V-8, on Stationary Dynamometer V-8, on Stationary Dynamometer
FIGURE 5. CORRELATION GROUP ENGINES AND TRUCKS
ON TEST DYNAMOMETER
14
-------
III. TEST PROCEDURES, INSTRUMENTATION, AND FUEL
The two phases of this study, the surveillance phase and the
correlation phase, used essentially the same test procedures and
similar, sometimes the same, equipment. This section explains the
test procedures and instrumentation used for both phases of the in-
vestigation and presents an analysis of the test fuel used during the
two phases of testing.
A. Test Procedure
1. Heavy-Duty Gasoline Nine-Mode Federal Test Procedure
The engine-operating schedule for both the surveillance tests
and correlation tests was the 1970 nine-mode Federal Test Procedure'''.
The correlation tests run on the stationary engine dynamometer adhered
strictly to the FTP as published in the November 10, 1970 Federal
Register. The chassis dynamometer tests were run using a chassis
dynamometer version of the FTP contained in the proposed Federal
Standard of January 4, 1968 as an alternate to the stationary method. '
This chassis version was deleted when the regulations were adopted
and published in the June 4, 1968 Federal Register'"'.
Briefly, the nine-mode FTP consists of the schedule shown in
Table 3, which is run four times for a total running time of 20 minutes.
The weighting factors, listed in the last column of the table, are used
to calculate the concentration results. The complete Federal Test
Procedure as published in the November 10, 1970 Federal Register,
is included in this report as Appendix C for convenient reference.
2. Surveillance Trucks
No specific pre-test preparations were made to this group of
152 trucks for the surveillance tests. A tag was placed in the engine
compartment of each truck stating the following:
"Engine on 12 month fleet test for Southwest Research
Institute. Engine to be maintained normally in accord with
usual fleet practice. Please report any difficulties requiring
adjustments to carburetion, ignition or internal engine main-
tenance to £here the name of supplier's maintenance super-
visor was insertedj. u
The fleet sources were also contacted personally to insure that
they understood no changes in their current maintenance procedure were
desired. At each test the exhaust system on each truck was inspected and
repaired or tightened where required to provide a leak-tight exhaust
system.
15
-------
TABLE 3. 1970 FEDERAL NINE-MODE CONSTANT SPEED
PROCEDURE FOR HEAVY-DUTY GASOLINE TRUCKS
Sequence Manifold
Number Vacuum
1 Idle
2 16 in. Hg
3 10 in. Hg
4 16 in. Hg
5 19 in. Hg
6 16 in. Hg
7 3 in. Hg
8 16 in. Hg
9 Closed
Throttle
Time in Mode,
sec.
70
23
44
23
17
23
34
23
43
Cumulative
Time, sec.
70 (1:10)
93 (1:33)
137 (2:17)
160 (2:40)
177 (2:57)
200 (3:20)
234 (3:54)
257 (4:17)
300 (5:00)
Weighting
Factors
0. 036
0. 089
0. 257
0. 089
0. 047
0. 089
0. 283
0.089
0. 021
Engine Speed 2000 + 100 rpm.
An initial 5-min idle, two warmup cycles and two hot cycles constitute
a complete dynamometer run.
-------
When a truck was brought in for a surveillance test, it was
placed on the chassis dynamometer and the engine checked to deter-
mine the timing, idle speed and dwell. An inlet manifold vacuum
line was installed and connected to the driver's vacuum gage. At
the first inspection the truck was then run at the various vacuum
levels specified in the FTP and the engine speed checked using a
stroboscopic tachometer to insure that the speed was within± 100 rpm
of the specified 2000 rpm with the motor pulleys used. (Dynamometer
operation is explained in Section III-C-2.) The fuel line from the
vehicle gas tank to the engine fuel pump was disconnected and a line
installed from the test fuel tank. The engine was then allowed to
soak for an hour prior to starting the test. The gas analyzers were
checked using zero level gas and a known concentration gas. The
exhaust gas sample probe was then placed in the tailpipe. Just prior
to starting the test, the barometric pressure and wet and dry bulb
temperatures were recorded. The radiator cooling fan was then started
and the engine started and warmed up for five minutes as prescribed in
the Federal Regulations. The nine-mode FTP was then begun. At the
completion of the FTP, the sampling system was checked for hydro-
carbon !thang upu and the instrument calibration rechecked.
If the engine was not within ±3° spark timing or ±100 rpm idle
speed of the manufacturer's specifications, these items were adjusted
to the specifications, the engine was allowed to cool for one hour and
a second FTP run. The engine was adjusted back to its Iras received"
condition before returning the truck to service. The results from each
nine-mode test were computed in accordance with paragraph 85. 109
of the applicable Federal Regulations (see Appendix C). In addition, the
composite value of NO was corrected for humidity using the correction
factor developed by the Ethyl Corporation.* '
3. Engine-to-ChasSis Dynamometer Correlation Group
Each of the 10 engines tested during this part of the procedure
was first checked in the vehicle to insure that it was within the manu-
facturers' specifications for idle speed, timing, dwell, carburetor
adjustments, and compression. The spark plugs were also checked
with an oscilloscope to insure that each one was firing properly. Other
than to insure that the engines were tuned to factory specifications,
no truck except the 1969 Dodge required any maintenance. The 1969
Dodge received new plugs, points, condenser, fuel filters, distri-
butor and carburetor. The engine was then tuned to factory specifi-
cations. Each truck was then tested on the chassis dynamometer
using the same procedure as the surveillance trucks. Several chassis
FTP tests were run, with a one hour soak period between each
test to verify the emission levels obtained.
17
-------
The engine, without the radiator and transmission, was
removed from the vehicle and installed on the stationary engine
dynamometer. The same vacuum gage and exhaust gas analyzers
that were used with the chassis tests were moved to the test cell for
use during the stationary tests.
The engine was directly coupled to the dynamometer and
used the test stand water-to-water heat exchanger in place of
the vehicle radiator. The vehicle exhaust system was connected to
the engine insofar as possible in the same configuration as on the
truck. A mechanical-pneumatic throttle linkage was installed on
the engine. The automatic data acquisition system was connected to
the gas analyzers and several runs of the FTP were made to insure
valid results.
The results of each of the nine-mode tests were calculated as
specified in the Federal Regulations. The chassis and stationary runs
were then averaged separately and the two averages compared.
B. Test Facility
With the exception of the first inspection round, all surveillance
tests were conducted at the SwRI Emissions Research Laboratory.
This laboratory, shown on the frontispiece, was placed in operation
in April 1971 and is equipped for controlled-environment operations
with the most modern means of emissions sampling and analysis.
The chassis dynamometer used for gasoline surveillance is
housed in one of the laboratory high bay areas. There is ample room
in this area to accommodate all instruments and the largest truck in
the surveillance fleet. Figure 6 is a picture of the surveillance test
area. The approximately 100 tons of air conditioning and heating
are capable of maintaining the laboratory high bay area at 70 °F to
75" F over the entire range of outside ambient temperature experienced
in the area. Some summer humidity control is obtained with atmos-
pheric water removal in the air conditioning system, but no other
humidity control is attempted.
The stationary engine dynamometer used in the stationary-to-
chassis dynamometer correlation tests is housed in test cell 3 of the
U. S. Army Fuel and Lubricants Laboratory at SwRI. This laboratory
is a completely-equipped engine test facility run by SwRI for the U. S.
Army. Figure 7 shows pictures of the control stand and test cell area
of test cell 3.
-------
.' ,
TRUCK RENTAL
FIGURE 6. SwRI EMISSIONS RESEARCH LABORATORY HIGH BAY
AREA FOR GASOLINE POWERED TRUCK TESTING
19
-------
Control Console, Test Cell No. 3
Typical Engine Installation, Test Cell No. 3
FIGURE 7. TEST CELL NO. 3 U. S. ARMY FUELS
AND LUBRICANTS LABORATORY, SwRI
20
-------
C. Test Equipment and Instrumentation
1. Exhaust Sampling and Analysis
For the surveillance tests, gas sampling and analysis for the
nine-mode FTP were accomplished using the system shown in Figure 8.
This system includes a gas sampling and analysis train using Beckman
non-dispersive infrared (NDIR) gas analyzers in a Beckman-built
sampling system and a Data General Super Nova Computer with the
necessary peripheral equipment for automatic data acquisition and
processing. The NDIR sampling train meets the requirements and
specifications established in the Federal regulations* '' for heavy-duty
vehicle exhaust sampling. For convenience, the portions of the
Federal regulations applicable to exhaust emission testing of heavy-
duty gasoline vehicles, as printed in the Federal Register, are repro-
duced in Appendix C. A flow diagram and component description of the
system is contained in this Appendix. Nominal full-scale concentration
levels for the five NDIR analyzers are as follows:
I, Low-Range HC - 1000 ppm hexane
2. High-Range HC - 10,000 ppm hexane
3, CO - 11 percent
4. CCX, - 16 percent
5. NO - 4000 ppm
Although nitric oxide was not included in the Federal regulations for
gasoline HDVs at the time the surveillance activity was started, it
was anticipated that it would be included in future regulations
and so provided valuable information on NO levels for trucks in
service prior to standards being set.
The NDIR cart was subjected to a rigorous calibration according
to exacting EPA requirements. Both static and dynamic gas simulator
tests were run initially on this and the similar instrumentation system
used in the correlation tests by Mr. Matt Macocha of EPA during
the period of September-November 1971. One of the EPA checks
was to name an unknown to ± 1 percent, a difficult requirement since
the basic detector is only specified to ± 1 percent by the manufacturer.
Suffice to say that no tests were made until initial calibrations were
satisfactorily completed and an EPA acceptance of time response
obtained. Recheck of calibrations and instrument response was accom-
plished periodically during the course of this project by EPA. Monthly
calibrations of all NDIR instruments were made throughout the surveillance
period by Emissions Laboratory personnel to assure optimum accuracy.
Calibrations were performed using the Emission Laboratory "Golden
Standard" gases. This set of 50 gas cylinders had been transported to
21
-------
FIGURE 8. CONTINUOUS NDIR SAMPLING /AN A LYSIS/
COMPUTER SYSTEM USED FOR NINE-MODE FTP TESTS
-------
EPA laboratories and the concentrations defined to EPA standards at
the beginning of the project.
The automatic data acquisition system used in conjunction with
the analytical instruments was designed and assembled by SwRI. The
system's main components are a Data General Super Nova computer
with an 8000 word central processor; a Computer Products Series
RTP7410 analog to digital converter and multiplexer, and a model
ASR33 teletype. The computer programming was also done by Institute
personnel. The data acquisition system accepts analog (voltage) signals
directly from the NDIR analyzers, digitizes these signals and converts
them to the proper units of concentration for processing to obtain the
composite values of HC, CO, and NO required by the FTP.
The output of each analyzer is also fed to strip-chart recorders.
The concentrations of each contaminant can be obtained from the con-
tinuous traces by hand as specified in the nine-mode FTP. The average
concentrations are then transferred to computer cards for further pro-
cessing to obtain composite values for HC, CO, and NO. This method
was used for part of the first inspection round and as a back-up to
the real time data acquisition system normally used for subsequent
inspection rounds. The accuracy and repeatability of the automatic
data acquisition system has been shown to be equal or better than manual
chart reading and computer reduction of data.
For the engine-to-chassis dynamometer correlation tests,
a similar gas sampling and analysis train was used with the same
automatic data acquisition system. This sampling and analysis system,
which can be seen in Figure 9, used Beckman NDIR gas analyzers in
a sampling system built by Scott Laboratories. This sampling train
also meets the Federal requirements for heavy-duty exhaust sampling.
2. Chassis Dynamometer
The SwRI chassis dynamometer system used in this and previous
projects is a modified Clayton CT-200 series dynamometer. Up to
200 hp may be absorbed with this water brake-type absorber. This
system incorporates a 50 hp, three phase, AC electric motor that,
when engaged, will maintain a nearly constant rear wheel speed during
power and closed throttle (CT) operation. The electric motor is
coupled to the front roll of the chassis dynamometer with a positive
drive belt. The vehicle engine speed can be changed by changing
vehicle rear wheel speeds either by operating in a different trans-
mission drive gear or changing motor drive pulleys. Figure 6 shows
typical views of trucks being operated on this dynamometer. The top
photograph is a side view of a truck mounted on the dynamometer rolls.
For the nine-mode FTP, the water brake absorber is unloaded and the
load and engine speed are controlled by the electric motor.
23
-------
Beckman/Scott NDIR Sampling
and Analysis System
Automatic Data Acquisition System
Electric Eaton Dynamometer
Typical Engine Installation
FIGURE 9. INSTRUMENTATION AND ENGINE INSTALLATION TEST
CELL NO. 3, ARMY FUEL AND LUBRICANTS LABORATORY
24
-------
3. Engine Dynamometer
The engine dynamometer used for engine tests in the U. S. Army
Fuel and Lubricants Research Laboratory is an all electric-Eaton
Dynamatic dynamometer. This dynamometer is capable of absorbing
300 hp at engine speeds from 2100 to 5000 rpm with 50 hp motoring
capacity at speeds up to 3500 rpm. Figures 7 and 9 show the dyna-
mometer and a typical engine installation
D. Fuel
The fuel used during all emissions tests, both chassis and
stationary, met the requirements of the Federal Regulations' "'.
A typical fuel analysis of the fuel used is given in Table 4. The fuel
used during the in-service operation of the vehicle was the fleet owner's
usual fuel. Normally this was a regular grade, name brand, leaded
motor fuel.
25
-------
TABLE 4. INSPECTION REPORT OF LEADED PREMIUM
MOTOR GASOLINE USED FOR ALL TESTS
Gravity, deg API (D287) 59.3
Distillation Range (D 86)
Initial Boiling Point, °F 88
5% Point, °F H6
10% Point, "F 127
20% Point, °F 150
30% Point, °F 1^5
40% Point, "F 20°
50% Point, °F 22°
60% Point, °F 235
70% Point, °F 254
80% Point, °F 276
90% Point, °F 305
95% Point, °F 327
End Point 340
% Recovery 98.0
% Residue 1 0
% Loss 1.0
Octane No., Research (D1656) 103.4
Total Sulfur, % wt (D1266) 0.004
Reid Vapor Pressure, psi(D323) 9.1
Hydrocarbon Composition (D1319)
Olefins, % 0.4
Aromatics, % 27.3
Saturates, % 72.3
Lead (Organic) g/gal (D526) 3.271
Phosphorus, Theory 0 0
Oxidation Stability (D525) 600 +
Existent Gum, mg (D381) 0 6
-------
IV. CORRELATION ENGINE TEST RESULTS
The results of the correlation tests are presented first since an
understanding of these tests and their results is necessary for proper in-
terpretation of the emission levels obtained from the surveillance tests.
Table 5 is a summary of the average FTP emission levels obtained from
the 10 correlation trucks/engines tested showing both chassis and en-
gine dynamometer results and the percentage difference between the two
types of tests. As can be seen from the table, there is no one factor that
will correlate the engine and chassis tests for any of the emissions,
However, with exception of the CO results from three trucks and the HC
results from one of these trucks, the chassis results fall within ±25 percent
of the stationary engine dynamometer results. The worst agreement is
shown by the CO emissions, with the largest difference for CO being 42
percent on Truck 4. More than half of the tests showed agreement within
±15 percent. A description of the trucks tested is given in Appendix
Table A-l, and the individual test results for each truck are contained
in Appendix B.
The exact reasons for the differences between chassis and en-
gine dynamometer tests are not known. A mode-by-mode comparison
of the tests for each truck shows that much of the difference can be attri-
buted to the idle, 3-inch vacuum level, and closed throttle modes. Idle
and closed throttle conditions are known to be the least repeatable from
test to test and this undoubtedly plays some part in the differences seen
between chassis and stationary dynamometer tests. The major dif-
ference between the two test methods was in the engine operating
environment. For the engine dynamometer tests, the engine was
in a large ventilated room with a much different radiant heat loss
characteristic than when installed in the engine compartment of a
vehicle. Convective heat losses were also different since in the vehicle
the engine fan and floor fan in front of the radiator provide cooling air
over the engine, while there was only natural circulation around the
engine on the test stand. Even though the chassis engine mounts were
used when the engine was on the engine dynamometer, the engine vi-
bration characteristics probably were different from the engine
mounted in £he vehicle. These vibration differences could have caused
differences in carburetor operation. These ideas are offered only as
possible explanations. Further investigation of the correlation pro-
blem may be desirable if certification standards continue to be based
on stationary engine dynamometer tests.
Since the stationary engine dynamometer tests were run in strict
accordance with Federal Regulations, they can be directly compared to
the Federal standards. Figure 10 is a histogram showing the levels of
HC, CO, and corrected NO for these engines. Also shown are the
Federal standards for each emission type. Since only one engine,
selected by chance, of each engine model represented was tested, no
conclusions can be drawn about a particular engine model from these tests.
27
-------
TABLE 5. SUMMARY OF CORRELATION TRUCK RESULTS
9-MODE HEAVY DUTY GASOLINE FEDERAL CYCLE
STATIONARY-TO-CHASSIS DYNAMOMETER COMPARISON
NO - PPM
t v<
oo
T rue k
1
2
3
4
5
6
7
8
Q
10
Avg.
HC -
Average
Station.
161
143
297
163
188
129
257
214
186
204
194
PPM - HEX.
Average
Chassis
182
172
293
207
218
130
208
227
162
245
204
% Average
Diff. * Station.
13.0 1.40
20.3 0.48
-1.3 4.43
27.0 1.70
15.0 1.18
0.8 1.78
-19. 1 1. 61
6. 1 1. 57
-12.9 1.01
20.1 1.34
6.9 1.66
CO, %
Average
Chassis
1. 07
0. 65
3. 31
2.41
1. 04
1.99
2. 08
1.40
0.90
1. 44
1.63
Observed
%
Diff. *
-Z3.6
36. 0
-25. 3
41.8
-11.8
12.2
28.6
-11. 1
-9.9
7. 3
3.8
Average
Station.
2076
1494
1577
1624
1324
926
2856
1611
3506
1586
1858
Average
Chassis
1747
1703
1648
1705
1436
869
2341
1679
3494
1479
1810
%
Diff. *
-15.9
14.0
4. 5
5. 0
8.4
-6. 1
-21.9
4.2
-0.6
-6.7
-1. 5
Corrected
Average
Station.
2296
1600
1567
1475
1130
811
2245
1685
2833
1253
1690
Average
Chassis
1735
1705
1579
1611
1318
754
2207
1395
3099
1252
1666
%
Diff. *
-24. 5
6.6
0.8
9.2
16.6
-7. 0
-1. 7
-17. 2
9.4
-0. 1
4.1
*Percent difference = (Chassis - Stationary)
Stationary
-------
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-------
V. SURVEILLANCE FLEET TEST RESULTS
This section summarizes the results from the two and a half
years of surveillance tests on 152 gasoline powered 1970 and 1971 model
year trucks in use in the San Antonio, Texas area. The results are
presented by inspection round (essentially this represents time in
service) and as a function of vehicle miles traveled. Analysis of the
test results is presented in the next section, Section VI.
A. Results by Inspection Round
A total of seven inspections were performed on each truck. The
first four inspections were at four-month intervals (0, 4, 8, and 1Z
months of service) and the last three inspections at six-month intervals
(18, 24, and 30 months of service). In this report, the first inspection
on all 152 trucks is referred to as the first inspection round or as
round 1, the second inspection on all trucks as round 2, and so on.
Table 6 shows the average emission levels and the maximum
and minimum levels for HC, CO, observed NO, and corrected NO for
all seven inspection rounds. As can be seen from the table, the fleet
average emissions for HC and CO increased over the surveillance
period but observed and corrected NO remained essentially unchanged.
Between the first and last inspections average HC increased 49 percent,
CO increased 52 percent, while corrected NO increased 3 percent.
The arithmetical average of the HC level for the first four
rounds was below the 1970 Federal Standard of 275 ppm. For the last
three inspections, average HC level was above 275 ppm. For CO, the
mean for each round was above the 1970 Federal Standard of 1. 5% for
all seven inspection rounds. There were no 1970 standards for NO.
During the surveillance period a standard of 2000 ppm was proposed
for 1973* ', but never adopted. Mean NO was below this value for
all seven inspections. Subsequently the nine-mode procedure was
changed to give results in grams per brake horsepower-hour, so
that a standard for NO in terms of volumetric concentration never
existed.
It should be noted that the Federal standards are used here as
a convenient reference and no conclusion should be drawn from any
comparisons with Federal standards without regard to the chassis-to-
stationary engine test differences explained previously and to differences
between the surveillance fleet and the total truck population.
The results of the surveillance inspection tests for each truck
are tabulated by test round in Appendix D, Tables D-l to D-7, for
30
-------
TABLE 6. AVERAGE FLEET EMISSION LEVELS
Round
Number of Trucks
152 148 148 145 140 137 127
Months from Beginning
of Test 0
12
18
24
30
HC-PPM n hexane
Average
Maximum value
Minimum value
Standard Deviation
Coefficient of
Variation (%)
CO - Percent
Average
Maximum value
Minimum value
Standard Deviation
Coefficient of
Variation (%)
NO observed - PPM
Average
Maximum value
Minimum value
Standard Deviation
Coefficient of
Variation (%)
NO corrected - PPM
Average
Maximum value
Minimum value
Standard Deviation
Coefficient of
Variation (%)
239
615
63
66
27.6
1. 61
5. 52
0. 26
0.81
50.3
1782
3985
423
646
36.3
1701
3957
378
614
264
420
139
52
19.7
1.73
6.56
0. 31
0.88
50.9
1880
3488
434
584
31. 1
1873
3314
429
563
261
1838
95
149
57. 1
1.89
11.92
0. 19
1.19
63.0
1940
3811
272
588
30.3
1911
3879
266
598
273
2093
120
219
80.2
1.79
4.90
0. 15
0.85
47. 5
1866
4008
439
677
36.3
1703
3696
378
594
311
3906
117
386
124. 1
1.95
7.07
0. 22
1.03
52.8
1878
4047
428
650
34. 6
1808
3940
374
648
343
2857
104
371
108.2
2.16
8.23
0.35
1.21
56. 0
1892
3667
317
687
36. 3
1733
3311
285
626
356
2151
134
381
107.0
2.44
8.36
0.41
1.51
61.9
1779
3576
294
717
40.3
1749
3769
300
731
36.1 30.1 31.3 34.9 35.8 36.1 41.8
31
-------
rounds 1 to 7, respectively. To help grasp some of the diversity of
these results, the trucks have been divided into groups by engine make
and displacement and the average emission levels of each group for
each inspection round have been calculated. Figures 11 to 13 are
histograms of these averages for HC, CO and corrected NO, respectively.
An examination of these figures shows that there is rarely a clear trend
in the emission changes between rounds. These histograms do, however,
show the tendency for those engine groups that are comparatively low
emitters to remain low emitters and those that are high emitters to
remain high emitters for any of the emissions measured.
B. Results by Odometer Miles
Since the individual vehicle mileage varied somewhat at the
initial inspection and the rate of mileage accumulation varied widely,
changes between inspections (which were done at regular time inter-
vals) are not necessarily reflective of changes with mileage. To gain
some understanding of the changes occurring with mileage, the
inspection results for each truck were plotted as a function of odometer
mileage. These plots are contained in Appendix E. While it would be
desirable to have a summary of the results at regular mileage intervals,
this would generally require interpolation between test points.
The curves in Appendix E use straight lines between points
as strictly a visual aid. The graphs are not intended to indicate that
the emissions necessarily follow a straight line between tests. In
fact, it seems probable that where very large increases in emissions
occur, that the change is due to some component failure, rapid
deterioration, or adjustment change, and is therefore probably a step
function. Maintenance, such as replacing bad points and spark plugs,
is capable of producing large decreases in emissions, giving a step
decrease at the mileage at which the maintenance was performed.
Therefore, no attempt has been made to average emissions at mileage
increments either for the fleet as a whole or for individual engine
groups.
To help comprehend the emission changes with mileage, the test
points for the seven inspections on each truck have been plotted in
Figures 14, 15 and 16 for HC, CO and corrected NO, respectively.
These scatter plots make no attempt to identify individual trucks or
data trends for individual trucks. The plots show the large range of
emission levels obtained at all mileages. The 1970 Federal emission
standards are shown on the plots for reference purposes. From a
visual inspection of these plots, it appears that the majority of the HC
test levels were below the Federal standard of Z75 ppm regardless of
32
-------
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FIGURE 12. EXHAUST CARBON MONOXIDE AVERAGE EMISSION LEVELS FOR THE
23 ENGINE MODEL GROUPS COMPRISING THE SURVEILLANCE FLEET
"0" MONTHS THROUGH 30 MONTHS INSPECTIONS (Cont'd on next page)
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FIGURE 14. HYDROCARBON TEST LEVELS FOR ALL SURVEILLANCE
TESTS AS A FUNCTION OF ODOMETER MILEAGE
39
-------
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FIGURE 15. CARBON MONOXIDE TEST LEVELS FOR ALL SURVEILLANCE
TESTS AS A FUNCTION OF ODOMETER MILEAGE
40
-------
4000-,
3000-
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£2000'
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-------
mileage, the majority of the CO test levels appear to be above the
Federal standard of 1. 5 percent, and the majority of the NO test
levels are below the proposed 1973 standard of 2000 ppm, regard-
less of mileage. The analysis of the effects of mileage on emissions
is covered in Section VI-C, where these plots will again be referred to.
4Z
-------
VI. ANALYSIS OF SURVEILLANCE FLEET TEST RESULTS
The analysis presented in this section falls into two areas.
The first area was the analysis done to meet the objectives of the project.
This is covered in the first three subsections. The remainder of this
section is a first attempt to analyze some of the reasons behind the
behavior of the test results.
A. Effectiveness of Exhaust Emission Controls
The first objective of this study was to determine the effective-
ness of the exhaust emission controls on 1970 and 1971 heavy-duty
gasoline trucks. To do this, the initial surveillance inspection was
performed when the vehicles were new, or nearly new, and tuned to
manufacturer's specifications for timing and idle speed. The fleet
average results for this inspection were presented in Table 6. While
this table shows the fleet average HC level was below the Federal stan-
dard of 275 ppm hexane and the fleet average CO level was above the
Federal standard of 1. 5 percent, this does not adequately define the
effectiveness of the exhaust emission controls. To do this, the percent
of trucks with emission levels below the Federal standards should be
known. Figure 17 shows the cumulative frequency distribution of HC,
CO, and NO for the first round inspections. Entering the graphs of HC
and CO at the emission levels of the Federal standards, it can be seen
that approximately 70 percent of the fleet had HC emission levels below
the Federal standards; while slightly less than 50% of the fleet had CO
emission levels below the Federal standard.
As explained previously, the surveillance test results cannot be
compared to Federal standards on an engine by engine basis. However,
it is felt that the correlation between chassis and stationary dynamometer
tests is close enough that the Federal standards may be used as a frame
of reference for the fleet as a whole. Thus, where the majority of the
fleet falls substantially within the Federal standards it is probable that
most of the engines in the fleet would meet the Federal standards if
tested on a stationary engine dynamometer.
With the initial effectiveness of the emission controls determined,
the next two subsections of the report deal with the second objective of
the project: to establish the performance of the exhaust emission controls
with time and mileage accumulation.
B. Effects of Time in Service on Emissions
While each of the trucks started the surveillance program with
a slightly different time in service, it is felt that changes between
43
-------
« 100-i
in >
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H § 80~I
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60-
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20-
1970 Standard = 275 ppm as n hexane
I I I 117
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Hydrocarbons as n Henaxe - ppm
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12345 6
Carbon Monoxide - Percent
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(Not Officially Adopted)
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FIGURE 17 CUMULATIVE FREQUENCY DISTRIBUTION OF EXHAUST
f MISSION LEVELS FOR FIRST ROUND INSPECTIONS (152 TRUCKS)
44
-------
inspection rounds will give a satisfactory indication of the effects of
time on emission levels. The trend for fleet average HC and CO
emissions to increase with time has been mentioned in Section V and is
easily seen in Table 6 in that section. The table also shows that there
was little change in corrected NO with time.
Since the fleet average could be adversely affected by a few trucks
with extremely high emission levels, perhaps a better way to understand
the behavior of the surveillance fleet emissions with time would be to
examine the changes in cumulative frequency distribution of emission
levels from round to round, comparing the percentage of trucks below
a given emission level (for instance, the Federal standards) for each
inspection round. Figures 18, 19, and 20 present the cumulative fre-
quency distribution curves for all seven inspection rounds for HC, CO,
and corrected NO, respectively.
These plots show the differences in slopes and emission levels
for given cumulative percentage from round to round and can be used
to investigate the fleet behavior in a variety of ways. However, it is
hard to compare the percentage below the Federal standard for each round
using these plots. To better visualize the change with time, the percen-
tage of trucks below the Federal standard has been plotted as a function
of the nominal time in service for each test round in Figure 21 for HC,
CO, and corrected NO.
There are two important conclusions that can be drawn from this
graph. The first is that throughout the two and one half years of sur-
veillance tests, the majority of the trucks continued to be within the
1970 Federal standards for HC and the 1973 proposed (but not adopted)
standards for NO. However, during the surveillance period, the ma-
jority of the fleet continued to have CO levels above the 1970 Federal
standards.
Secondly, it can be seen from Figure 21 that there is a definite
trend in HC and CO emissions for a smaller percentage of vehicles to
be below the Federal standard as time in service increases. For NO,
the trend is a slight increase in the percentage of trucks with emission
below 2000 ppm. Thus, part of the second objective of the study, to
determine the performance of the vehicles exhaust emission controls
with time in service, was accomplished. There was a slight deterior-
ation in the ability to hold HC levels down for the fleet as time progresses
and a somewhat larger effect on CO levels with time, with no such effect
on the NO levels with time.
It is felt that any increase in HC and CO exhaust emission levels
was the result of general engine deterioration and not the result of a
45
-------
100-1
Round 4
R ound 3
R ound 5
50
1970 Federal Standard
! 275 ppm HC as n Hexane
100
150
250 300 350
Hydrocarbon Emission Level, ppm hexane
400
450
500
FIGURE 18. CUMULATIVE FREQUENCY DISTRIBUTION OF HYDROCARBON
EXHAUST EMISSIONS FOR ALL INSPECTION ROUNDS
-------
0)
cq
4-> CO
81
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I
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u
100n
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601
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1970 Federal
| Standard
I
I
Round 5
Round 6
Round 7
2. 00
j.6o
2.50 3.00 3.50
Carbon Monoxide Percent
4.00
0.50
1.00
1.50
4. 50
5.00
FIGURE 19. CUMULATIVE FREQUENCY DISTRIBUTION OF
CARBON MONOXIDE EMISSIONS FOR ALL INSPECTION ROUNDS
-------
Round 4
R ound 1
Round 6
R ound 7
500
X
1 1
1000 1500
v : nounu D
\ Round 2
\ . . T? J LIIH.ll 7
1
| Proposed (but not adopted)
1973 Federal Standard
1
1
1 i i i i
2000 2500 3000 3500 4000
Corrected Nitric Oxide Emission Level, ppm
FIGURE 20. CUMULATIVE FREQUENCY DISTRIBUTION OF CORRECTED
NITRIC OXIDE EMISSIONS FOR ALL INSPECTION ROUNDS
-------
80 -i
60-|
80
1 1 1 1 1
6 8 10 12 14 16 18 20 22
Nominal Time in Service, Months
30
6 8 10 12 14 16 18 20 22
Nominal Time in Service, Months
24 26 28 30
8 10 12 14 16 18 20 22
Nominal Time in Service, Months
24 26 28 30
FIGURTT 21. PERCENT OF TRUCKS WITH EMISSION LEVELS
BELOW FEDERAL STANDARDS AS A FUNCTION OF TIME
4'9
-------
particular exhaust emission control "device". The air injection sys-
tem was the only external add-on exhaust emission control device
used on trucks of the model years tested, and it was used on only a
few models. Most trucks obtained the exhaust emission control required
by ignition system and carburetion adjustments. This premise is re-
inforced by the fact that the percent of trucks with NO emission levels
below 2000 ppm increases with time in service (i.e., NO levels are
decreasing slightly). Thus, with deterioration of the engine and its
subsystems as indicated by increased HC and CO, combustion effici-
ency decreased with the expected effect of lessening NO emissions.
C. Effects of Mileage on Emissions
The test results as a function of mileage were given in Section V-B.
The scatter plots in that section, Figures 14 to 16, showed no obvious
trends with mileage. A linear regression analysis was performed on HC,
CO, NO and corrected NO results to determine the correlation between
mileage and emission level. The correlation coefficients are shown below.
Emission
HC CO NO Corrected NO
Correlation Coefficient
with Mileage -17 -15 °5 °5
Recalling that a perfect correlation would give a correlation
coefficient of 1.00, it appears that the correlation coefficients obtained
are small enough to conclude that there is no relationship between emis-
sion level and mileage for the fleet as a whole. However, emission levels
have been shown to vary widely between engine groups and the possibility
exists that emission changes with mileage may vary from engine group to
engine group. Thus the emission level and mileage plots for the whole
fleet may mask changes occurring within engine groups.
An effort was made to define emission changes with mileage in a
more exact manner for each engine group. To do this, a method of nor-
malizing the emission test results was developed. This method allows the
use of each individual truck's results with all other trucks in an engine
group, despite large differences in absolute levels of emissions from
truck to truck. A computer program was used to calculate the percentage
change of each of the three pollutants versus total mileage for each ve-
hicle within an engine model group. This percentage change was based on
a common mileage for each engine group and was defined as the highest
mileage for any vehicle in the group at the time of the initial test round.
This definition was chosen to avoid having to extrapolate data trends,
since all vehicles would eventually reach the base mileage. The com-
puter program first finds the equations of the straight lines joining the
50
-------
emission results from the seven inspection tests for each truck within
a given engine group. This is done for HC, CO, observed NO, and
corrected NO. The resulting six equations for the six lines connecting
the seven data points were used to calculate the emission values at the
base mileage for each vehicle. The percentage differences between these
base emission values and the emission results from each round of testing
were then calculated. A sample calculation for one engine group is in-
cluded in Appendix F.
This analysis was completed for all engine model groups, even
if all trucks in the group did not reach the base mileage by the last
inspection round. In the eventuality that any truck had not reached the
base mileage by the last inspection round, either the truck that had not
reached the base mileage was not included or the truck whose first test
mileage was used as the base mileage was deleted to lower the base
mileage, whichever resulted in the fewest trucks being dropped from
the analysis. Where a truck was out of specification for timing and idle
speed when tested and then tested "in spec", the "in spec" test results
were used for this analysis to eliminate one of the variables that affect
emission levels. Plots of these percentage differences in emissions
versus odometer miles for all engine groups are presented in
These plots again emphasize the difficulty in arriving at specific
conclusions about emission level changes with mileage. However, some
generalizations can be made. First, the magnitude of changes is generally
within -40 percent to +60 percent of the base value. Hydrocarbons
exhibit the largest number of changes over 100 percent. Nitric oxide
has the fewest changes over 100 percent. Secondly, some conclusion
about the direction of change can be made. For HC, most of the engine
groups have results either predominately higher or have an equal num-
ber of tests higher and lower than the HC level from the minimum mileage.
For CO, most of the engine groups have results that are predom-
inately higher than the CO level at the minimum mileage for the engine
group. This is the most evident conclusion from the analysis that as
mileage increases, CO levels become generally higher than initial levels
though the CO levels do not necessarily change in a predictable fashion.
For NO, the engine groups showing an equal number of data points above
and below the level at the minimum mileage point and those groups
showing predominately decreasing levels are about equal in number.
Lastly, some of the engine groups do exhibit definite trends with
mileage for some of the emissions considered. While these trends were
not subjected to a rigorous analysis, a visual inspection was made
and a judgment as to the magnitude and direction of the trend given.
Table 7 presents the results of this visual inspection. As can be seen
from the table, for the majority of the engine groups that showed some
51
-------
TABLE 7. ENGINE MODEL GROUP EMISSION TRENDS WITH MILEAGE
Engine Model
Group Number
1
No. of Trucks
in Group
Emission Trend With Mileage
11
15
Hydrocarbons
No change
No change
No trend
No trend
5
6
2
2
No trend
No trend
No trend
No trend
Carbon Monoxide
No trend
No trend
Increased greatly
from 0 to 50, 000
miles
No trend
No trend
No trend
Corrected Nitric Oxide
No change
Increased slightly to
25, 000 miles, then de-
creased to 50, 000 miles
No change
Increased slightly from
0 to 25, 000 miles, then
decreased to 50, 000 miles
No trend
Increased moderately from
0 to 25, 000 miles, then
decreased moderately to
50, 000 miles
Increased moderately No trend
from 0 to 25, 000 miles
Increased slightly
from 0 to 25, 000
miies, then decreased
slightly to 50, 000
miles
No trend
-------
OO
TABLE 7 (Cont'd). ENGINE MODEL GROUP EMISSION TRENDS WITH MILEAGE
Emission Trend With Mileage
Engine Model No. of Trucks
Group Number in Group
10
11
12
13
14
15
16
17
1
4
Hydrocarbons
Increased slightly
from 10, 000 to
30, 000 miles, then
decreased slightly
to 50, 000 miles
Carbon Monoxide
No trend
No trend
No trend
Only one truck
Increased slightly
from 10, 000 to
50, 000 miles
Increased slightly
from 0 to 50, 000
miles
No trend
Increased slightly
from 0 to 30, 000
miles
Decreased
moderately from
5,000 to 30,000
miles, then
moderate increase
to 50, 000
Increased slightly
from 10, 000 to
50, 000 miles
Increased greatly
from 0 to 50, 000
miles
Increased greatly
from 10, 000 to
50, 000 miles
No trend
No trend
Corrected Nitric Oxide
Decreased slightly from
10, 000 to 30, 000 miles,
then increased slightly
to 50, 000 miles
No trend
Decreased slightly from
10, 000 to 50, 000 miles
Decreased moderately
from 0 to 50, 000 miles
Decreased slightly from
10, 000 to 50, 000 miles
No trend
Increased slightly
5, 000 to 50, 000 miles
-------
TABLE 7 (Cont'd). ENGINE MODEL GROUP EMISSION TRENDS WITH MILEAGE
Emission Trend With Mileage
Engine Model No. of Trucks
Group Number in Group
Hydrocarbons
17
18
19
20
21
22
23
1
13
8
23
7
5
No trend
Carbon Monoxide
No trend
Only one truck
No change 0 to
50, 000 miles
No trend
No trend
No trend
Increased slightly
from 5, 000 to
50,000 miles
No trend
No trend
No trend
No trend
Increased slightly
from 5, 000 to
50, 000 miles
Corrected Nitric Oxide
No trend
No trend
Decreased moderately
from 5, 000 to 50, 000
miles
No trend
No trend
Decreased slightly
from 5, 000 to
50, 000 miles
-------
trend, HC either had no change or increased slightly during the 50, 000
miles. Carbon monoxide increased during the 50,000 miles for all engine
groups that showed a trend. For the majority of the engine groups that
showed a trend for NO, there was a decrease during the 50, 000 miles.
To summarize the effects of mileage on emissions, it appears
that there was no trend for the fleet as a whole. However, as mileage
increases, CO levels were in general higher than the initial CO level,
though there was no discernible relationship between mileage and CO
level for the fleet as a whole. About 25 percent of the engine models
did exhibit HC and CO emission level trends with mileage; for these engine
models the only completely consistent trend was that CO increased with
mileage. About 50 percent of the engine groups exhibited a trend for
NO emission levels. Slightly more than half of these engine groups
showed a decreasing NO level trend with mileage.
Thus the findings for the third objective of the project, to estab-
lish the performance of exhaust emission controls with mileage accumu-
lation, are a good deal more nebulous than the findings for the first two
objectives. As mentioned previously, when a truck was received for
test "out of spec" for timing and idle speed, it was tested "as received"
and then set to specifications and retested. These tests were compared
to determine the effects of timing and idle speed on emissions. The
results of that comparison are presented in the next section.
D. Effects of Timing and Idle Speed
As explained in Section III, the surveillance trucks were checked for
timing and idle speed prior to each surveillance test. All vehicles tested
in round 1 were intentionally run with timing and idle speed within manufac-
turers' specifications. The vehicles found to be out of timing and idle speed
specifications during the other inspection rounds were tested as-received
then adjusted to manufacturers' specifications for timing and idle speed
and retested. The trucks were restored to the as-received condition
prior to being returned to service.
Appendix Tables D-36 to D-41 show the as-received and "in
spec" emission levels for those vehicles found to be out of specification
for rounds 2 to 7, respectively. Of the 148 vehicles tested in round 2,
35 vehicles (about 20 percent) were out of specifications limits; for round
4, 24 vehicles of 145 (about 17 percent) were out of specification limits;
for round 5, 18 vehicles of 140 (about 13 percent); for round 6, 5 vehicles
of 137 (about 4 percent); and for round 7, 2 vehicles of 127 (about 2 per-
cent) were out of specification limits.
The reasons for the drop in the number of out-of-spec vehicles in
the last three rounds, and particularly the last two rounds, is not known.
One reason is that several of the vehicles that were out-of-spec on
55
-------
previous rounds had reached the 50, 000 mile testing limit and were
not tested during the last two inspection rounds. Another reason is
that the fuel shortage and increase in fuel prices in 1973 may have
caused a general renewal of emphasis on maintainance and adjustments
among some fleet owners.
Appendix Tables D-42 to D-47 show the percent change in emis-
sions for each truck as the result of adjusting timing and idle speed for
each of the inspection rounds. The most common reason for retest was
excessively advanced timing. Timing was so advanced on 22 of the 35
vehicles requiring tests in round 2, 1 7 of 29 in round 3, 13 of 24 in round
4, 7 of 1 8 in round 5, 5 of 5 in round 6, and 2 of 2 in round 7. When the
early timing was corrected, there was a substantial reduction in nitric
oxide emission levels. A smaller, but fairly consistent reduction in
hydrocarbons and carbon monoxide can also be seen. For those vehicles
with late timing in almost every case emissions increased when adjusted
to manufacturers' specifications.
E. Effects of Vehicle Variables
The plots of the individual truck emission levels in Appendix E
and Figure 14 to 16 in the preceding section emphasize the wide range
in both the emission levels and changes in levels from test to test.
Obviously a number of variables affect the test results. Although
beyond the scope of this project, an attempt was made to define some
of the major variables. It should not be surprising, however, that there
will be many individual trucks whose test results run counter to these
general conclusions because of the effect of some parameter not considered.
The results from each inspection round were analyzed independently
to obtain average, maximum, and minimum values for each contaminant
and to determine what factors contributed to the emission level differences
within a given round. The average, maximum and minimum values were
presented in Table 6 in the previous section along with the standard
deviation and coefficient of variation. The standard deviation and coef-
ficient of variation (standard deviation divided by the average) are in-
dicators of the data spread about the average.
For each inspection round, the frequency distribution and cumu-
lative frequency distribution for each emission has been calculated.
Plots of these distributions are contained in Appendix D, Figures D-l to D-14.
These plots also show the wide range of values obtained for each emission
during an inspection round. The question arises as to whether this data
spread is just the result of chance variations between trucks, or whether
emission level is a function of some specific factor.
To determine what factors were significant in explaining the
variation of emission levels within each inspection round, analysis of
56
-------
variance techniques were used. A linear regression analysis was
performed on the first round data when 81 of the 152 trucks had com-
pleted testing. The analysis was done on HC, CO, and observed NO
with engine make, number of cylinders, and gross weight each as
the independent variable. The results indicated that for each emission
there was a significant difference due to make. For HC and CO it was
the only significant factor. For observed NO, however, the number of
cylinders seemed to be more significant than make. The V-8 engines in
general seemed to have lower NO emissions than 6 cylinder engines.
When the first test round was completed, examination of the data
indicated that engine manufacturer and number of cylinders alone would
not explain the differences in emission levels. It was, therefore, decided
to analyze the data by engine model (manufacturer, displacement, and
number of cylinders) using a one way analysis of variance. This was
done for each of the emissions using 17 of the 23 engine model groups
in the fleet. Please refer to Appendix Table A-3 for a description of
each engine model group. The other six engine model groups had too
few engines in the group for statistical analysis. The results of this
analysis indicated a statistically significant difference at the . 01 sig-
nificance level. In other words, there was a 1 percent or less change
that the emission level differences seen between engine models were
due to pure chance.
To ascertain if other variables were significant factors in the
emission level differences within the test round, a stepwise multiple
linear regression analysis was performed. The following factors were
considered:
Engine model (make and displacement) (23)
Transmission (2)
Service Category (6)
Mileage group (4)
Gross weight group (3)
Mileage at start of test
The numbers in parentheses indicate how many categories were in
each factor. Please refer to Appendix Table A-4 for a definition of
each of these factors (other than engine group) and the trucks included
in each group. Variables were defined as follows:
1-22 for engines
23 for transmission
24-28 for service group
29-31 for mileage group
32-33 for gross weight group
34 mileage at start of test
35 HC, CO, or observed NO
57
-------
Variables 1 to 33 were assigned values of 0 or 1. For example,
engine code 1 was represented by assigning zeroes to variables 1 to 22.
Engine 2 was represented by assigning a value of 1 to variable 1 and
zeroes to variables 2 to 22. A similar coding scheme was used for
the other factors.
In general, results from the stepwise multiple linear regression
again indicated that engine model (make and displacement) was the most
significant factor in explaining variations in HC, CO, and NO. This was
the only significant factor for HC. For CO, there appeared to be a
slight difference due to type of transmission. It should be noted, however,
that of the 44 automatic transmissions, 22 were for the same engine model.
Since only 7 of the 23 engine groups had any vehicles with automatic trans-
missions and these engine groups tended to be substantially all auto-
matic transmissions or have only one automatic in the group, it is very
hard to separate transmission from engine group. It would not be ex-
pected that transmission type would affect emissions since the nine-
mode cycle is an engine exercise based solely on engine vacuum and rpm.
It is felt, therefore, that the difference attributed to transmission is
really due to engine group.
Initial mileage at the start of the project seemed to be a signifi-
cant factor in explaining the differences in observed NO. The correlation
coefficient between initial mileage and observed NO is 0.401. However,
initial mileage correlates well with many of the engine model groups so
that it is hard to separate initial mileage and engine group. Again, the
best that can be said is that initial mileage may be significant in explaining
observed NO emission differences within the first inspection round.
The same multiple linear regression analysis was used on the
second round results. The results for round 2 were the same as those
for round 1, that is, the most significant factor in explaining emission
level differences was engine model. As in round 1, CO differences
showed some correlation with type of transmission and odometer mileage
seemed to be a factor in observed NO differences.
Since the multiple linear regression analysis showed only those
factors that had been previously used to be of significance, it was
decided to use the one-way analysis of variance technique on the subse-
quent rounds since it is easier to use and interpret and will yield just
as useful results.
A one-way analysis of variance was performed on the third
round data using the factors that had been shown to be significant in
the previous two inspection rounds. The analysis was done on each
emission (HC, CO, observed NO and corrected NO) by engine model
group (manufacturer, displacement and number of cylinders) again
58
-------
using 17 of the 23 engine model groups in the fleet. For all emis-
sions, engine group was a statistically significant variable at the . 01
significance level. This agrees with the results from rounds 1 and 2
which also showed engine group as a statistically significant variable.
The analysis of variance was also run on both observed and
corrected NO using number of engine cylinders as the independent
variable. This analysis, too, indicated a statistical significance at
the . 01 significance level. Since number of cylinders is often an indi-
cation of displacement (6 cylinder engines normally having displacements
below 300 cubic inches), it may be that displacement would correlate
with NO levels. To check this, a regression analysis was performed
on corrected NO with engine displacement as the independent variable.
Because timing effects NO emissions (see Section VI-D), it was decided
to use the data taken with the engine at the specification values for
timing and idle speed. The regression analysis failed to show a
reasonable correlation between displacement and corrected NO levels
for any of six different curve forms.
CO had previously appeared to be somewhat influenced by type
of transmission. Although it was felt that this was due to the close
correlation between engine model group and transmission type, the
relationship was also checked for round 3 inspections using the one-way
analysis of variance. There was no correlation at the . 01 significance
level.
Similar analyses of variance were performed on the fourth
through seventh round data. For all of these inspection rounds engine
model was a statistically significant variable for CO and observed and
corrected NO at the .01 significance level.
Engine model was not a statistically-significant variable for HC
emission from the fifth through the seventh inspection round. The
reason is probably associated with the increased dispersion of the
data. Referring back to Table 6, it can be seen that the coefficient of
variation increased from about 80 percent for round 4 to over 100 percent
for rounds 5 through 7.
Using transmission type as the independent variable, an analysis
of variance was run on CO levels for each of these inspection rounds.
There was no correlation at the .01 significance level, except for the
seventh round. Thus for three of the seven inspection rounds, CO level
appeared to be influenced by type of transmission despite the fact that
the test procedure is an engine exercise only. The scope of this project
does not allow for further investigation into the reasons for this correla-
tion, but it is presented as a point of possible future interest. The analysis
59
-------
of variance performed on NO emissions with, number of engine cylinders
as the independent variable showed that number of cylinders was signi-
ficant at the . 01 level for all inspection rounds.
Table 8 summarizes the results of the Analyses of Variance
performed on inspection data. The table shows that engine model is
the most significant variable in explaining emission level variations
for all emissions. This fact lends added importance to the plots of
average emissions for each engine group by inspection round presented
in Figures 11 to 13. This graphical presentation provides a good
overview for comparison of engine groups with each other and with the
1970 Federal standards. Appendix Tables D-8 through D-35 list this
information in tabular form together with the minimum value, maximum
value and standard deviation for each group.
F.
Effects of Maintenance on Emissions
In order to determine if the quality of maintenance had an ef-
fect on emission level changes, the surveillance fleet was divided
into three maintenance categories. These groups were designated as
above average, average, and below average maintenance. Assignment
was made by truck source so that all tracks from one fleet source are
in the same maintenance category. Appendix Table A-5 lists the trucks,
by unit number, assigned to each maintenance category.
For each truck, the change in emissions between its first test
and last test was calculated. The average change and standard devia-
tion of each emission type for each maintenance category was also
calculated. These results are presented below.
Average Emission Level Change
in Maintenance Category
HC ppm
CO percent
Corrected NO ppm
An analysis of variance was also performed to determine if
the difference between groups was statistically significant. The re-
sults showed that for CO, maintenance category was a statistically
significant variable at the .01 significance level in emission level
change between the first and last emission test. Maintenance category
was not a significant variable at the . 01 level for HC and corrected NO.
Above Average
74.
0.36
161.
Average
120.
0.79
25.
Below Average
205.
1.42
-30.
60
-------
TABLE 8. RESULTS OF ANALYSIS OF VARIANCE
Inspection Engine Transmission Number of Gross Vehicle
Round _ Group Type Cylinders Weight
HC
1 SO) NS(2) NS S
2 S NS NS NS
3 S
4 S
5 NS
6 NS
7 NS
CO
1 S S NS NS
2 S S NS NS
3 S NS
4 S NS
5 S NS
6 S NS
7 S S
Corrected NO
1 S NS S NS
2 S NS S NS
3 S S
4 S S
5 S S
6 S S
7 S S
(1) S denotes that variable is significant at . 01 significance level.
NS denotes that variable is Not significant at . 01 significance level.
61
-------
G. Discussion of Analysis
Since few unqualified conclusions resulted from the data
analysis, the reader is cautioned against using the results out of con-
text or without due regard for how the conclusions were developed.
However, within the context of the assumptions and restraints used in
this section it is felt that the objectives of the project were fulfilled.
The effectiveness of the 1970 heavy-duty gasoline exhaust emis-
sion controls was demonstrated with the first round of chassis nine-mode
FTP tests performed on the surveillance fleet. Even though these were
chassis tests, the chassis-to-stationary engine dynamometer compari-
son performed as part of this study indicates that for the fleet as a
whole, chassis tests will provide a general guide as to whether the
exhaust emission controls were effective. Using the percentage of
trucks below the Federal standard as an indicator of the effective-
ness of the controls, Figure 17 can be used to make that judgment.
The second objective of the study, to define the performance
of exhaust controls with time and mileage accumulation, has also been
fulfilled. However, as can be expected with a complex problem, there
is no simple answer. From the analysis presented in this section, it
appears that time in service may be a more important factor in deteri-
oration of HC and CO exhaust emissions than mileage. As time in
service increased there was a definite trend to have fewer trucks within
the Federal standards for HC and CO. There was no apparent exhaust
emission trend for the fleet as a whole with mileage. Some individual
engine groups do exhibit definite trends with mileage, though the trends
for a given emission type are not all in the same direction. In fact,
sufficient trucks had HC and CO emission that either decreased or did
not change during the 50, 000 miles of testing to conclude that it is
erroneous to assume that exhaust emissions from trucks must increase
with increasing mileage. Many factors influence the exhaust emission
levels and changes in levels with time and mileage; a few have been
examined in this report, but much more needs to be done to understand
the behavior of exhaust emission levels from trucks in service.
It could be inferred that 1970 and 1971 gasoline HD trucks
required little in the way of specific control and that in effect this proj-
ect merely demonstrated the quality and durability of the basic engine.
It might also be inferred that it remains to be seen what effect more
stringent emission levels might play in the in-use aspects of HD gasoline
truck emissions with time and mileage. These inferences bring up points
that, though beyond the scope of this project, are nonetheless thought
provoking.
62
-------
VII. SUMMARY AND CONCLUSIONS
With the advent of exhaust emission standards for heavy-duty
trucks in 1970, the need became apparent for information on the
effectiveness of these controls on trucks in the field and on the emission
behavior with time in service and mileage accumulation. The study
covered in this report was undertaken to fulfill that need. To meet the
objectives of the study, a fleet of 152 trucks in use by a variety of fleet
owners in the San Antonio, Texas area was assembled for periodic
testing of hydrocarbon, carbon monoxide, and nitric oxide exhaust
emissions. The surveillance period was ultimately extended to 30
months or 50, 000 miles, whichever came first, with up to seven periodic
inspections performed on each truck.
The test used to obtain the exhaust emission levels was a chassis
dynamometer version of the nine-mode Federal test procedure (FTP)
used for gasoline powered truck certification. To ascertain the correla-
tion between the chassis dynamometer and the stationary engine dynamo-
meter versions of the nine-mode FTP, a group of 10 engines was run on
both dynamometers using the nine-mode FTP to determine exhaust emis-
sions. The results of the testing done under this project thus fall into
two areas, the first being the results of the correlation tests and the
second being the results of the surveillance tests themselves.
The conclusions from the correlation study of the 10 engines
tested on both a stationary dynamometer and in a truck on a chassis
dynamometer are summarized as follows:
1. There is no one value that will correlate the results of
chassis and stationary engine dynamometer FTP tests.
The agreement varied from engine to engine and for each
emission. The difference between emission levels ob-
tained from the two test methods normally ranged between
±25 percent. More than half of the test results agree
within ±15 percent.
2. The generally-close agreement between chassis dynamometer
and engine dynamometer test methods demonstrated by the
correlation tests validated using the chassis dynamometer
version of the Federal Test Procedure in surveillance testing
and comparing the fleet averages to Federal standards. How-
ever, chassis test results from individual trucks should not
be compared to Federal standards on a pass-or-fail basis.
Although the stationary engine dynamometer test is the legal
certification test method, the chassis dynamometer test is
felt to be more realistic and indicative of how the engines
perform in actual vehicle operation.
63
-------
The two and one half years of surveillance testing met the major
objectives of the study. The results are summarized below.
1. The 152 surveillance trucks were tested when new, or nearly
new, and tuned to manufacturers' specifications for timing
and idle speed using a chassis dynamometer version of the
nine-mode FTP. Approximately 70 percent of the fleet, when
new, had HC levels below the 1970 Federal standard of .275 ppm
hexane. Approximately 50 percent of the fleet, when new, had
CO levels below the Federal standard of 1 . 5 percent at that
time.
2. The majority of the surveillance fleet had hydrocarbon emis-
sion levels less than the 1970 Federal standards of 275 ppm
hexane for all inspections during the two and one half years
of the program. Nitric oxide emission levels for the majority
of the fleet were less than the proposed (but not adopted) 1973
limit of 2000 ppm for all inspections. The majority of the fleet
had CO levels greater than the 1970 Federal standards of 1. 5
percent for all inspections.
3. The fleet average emission level for HC and CO emissions in-
creased during the surveillance period. The fleet average NO
emission level remained essentially unchanged.
4. The percentage of trucks within a test round having HC levels
below 275 ppm tended to decrease with increasing time. The
percentage of trucks with CO levels less than 1.5 percent also
tended to decrease with increasing time. The percentage of
trucks with NO levels below 2000 ppm tended to increase with
increasing time.
5. Approximately 25 percent of the individual engine groups
showed an increase in CO levels with mileage, and about 50
percent exhibited a decrease in NO levels with mileage.
6. Engines with spark tinning more advanced than the manufacturers'
specifications showed higher levels of NO than was the case
where they were adjusted to manufacturers' specifications.
7. The surveillance inspections showed a large range of exhaust
emission levels for HC, CO, and NO within each inspection
round. Engine model was the most significant factor in ex-
plaining this emission level range within any test round.
8. The number of cylinders in an engine correlated with NO level
differences within each inspection round. In general, 6 cyl-
inder engines had higher NO levels than 8 cylinder engines.
64
-------
9. The quality of maintenance was a significant factor in ex-
plaining increases in CO levels during the surveillance
period.
In conclusion, this study provided the necessary information to
evaluate the effectiveness of the 1970 exhaust emission controls. The
emission level changes with time and mileage accumulation appear to
indicate that time in service is more important than mileage in defining
deterioration. Some HC and CO deterioration is evident in the fleet
with time. This does not mean, however, that all trucks have higher
HC and CO levels at the end of the test than at the beginning. It is
quite possible for a truck to have had the same or lower emissions at
the end of the surveillance project than at the beginning. Since there
were few emission control devices on the trucks, what deterioration that
did occur is felt to be due to general engine deterioration. Whether the
trends seen in this report are valid for trucks meeting the 1974 standards
which require a more stringent level of control is not known. It is there-
fore recommended that a surveillance study of 1974 trucks be undertaken
to ascertain if the emission trends seen in this study are valid for trucks
meeting more stringent standards.
65
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LIST OF REFERENCES
1. 1973 Motor Truck Facts, Motor Vehicle Manufacturers Associa-
tion of the U. S. , Inc.
2. Springer, Karl J. , "An Investigation of Emissions from Trucks
Above 6000-lb GVW Powered by Spark-Ignited Engines, " Final
Report to the U. S. Public Health Service, under Contract No.
PH 86-67-72, March 1969.
3. Springer, K. J. , Williams, G. L. , Olsen, R. W. , and Mills, K. D. ,
"Emissions from Gasoline-Powered Trucks Above 10, 000-lb GVW
Using PHS Proportional Sampling Techniques, " AIChE Paper No.
53C presented at the Sixty-First Annual Meeting, Los Angeles,
California, December 1968.
4. Olsen, R. W. and Springer, K. J. , "Exhaust Emissions from Heavy-
Duty Vehicles, " SAE Paper No. 690764 presented at the National
Combined Fuels and Lubricants and Transportation Meetings,
Houston, Texas, November 4-7, 1969.
5. Tyree, C. D. and Springer, K. J. , "Studies of Emissions from
Gasoline-Powered Vehicles Above 6, 000-lb Gross Vehicle Weight, "
Final Report to the National Air Pollution Control Administration
under Contract No. PH 86-67-72, July 1970.
6. Springer, K. J. and Tyree, C. D. , "Exhaust Emissions from
Gasoline-Powered Vehicles Above 6, 000-lb Gross Vehicle Weight, "
Final Report to the Environmental Protection Agency under Contract
No. EHS 70-110, April 1972.
7. Federal Register, Vol. 36, No. 219, Department of Health, Education
and Welfare, November 10, 1970.
8- Federal Register, Vol. 33, No. 2, Part II, Department of Health,
Education and Welfare, January 4, 1968.
9- Federal Register, Vol. 33, No. 108, Part II, Department of
Health, Education and Welfare, June 4, 1968.
10- Federal Register, Vol. 36, No. 193, Department of Health,
Education and Welfare, October 5, 1971, p. 19400.
11. Krause, S. R., "Effect of Engine Intake-Air Moisture, Temperature,
and Pressure on Exhaust Emissions", Ethyl Corporation Research
Laboratories, December 1970.
66
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APPENDIX A
DESCRIPTIONS OF VEHICLES TESTED
-------
TABLE A-l. DESCRIPTION OF STATIONARY ENGINE-TO-CHASSIS
DYNAMOMETER CORRELATION TEST TRUCKS
No. Year Make GVW CID^ Cyl. Body Date Mileage Source
1
2
3
4
5
6
7
8
9
1970
1970
1969
1970
1971
1970
1970
1971
1970
Ford
Ford
Dodge
White
Ford
Chev
IHC
IHC
Chev
10,
7,
23,
30,
23,
18,
16.
32.
14,
000
500
000
000
000
000
000
000
000
300
240
318
400
330
350
345
478
292
6
6
V8
6
V8
V8
V8
V8
6
Stake
Pickup
Stake
Tractor
Van
Van
Van
Tractor
Van
8-71
8-71
9-71
11-71
11-71
11-71
12-71
1 72
1-72
8, 200
22,500
33,500
25,300
800
11, 300
9, 800
20,200
5, 000
Hertz
Hertz
O.R.
Mitchell
ABC
Hertz
E Z
ABC
ABC
Haul
City Parks
& Rec. Dept
10 1971
IHC
26,000 392 V8
Maint.
2-72
83
CPSB
A-2
-------
TABLE A-2. DESCRIPTION OF SURVEILLANCE FLEET
Unit
No.
1
i
3
3
6
7
8
9
~)0
] 1
IZ
13
14
15
16
17
18
H
20
21
22
23
24
29
26
27
28
29
Jfl
3J
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Date
Tested
10-22-70
10-22-70
10-23-70
10-23-70
10-23-70
11-18-70
11-19-70
11-20-70
11-23-70
11-24-70
11-25-70
11-27-70
11-27-70
11-27-70
11-30-70
12-1-70
12-2-70
12-3-70
12-4-70
12-3-70
12-4-70
12-4-70
12-4-70
12-7-70
12-7-70
12-4-70
12-7-70
12-7-70
12-8-70
12-8-70
12-10-70
12-10-70
12-10-70
12-10-70
12-10-70
12-10-70
12-10-70
12-11-70
12-11-70
12-14-70
12-14-70
12-15-70
12-15-70
12-16-70
12-16-70
12-17-70
12-28-70
12-28-70
12-29-70
12-29-70
Truck
No.
P041001
P040999
P040997
P041000
P041002
353
349
351
350
352
24340
24341K
24343
24342
56
53
55
6
54
72341
72218
5131
5132
5136
5141
4952
6615
6616
4824
4726
4728
4729
671
672
673
4727
4730
4951
8810
8811
6855
6617
6856
4671
6857
4950
312
314
301
302
Vehicle
Source Year
P. O. D.
P. O. D.
P. 0. D.
P. O. D.
P. O. D.
ABC
ABC
ABC
ABC
ABC
Ryder
Ryder
Ryder
Ryder
N. S. S. D.
N. S. S. D.
N. S. S. D.
N. S. S. D.
N. S. S. D.
Hertz
Hertz
C.P.S.B.
C.P.S.B.
C.P.S.B.
C.P. S. B.
C.P.S.B.
C. P. S. B.
C.P.S.B.
C. P. S. B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1970
1971
1971
1971
1970
1970
1970
1970
1970
1970
Brown Exp. 1971
Brown Exp. 1971
Brown Exp. 1971
C.P.S.B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
C. W.B.
C. W. B.
C.W.B.
C.W.B.
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
Engine
Make CID
Dodge
Dodge
Dodge
Dodge
Dodge
White
White
White
White
White
1HC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
Ford
Ford
IHC
IHC
IHC
IHC
IHC
Ford
Ford
Ford
Chevrolet
Chevrolet
Chevrolet
Ford
Ford
Ford
Chevrolet
Chevrolet
IHC
Ford
Ford
Ford
Ford
Ford
Ford
Ford
IHC
IHC
IHC
IHC
IHC
318
318
318
318
318
400
400
400
400
400
478
478
478
478
345
345
345
345
345
300
240
392
392
392
392
304
300
300
300
292
250
250
300
300
300
250
250
304
300
300
300
300
300
300
300
304
304
304
304
304
Cyl.
V8
V8
V8
V8
V8
6
6
6
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
V8
V8
V8
V8
V8
6
6
6
6
6
6
6
6
6
6
6
V8
6
6
6
6
6
6
6
va
V8
V8
V8
V8
Trans
Speeds*
3 auto
3 auto
3 auto
3 auto
3 auto
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5
5
5
5
5
3 auto
3 auto
3 auto
3 auto
3 auto
3 auto
4
4
4
4
4
4
4
5
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
GVW
Ibs.
10,000
10,000
10.000
10,000
10,000
30,000
30,000
30,000
30,000
30,000
32,000
32,000
32,000
32,000
25.500
25,500
25,500
22,000
22,000
10,000
7, 500
25.500
25,500
25.500
25,500
14.000
10,000
10.000
16.000
9,000
7,500
7.500
24,000
24,000
24,000
7,500
7,500
14,000
16,000
16,000
16,000
10,000
16,000
10,000
16.000
19,700
19.700
19.700
10,000
10,000
Vehicle
Type
Van
Van
Van
Van
Van
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
School Bus
School Bus
School Bus
School Bus
School Bus
Slake_
Pickup
Line
Line
Line
Line
Van
Service
Service
Service
Service
Service
Service
Freight Van
Freight Van
Freight Van
Service
Service
Service
Service
Service
Service
Wrecker
Service
Stake
Service
Initial
Mileage
8
19
21
38
22
9245
9109
9178
9010
9552
163
56
2730
1259
4196
4037
3620
4197
3961
7361
9108
44
43
37
29
34
365
415
2103
4356
3000
1274
20
27
12
2228
841
1549
1677
1227
343
414
2770
1142
3357
Bucket Truck 561
Service
Service
Crew Truck
Crew Truck
6816
3521
3099
4264
*Hl-Lo me an a two-speed rear axle.
A-3
-------
TABLE A-2 (Cont'd). DESCRIPTION OF SURVEILLANCE FLEET
Unit Date
Ko Tc-ited
* 1 2-30-70
^2
T 1
-)
>t
ld
^,f
00
M
/,J
hi
65
fab
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
2-31-70
2-31-70
2-31-70
-2-71
-2-71
-2-71
-Z-71
l-l\
-3-71
-3-71
-3-71
-3-71
-6-7!
-7-71
-9-71
-9-71
-9-71
-12-71
-12-71
-12-71
-12-71
-13-71
-13-71
-16-71
-16-71
-16-71
-16-71
-16-71
-18-71
-20-71
-21-71
-21-71
-21-71
-21-71
-23-71
-23-71
-23-71
-23-71
-23-71
-26-71
-27-71
-27-71
-28-71
-28-71
-29-71
-29-71
-30-71
-30-71
100 -30-71
Truck
No.
93
105
106
122
311
313
315
316
317
253
254
391
392
582
581
251
252
360
5133
5140
5097
5106
5130
5135
M-78
M-80
M-98
SH-680
SH-699
1029
134
135
239
240
250
L-41
M-77
M-87
M-90
M-95
2179
2120
27
2073
2121
4T1
4T16
1T22
2T9
2T12
Vehicle
Source Year
Pearl 1970
Pearl 1970
Pearl 1970
Pearl 1970
C.W.B. 1970
C.W B. 1970
C.W.B 1970
C.W B. 1970
C.W-B 197ff
C W B. 1970
C W. B. 1970
C.W.B 1970
C. W B. 1970
Red Arrowl970
Red Arrowl970
C.W.B. 1970
C.W.B. 1970
C.W.B. 1970
C.P.S.B. 1970
C P.S. B. 1970
C. P.S. B. 1971
C P.S. B. 1971
C.P.S.B. 1970
C. P.S B. 1970
State Hoip>970
Slate Hospl970
State Hoip!970
State Ho»pl970
State Hospl970
Lone Star 1970
Herder 1970
Herder 1970
Herder 1970
Herder 1970
C.W.B. 1970
State Hoapl970
State Ho«pl970
State Ho£pl970
State Ho>pl970
State Hoapl970
City PfcR 1970
City PS.R 1970
B. M W. 1970
City PS.R 1970
City PUR 1970
B.C.R.D. 1970
B. C.R.D. 1970
B.C.R.0. 1970
B.C.R.D. 1970
B.C.R.D. 1970
Engine
Make
WC
CMC
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Dodge
Dodge
Dodge
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
IHC
Dodge
Dodge
Dodge
Ford
CMC
Chevrolet
Ford
Ford
Ford
Ford
Chevrolet
Dodge
Dodge
Dodge
Dodge
Dodge
IHC
Ford
Ford
Chevrolet
Ford
Ford
Ford
Ford
Ford
Ford
CID
304
292
318
300
304
304
304
304
304
307
307
366
366
318
318
319
318
361
392
392
345
345
392
392
225
225
225
302
401
307
300
300
361
361
307
225
225
225
225
225
345
360
360
292
360
240
240
330
330
330
Cyl.
V8
6
V8
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
6
V8
V6
V8
6
6
V8
V8
V8
6
6
6
6
6
V8
V8
V8
6
V8
6
6
V8
V8
V8
Tr
ins
Speeds'
3
3
3
3
4
4
4
4
4
4
4
5
5
4
^
3
3
5
6
6
5
5
6
6
4
4
4
3
5
4
5
5
5
5
2
3
3
3
3
3
4
4
4
3
4
3
3
5
4
4
auto
auto
auto
auto
auto
auto
auto
auto
au o
au o
au o
au o
au o
auto
GVW
Ibs.
7.500
7.500
7.500
7.500
19, 700
19.700
19. 700
19.700
19. 700
7,500
7,500
32,000
32,000
24.000
24,000
7,500
7.500
25,500
25,500
25,500
25,000
25,000
25,500
25,500
7,500
7,500
7.5QO
6,800
27.0PO
6,600
21,000
21,000
22, OQO
22,000
7,500
10,000
10,000
7,500
10,000
10,000
19,000
8,300
7,500
14,000
8,300
7,500
7.500
21,000
21,000
21,000
Vehicle
Tv°e -
Delivery
Delivery
Delivery
Delivery
Service
Service
Service
Service
Service
Service
Service
Crane
Crane
Freight
Freight
Meter
Service
Dump
Line
L-.ie
Digger
Digger
Line
Line
Pickup
Pickup
Pickup
Van
BUB
Delivery
Freight
Freight
Freight
Freight
Service
Laundry
Grounds
Service
Maintenance
Grounds
Water Truck
Maintenance
Repair
Maintenance
Maintenance
Maintenance
Welder
Water Truck
Water Truck
Water Truck
Initial
Mileage
11,034
15.944
a, 504
16, 143
3, 729
4. 938
2,812
1,522
3,320
2, 056
5.031
687
990
14. 520
10,656
6,025
4,9«1
8.094
32
30
456
464
45
287
5,963
1,791
2,019
1,442
838
26,622
16,201
11, 190
10,511
13,920
18.225
2, 568
1,985
4,875
3,274
201
219
2,948
7,553
1,770
2,262
13. 174
9. 762
15,424
12,301
9,339
*Hi-ix> means two-speed rear axle.
A-4
-------
TABLE A-2 (Cont'd). DESCRIPTION OF SURVEILLANCE FLEET
Unit
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
11B
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
Date
Tested
1-30-71
2-3-71
2-3-71
2-4-71
2-4-71
2-5-71
2-5-71
2-8-71
2-8-71
2-9-71
2-9-71
2-10-71
2-11-71
2-12-71
2-12-71
2-16-71
2-18-71
2-18-71
2-19-71
2-19-71
2-20-71
2-20-71
2-20-71
2-21-71
3-9-71
3-H-71
4-24-71
4-6-71
4-7-71
4-12-71
4-22-71
4-23-71
4-23-71
4-27-71
4-27-71
4-27-71
4-28-71
4-28-71
4-28^71
4-29-71
4-24-71
5-18-71
5-18-71
5-19-71
5-21-71
5-24-71
5-24-71
5-24-71
6-11-71
6-11-71
Truck
No.
4T23
7
34
2085
2122
2119
2123
2168
2169
2081
2082
2170
51346
51375
51383
4364
16
043247
043144
043327
98
101
102
105
043221
042519
1085
1086
1088
1353
1347
1355
1340
1318
1345
/34
-------
TABLE A-3. GASOLINE SURVEILLANCE FLEET MAKE AND CID CATEGORIES
(ENGINE MODEL GROUPINGS)
I
o^
No. of
ategury Vehicles Make CID
1 4 1970 Chevrolet 250
2 2 1970 Chevrolet 292
3 1 1 1970 Chevrolet 307
Cyl.
6
6
6
V8
V8
V8
V8
Source
C.P.S.B.
C.P.S.B.
City P & R
C.W.B.
Lone Star
City P & R
City P & R
GVW
7, 500
9, 000
14, 000
7, 500
6, 600
7, 500
10, 000
31,
30
94
60,
80
104
108
Unit Numbers
32, 36, 37
61, 85
, 107, 110, 111
, 109, 112
5
6
2
2
15
1971 Chevrolet 350
1970 Chevrolet 366
1970 CMC 427
1971 Chevrolet 427
1970 Dodge 225
1970 Dodge 318
V8 JFC
V8 C.W.B.
V8 Southern
V8 Southern
6 State Hospital
6 State Hospital
V8 P.O.D.
V8 Pearl
V8 C.W.B.
V8 P.O.D.
V8 Red Arrow
24,000 145, 146, 147, 148,
149, 150, 152
32, 000 62, 63
32,500 103
32,500 151
7, 500 75, 76, 77 88
10, 000 86, 87, 89, 90
7,000 118, 119, 120, 125,
126
7, 500 53
7,500 66, 67
10,000 1, 2, 3, 4, 5,
24, 000 64, 65
1970 Ford
240
6
6
Hertz
B.C.R.D.
7, 500
7, 500
21
96, 97
-------
TABLE A-3 (Cont'd). GASOLINE SURVEILLANCE FLEET MAKE AND CID CATEGORIES
(ENGINE MODEL GROUPINGS)
No. of
Category Vehicles Make
10 17 1970 Ford
1971 Ford
11 1 1970 Ford
> 12 4 1970 Ford
i
"^ 13 5 1970 Ford
14 3 1970 Ford
15 4 1971 Ford
16 5 1970 CMC
17 2 1970 CMC
CID
300
300
302
330
360
361
391
292
350
Cyl.
6
6
6
6
6
6
V8
V8
V8
V8
V8
V8
V8
V8
6
6
V8
V8
Source
Pearl
Hertz
C.P.S.B.
C.P.S.B.
Herder
Brown Exp.
State Hospital
B. C.R.D.
B.M. W.
B.M. W.
City P & R
Herder
C.W.B.
Lone Star
Pearl
Facs
Elmore
Elmore
GVW
7, 500
10, 000
10, 000
16, 000
21, 000
24, 000
6, 800
21, 000
6, 100
7, 500
8,300
22, 000
25, 500
27, 500
7, 500
10, 000
10, 000
14, 000
Unit Numbers
54
20
27, 28, 42, 44
29, 39, 40, 41, 43, 45
81 / 82
33, 34, 35
78
98, 99, 100, 101
102
93
92, 95, 106
83, 84
68
127, 128, 129, 141
52
121, 122, 123, 124
117
116
18
1970 CMC
401
V6
State Hospital 27, 000
79
-------
TABLE A-3 (Cont'd).
GASOLINE SURVEILLANCE FLEET MAKE AND CID CATEGORIES
(ENGINE MODEL GROUPINGS)
oo
No. of
Category Vehicles Make CID Cyl.
19 13 1970 IHC 304 V8
V8
V8
V8
V8
1971 IHC 304 V8
20 8 1970 IHC 345 V8
V8
V8
1971 IHC 345 V8
21 23 1970 IHC 392 V8
V8
1971 IHC 392 V8
V8
V8
22 7 1970 IHC 478 V8
1971 IHC 478 V8
Source
Pearl
C.W.B.
C.P.S.B.
C.P.S.B.
C.W.B.
C.P.S.B.
City P & R
N.S.S.D.
N.S.S.D.
C.P.S.B.
C.P.S.B.
City P & R
C.P.S.B.
C.P.S.B.
S.A.P.W.
Ryder
ABC
GVW
7, 500
10,000
14, 000
19, 700
19, 700
14, 000
19, 000
22, 000
25, 500
25, 000
25,500
25, 500
24, 000
25, 500
34, 000
32,000
32,000
Unit Numbers
51
49, 50
38
46
47, 48, 55, 56, 57,
58, 59
26
91
18, 19
15, 16, 17
71, 72
23, 69, 70, 73, 74
105
113
22, 24, 25, 114, 115
130, 131, 132, 133,
134, 135, 136, 137,
138, 139, 140
11, 12, 13, 14
142, 143, 144
23
1970 White
400
ABC
30,000
6, 7, 8, 9, 10
152 Total
-------
TABLE A-4. DEFINITIONS AND UNIT NUMBERS FOR VARIABLES USED
IN SURVEILLANCE FLEET STATISTICAL ANALYSIS
A. Automatic Transmission versus Conventional
44 Automatic Units: Nos. 1, 2, 3, 4, 5, 20, 21, 22, 23, 24, 25, 66,
67, 69, 70, 73, 74, 78, 85, 86, 87, 88, 89, 90, 94, 113,
114, 115, 118, 119, 120, 125, 126, 130, 131, 132, 133,
134, 135, 136, 137, 138, 139, and 140.
Remaining units are conventional shift transmissions.
B. Type of Application
26 Stop and Go Units: Nos. 1, 2, 3, 4, 5, 15, 16, 17, 18, 19, 118,
119, 120, 125, 126, 130, 131, 132, 133, 134, 135, 136,
137, 138, 139, 140.
22 Line-Haul Tractors: Nos. 6, 7, 8, 9, 10, 11, 12, 13, 14, 79,
103, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151,
152
26 Freight and Related Delivery: Nos. 20, 21, 33, 34, 35, 51, 52,
53, 54, 64, 65, 80, 81, 82, 83, 84, 116, 117, 121, 122,
123, 124, 127, 128, 129, 141
25 Large Service Trucks (24, 000-lb GVW and Above): Nos. 22, 23,
24, 25, 42, 44, 49, 50, 62, 63, 68, 69, 70, 71, 72, 73
74, 98, 99, 100, 101, 105, 113, H4, 115.
20 Medium Service Trucks (Greater than 10, 000 but less than 24, 000 GVW):
Nos. 26, 27, 28, 29, 38, 39, 40, 41, 43, 45, 46, 47, 48,
55, 56, 57, 58, 59, 91, 94.
33 Small Service Trucks (10, 000-lb and less): Nos. 30, 31, 32, 36,
37, 60, 61, 66, 67, 75, 76, 77, 78, 85, 86, 87, 88, 89,
90, 92, 93, 95, 96, 97, 102, 104, 106, 107, 108, 109,
110, 111, 112.
A-9
-------
ABLE A-4 (Cont'd). DEFINITIONS AND UNIT NUMBERS FOR VARIABLES USED
IN SURVEILLANCE FLEET STATISTICAL ANALYSIS
C Gross Vehicle Weight
62 Large Trucks (24, 000-lb and above): Nos. 6, 7, 8, 9, 10, 11,
12, 13, 14, 15, 16, 17, 22, 23, 24, 25, 33, 34, 35, 62,
63, 64, 65, 68, 69, 70, 71, 72, 73, 74, 79, 103, 105,
113, 114, 115, 127, 128, 129, 130, 131, 132, 133, 134,
135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145,
146, 147, 148, 149, 150, 151, 152.
58 Medium Trucks (Greater than 10, 000 but less than 24, 000-lb):
Nos. 1, 2, 3, 4, 5, 18, 19, 20, 26, 27, 28, 29, 38, 39,
40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 55, 56, 57,
58, 59, 81, 82, 83, 84, 86, 87, 89, 90, 91, 94, 98, 99,
100, 101, 108, 109, 112, 116, 117, 118, 119, 120, 121,
122, 123. 124, 125, 126.
32 Small Trucks (Less than 10, 000 but greater than 6, 000-lb):
Nos, 21, 30, 31, 32, 36, 37, 51. 52, 53, 54, 60, 6l, 66,
67, 75, 76, 77, 78, 80, 85, 88, 92, 93, 95, 96, 97, 102,
104, 106, 107, 110, 111.
D. Vehicle Mileage at Start of Test (Zero Month)
50 Units with 0-499 miles: Nos. 1, 2, 3, 4, 5, 11, 12, 22, 23, 24, 25,
26, 27, 28, 33, 34, 35, 41, 42, 69, 70, 71, 72, 73, 74, 90,
91, 113, 114, 115, 118, 119, 120, 125, 128, 129, 130, 131,
132, 133, 134, 135, 136, 137, 138, 139, 140, 145, 147, 148.
47 Units with 500-3499 miles: Nos. 13, 14, 29, 31, 32, 36, 37, 38, 39,
40, 43, 44, 45, 46, 49, 57, 58, 59, 60, 62, 63, 76, 77, 78,
79, 86, 87, 89, 92, 94, 95, 103, 105, 106, 107, 108, 109,
124, 126, 127, 141, 143, 144, 146, 149, 150, 152.
35 Units with 3500-9, 999 miles: Nos. 6, 7, 8, 9, 10, 15, 16, 17, 18,
19, 20, 21, 30, 47, 48, 50, 53, 55, 56, 6l, 66, 67, 68,
75, 88, 93, 97, 100, 110, 111, 121, 122, 123, 142, 151.
20 Units with 10, 000 miles and above: Nos. 51, 52, 54, 64, 65, 80, 81,
82, 83, 84, 85, 96, 98, 99, 101, 102, 104, 112, 116, 117.
A-10
-------
TABLE A-5. MAINTENANCE CATEGORIES
Category
Above Average
Maintenance
Average Maintenance
Number of Trucks
in Category
58
51
Below Average
Maintenance
39
Unit Numbers
1-10, 15-19, 22-32,
36-46, 51-54, 69-74,
113-115, 118-120, 125,
126, 142-144
11-14, 20, 21, 47-49,
50, 55-63, 66-68, 75-
79, 86-95, 102, 104-
112, 121-124
64, 65, 80-84, 96-101,
103, 116, 117, 127-141,
145-152
A-ll
-------
APPENDIX B
CORRELATION GROUP
DATA SUMMARY FOR INDIVIDUAL, TRUCKS
-------
9 MODE FEDERAL CYCLE
TABLE B-l. STATIONARY-CHASSIS DYNAMOMETER EMISSION TEST RESULTS
Correlation Truck No. 1
Engine: Ford 300 CID, 6 Cyl.
Vehicle: 1970 Ford, 10, 000-lb GVW Stake
Date
Test
Dynamometer
8-5-71
8-6-71
8-6-71
8-11-71
8-11 71
8-11-71
1
1
2
Average
Spread: (
1
2
3
Average
Max-Min ,
Avg '
Chassis
ii
1 1
Max-Min
) X 100
) X 100
Average
Average Chassis
Difference *
Percent Difference **
HC
ppm n Hex
156
165
161
161
5.6%
182
179
184
182
2.8%
161
182
21
13
CO
%
1.41
1.36
1.43
1.40
5.0%
1.04
1.07
1.09
1.07
4.7%
1.40
1.07
-0.33
-23.6
NO,
Obs
2078
2067
2084
2076
0.8%
1716
1807
1719
1747
5.2%
2076
1747
-329
-15.9
ppm
Corr
2319
2276
2294
2296
1.9%
1704
1794
1707
1735
5.2%
2296
1735
-561
-24.5
*( Chassis Stationary)
**(Chassis Stationary)^ Stationary X 100
B-2
-------
TABLE B-2. STATIONARY-CHASSIS DYNAMOMETER EMISSION TEST RESULTS
Correlation Truck No. 2
Engine: Ford 240 CID, 6 cyl.
Vehicle: 1970 Ford, 7, 500-lb GVW Pickup
Date Test Dynamometer
8-24-71
8-25-71
8-26-71
8-26-71
Averag
Spread:
9-2-71
9-2-71
9-2-71
Averag
Spread:
9-21-71
9-21-71
9-21-71
Averag
Spread:
9-27-71
9-27-71
9-27-71
Averag
Spread:
2 Chassis
3 "
1 "
2 "
e
Max-Min
( Avg ) X 100
1 Stationary
2 "
3
e
Max-Min
< Avg > X 10°
1 Stationary
2 "
3 "
e
Max-Min
( Avg ' X 100
2 Chassis
3 "
4
e
, Max-Min
* Avg '
Average Stationary
Average Chassis
Difference *
Percent Difference **
HC
ppm n. Hex.
182
175
174
177
177
4.5%
157
152
140
150
11.3%
139
139
143
140
2.9%
169
165
168
167
2.3%
143
172
29
20.3
CO
.626
. 707
.662
.631
.657
12.3%
.560
. 464
.423
. 482
28.4%
.456
.454
.510
.473
11.8%
.629
.663
.635
.642
5.3%
.478
.650
.172
36.0
NO,
Obs.
1966
1797
1979
1958
1925
9.4%
1227
1394
1373
1331
12.5%
1653
1648
1669
1657
1 . 3%
1464
1366
1394
1408
7.0%
1494
1703
209
14.0
ppm
Corr.
1952
1763
1987
1966
1917
11.7%
1384
1572
1549
1502
12.5%
1685
1694
1715
1698
1.8%
1480
1381
1409
1423
7.0%
1600
1705
105
6.6
*(Chassis - Stationary
*#(Chassis - Stationary) -4 Stationary X 100
B-3
-------
TABLE B-3. STATIONARY-CHASSIS DYNAMOMETER EMISSION TEST RESULTS
Correlation Truck No. 3
Engine: Dodge 318 CID V8
Vehicle: 1969 Dodge , 23, 000 Ib GVW
Stake
Date
Test
Dynamometer
10-12-71 1
10-12-71 2
10-12-71 4
Average
Spread
10-19-71 2
10-20-71 1
10-20-71 2
10-20-71 3
Average
Snrpad
Chassis
,,
/Max- Minx y
Avg
Stationary
"
"
( x~ ..1:n \ Y
100
HC
ppm n
310
279
290
293
10.
. Hex.
6%
CO
%
3.319
3.243
3. 335
3.306
3.4%
NO,
Obs.
1624
1625
1696
1648
4.4%
ppm
Corr.
1556
1557
1625
1579
4.4%
100
308
294
296
288
297
6.7%
4. 741
4.437
4. 353
4. 183
4.429
12.6%
1338
1525
1728
1716
1577
24. 7%
1513
1429
1662
1665
1567
15. 1%
Average Stationary
Average Chassis
Difference*
Percent Difference**
297
293
4
1. 3
4.429
3. 306
1. 123
25. 3
1577
1648
71
4. 5
1567
1579
12
0. 8
*( Chassis - Stationary)
**(Chassis - Stationary) ~ Stationary X
100
B-4
-------
TABLE B-4.
STATIONARY-CHASSIS DYNAMOMETER EMISSION TEST RESULTS
Correlation Truck No. 4
Engine: White 400 CID, 6 Cyl.
Vehicle: 1970 White, 30, 000-lb GVW
Tractor
Date
11-23-71
11-23-71
11-23-71
11-23-71
11-8-71
11-9-71
11-9-71
Test Dynamometer
1 Stationary
2 Stationary
3 Stationary
4 Stationary
Average
Soread ( Max-Min^ *-
Avg
2 Chassis
1 Chassis
2 Chassis
Average
sr,.«,r> (Max-Min. v
Avg
Average Stationary
Average Chassis
Difference*
Percent Difference**
HC
ppm n. Hex.
157
163
169
161
163
100 7.4%
206
204
211
207
100 3. 4%
163
207
+ 44
+27. 0
CO
_%
1.74
1. 73
1.66
1.66
1.70
4.7%
2.38
2.39
2.48
2.41
4. 0%
1.70
2.41
+ 0.71
+ 41.8
NO, ppm
Obs.
161.4
1647
1583
1651
1624
4.2%
1792
1577
1747
1705
12.6%
1624
1705
+ 81
+5.0
Corr.
1456
1486
1450
1506
1475
3.8%
1641
1511
1680
1611
10.4%
1475
1611
+ 136
+9.2
^(Chassis Stationary)
#*(Chassis - Stationary) -f- Stationary X 100
B-5
-------
TABLE B-5. STATIONARY-CHASSIS DYNAMOMETER EMISSION TEST RESULTS
Correlation Truck No. 5
Engine: Ford 330 CID V8
Vehicle: 1971 Ford 23, 000 Ib. GVW
Van
Date
12/6/71
12/6/71
12/6/71
11/11/71
11/11/71
11/11/71
Test Dynamometer
1 Stationary
2 Stationary
3 Stationary
Average
Spread, Max- Min x X 100
' A '
Avg
1 Chassis
2 Chassis
3 Chassis
Average
Spread Max-Min X 100
Average Stationary
Average Chassis
Difference*
Percent Difference"-*
HC
ppm n. Hex.
188
191
186
188
2.6%
225
213
216
218
5.5%
188
216
+ 28
+ 15. 0
CO
%
1.121
1.293
1.114
1.176
14.6%
1.061
1.006
1.045
1.037
5.3%
1. 176
1. 037
-.139
-11. 8
NO.ppm
Obs. Corr.
1306
1273
1393
1324
9.1%
1414
1441
1454
1436
2. 7%
1324
1436
+ 112
+ 8.4
1117
1088
1185
1130
8.6%
1290
1326
1338
1318
3.6%
1130
1318
188
16.6
* (Chassis-Stationary)
** iChassis-Stationary)
Stationary X 100
B-6
-------
TABLE B-6. STATIONARY-CHASSIS DYNAMOMETER EMISSION TEST RESULTS
Correlation Truck No. 6
Engine: Chevrolet 350 CID V8 Vehicle: 1970 Chevrolet 18, 000 Ib. GVW
Van
CO
NO, ppm
Date
12/10/71
12/10/71
12/10/71
Test Dynamometer ppm n. Hex %
1 Stationary
2 Stationary
3 Stationary
Average
Spread. Max- Min.X 100
125
131
130
129
4.7%
1. 782
1. 788
1. 753
1.774
2.0%
Obs.
926
912
940
926
3.0%
Corr.
806
847
781
811
8.1%
Avg
11/23/71 1 Chassis
11/24/71 1 Chassis
11/24/71 2 Chassis
Average
Spread Max-Min X 100
< Avg )
Average Stationary
Average Chassis
Difference*
Percent Difference**
130
129
130
130
0.8%
2.020
1.940
2.009
1.990
4.0%
872
880
856
869
2.8%
759
770
732
754
5.0£
129 1.774 926 811
130 1.990 869 754
1 .216 57 -57
.8% 12.2% -6.1% -7.0%
* (Chassis-Stationary)
** (Chassis-Stationary) -t-
Stationary X 100
B-7
-------
TABLE B-7 STATIONARY-CHASSIS DYNAMOMETER EMISSION TEST RESULTS
Correlation Truck No. 7
Engine: IHC 345 CID
Vehicle: 1970, 16, 000-lb GVW Van
Date
1/4/72
1/4/72
1/4//2
Test
Dynamometer
1 Stationary
2 Stationary
3 Stationary
Average
Spr^ari /Max-Minx x 100
HC
ppm n. Hex.
273
253
244
257
11.3%
CO
1. 714
1. 545
1. 585
1. 614
10. 5%
NO,
Obs.
2900
2849
2819
2856
2.8%
ppm
Corr.
2276
2295
2165
2245
5.8%
Avg
12/16/71
12/16/71
12/16/71
1
2
3
Chassis
Chassis
Chassis
Average
_ , , Max-Min .
Spread ( - )
Avg
100
209
205
209
208
1.9%
2. 075
2. 016
2. 134
2.075
3. 5%
2359
2369
2296
2341
3. 1%
2140
2229
2252
2207
5. 1%
Average Stationary
Average Chassis
Difference*
Percent Difference**
257
208
-49
-19. 1
1.614
2. 075
0.461
28.6
2856
2341
-515
-21.9
2245
2207
-38
-1. 7
*(Chassis -Stationary)
**(Chassis-Stationary) -= Stationary X 100
B-8
-------
TABLE B-8.
STATIONARY-CHASSIS DYNAMOMETER EMISSION TEST RESULTS
Correlation Truck No. 8
Engine: IHC 478 CID, V-8
Vehicle: 1971 IHC 32, 000-lb GVW
Tractor
Date
1/19/72
1/19/72
Test
Dynamometer
1 Stationary
2 Stationary
Average
Spread (Max"Min) X 100
Avg
HC
ppm n. Hex.
218
209
214
4.2%
CO
1.576
1. 571
1. 574
0.3%
NO, ppm
Obs.
1629
1593
1611
2. 2%
Corr.
1691
1679
1685
0. 7%
12/30/71
12/30/71
3
4
Chassis
Chassis
Average
(Max-Mm} x 10Q
Avg
231
223
227
3.5%
1.394
1.404
1.399
0.7%
1731
1627
1679
6.2%
1438
1352
1395
6.2%
Average Stationary
Average Chassis
Difference*
Percent Difference**
214
227
13
6. 1
1.574
1. 399
-. 175
-11. 1
1611
1679
68
4.22
1685
1395
-290
-17.2
*(Chassis-Stationary)
**(Chassis-Stationary) -r- Stationary X 100
B-9
-------
TABLE B-9. STATIONARY-CHASSIS DYNAMOMETER EMISSION TEST RESULTS
Correlation Truck No. 9
Engine: Chevy 292 CID, 6 cyl.
Vehicle: 1970 14, 000-lb GVW
Step-in Van
Date
1/25/72
1/25/72
Test Dynamometer
1 Stationary
2 Stationary
Average
,-. , ,Max-Min \-v-
Spread ( ) X
Avg
HC
ppm n. Hex.
182
190
186
4. 3%
CO
%
.979
1. 040
1. 010
6.0%
NO, ppm
Obs. Corr.
3486
3527
2879
2786
3506 2833
1.16% 3.28%
1/21/72
1/21/72
1
2
Chassis
Chassis
Average
,, , / Max-Min ..,,__
Spread ( ) X 100
Avg
162
161
161. 5
0.6%
.913
. 810
. 901
11.4%
3518
3469
3494
1.4%
3148
3049
3099
3. 19%
Average Stationary
Average Chassis
Difference*
Percent Difference**
186
162
-24
12.9
1. 010
.910
-. 100
-9.9
3506
3494
-22
-0.6
2833
3099
266
9. 38
*(Chassis -Stationary)
**(Chassis -Stationary)
Stationary X 100
B-10
-------
TABLE B-10. STATIONARY-CHASSIS DYNAMOMETER EMISSION TEST RESULTS
Correlation Truck No. 10
Engine: IHC 392 CID V8
Vehicle: 1971 IHC 26,000-lb GVW
Power Line Maintenance Truck
Date
2/7/72
2/7/72
2/7/72
Spread
2/1/72
2/1/72
2/1/72
Spread
Average
Average
Differen
Percent
Test
1
2
4
Max-Min
Avg
1
2
3
Max-Min
Avg
Stationary
Chassis
ce*
Difference5*
Dynamometer
Stationary
Stationary
Stationary
Average
x 100
Chassis
Chassis
Chassis
Average
x 100
t*
HC
ppm n. Hex.
192
206
213
204
10.3%
259
244
233
245
10.6%
204
245
41
20. 1
CO
1.
1.
1.
24
41
37
1.34
12.9%
1.43
1.4Q
1.48
1.
5.
1.
1.
0.
7.
44
7%
34
44
10
3
NO, ppm
Obs.
1527
1673
1558
1586
9.2%
(1)
1487
1472
1479
1.0%
1586
1479
-107
-6.7
Corr.
1206
1322
1231
1253
9.3%
1258
1245
1252
1.0%
1253
1252
-1
-0. 1
#Chassis-Stationary
**(Chassis-Stationary) -4- Stationary X 100
( ^Instrumentation Malfunction.
B-ll
-------
APPENDIX C
FEDERAL, TEST PROCEDURE FOR
EXHAUST EMISSION TESTS OF
HEAVY DUTY GASOLINE POWERED TRUCKS
(Excerpted from November 10, 1970, Federal Register)
-------
H
VOLUME 35 NUMBER 219
Tuesday, November 10, 1970 Washington, B.C.
PART II
Department of Health,
Education, and Welfare
Office of the Secretary
Control of Air Pollution From New
Motor Vehicles and New Motor
Vehicle Engines
No. 31»Pt. II
C-2
-------
RULES AND REGULATIONS
17289
(4) "Gross vehicle weight" means the
manufacturer's gross weight rating.
(5) "Light duty vehicle" means any
motor vehicle either desiened primarily
for transportation of property and rated
at 6,000 pounds GVW or less or designed
primarily for transportation of persons
nnd having a capacity of 12 persons or
less.
(6) "Heavy duty vehicle" means any
motor vehicle either designed primarily
for transportation of property and rated
at more than 6,000 pounds GVW or de-
signed primarily for transportation of
persons and having a capacity of more
than 12 persons.
(7) "Heavy duty engine" means any
engine which the engine manufacturer
could reasonably expect to be used for
motive power in a heavy duty vehicle.
(8) "Off-road utility vehicle" means
a light duty vehicle which incorporates
special features for off-road operation
such as four-wheel drive.
(9) "Motorcycle" means any light duty
vehicle having a seat or saddle for the
use of the rider and designed to travel on
not more than three wheels (including
any tricycle arrangement) in contact
with the ground and weighing less than
1,500 pounds.
(10) "Vehicle curb weight" means the
actual or the manufacturer's estimated
weight of the vehicle in operational
status with all standard equipment, and
weight of fuel at nominal tank capacity.
and the weight of optional equipment
computed in accordance with 5 85.89 (g).
(11) "Loaded vehicle weight" means
the vehicle curb weight of a light duty
vehicle plus 300 pounds.
(12) "System" includes any motor
vehicle engine modification which con-
trols or causes the reduction of sub-
stances emitted from motor vehicles or
motor vehicle engines.
(13) "Engine family" means the basic
classification unit of a manufacturer's
product line used for the purpose of test
fleet selection and determined in ac-
cordance with § &5.89(a).
(14) "Engine-system combination"
means an engine family-exhaust emis-
sion control system-fuel evaporative
emission control system (where appli-
cable) combination.
(15) "Fuel system" means the com-
bination of fuel tank, fuel pump, fuel
lines, and carburetor, or fuel Injection
components, and includes all fuel system
vents and fuel evaporative emission con-
trol systems.
(16) "Crankcase emissions" means
airborne substances emitted to the at-
mosphere from any portion of the crank-
case ventilation or lubrication systems.
(17) "Exhaust emissions" means sub-
stances emitted to the atmosphere from
any opening downstream from the ex-
haust port of a motor vehicle engine.
(18) "Fuel evaporative emissions"
means vaporized fuel emitted into the
atmosphere from the fuel system of a
motor vehicle.
(19) "Smoke" means the matter in
exhaust emissions which obscures the
transmission of light.
(20) "Hot soak loss" means fuel evap-
orative emissions during the 1-hour hot
soak period which begins immediately
after the engine is turned off.
(21) "Diurnal breathing loss" means
fuel evaporative emissions as a result
of the daily range in temperature to
which the fuel system is exposed.
(22) "Running loss" means fuel evap-
orative emissions resulting from an
average trip in an urban area or the
simulation of such a trip.
(23) "Tank fuel volume" means the
volume of fuel in the fuel tank, pre-
scribed to be 40 percent of nominal tank
capacity rounded to the nearest whole
U.S. gallon.
(24) "Maximum rated horsepower"
means the maximum brake horsepower
output of an engine as stated by the
manufacturer in his sales and service
literature and his application for certi-
fication under 5 85.51.
(25) "Bated speed" means the speed
at which the manufacturer specifies the
maximum rated horsepower of an engine.
(26) "Maximum rated torque" means
the maximum torque produced by an
engine as stated by the manufacturer
in his sales and service literature and his
application for certification under §85.51.
(27) "Opacity" means the fraction of
a beam of light, expressed in percent,
which fails to penetrate a plume of
smoke.
(28) Zero (0) miles means that point
after initial engine starting (not to ex-
ceed 10 miles of vehicle operation) at
which adjustments are completed.
(29) Zero (0) hours means that point
after initial engine starting (not to ex-
ceed 1 hour of engine operation) at which
adjustments are completed.
(30) "Calibrating gas" means a gas
of known concentration which is used to
establish the response curve of an
analyzer.
(31) "Span gas" means a gas of known
concentration which is used routinely
to set the output of an analyzer.
§ 85.2 Abbreviations.
The abbreviations used In this part
have the following meanings in both
capital and lower case:
Accel.Acceleration.
ASTMAmerican Society tor Testing and
Materials.
BHPBrake Horsepower.
C.f.h.Cubic feet per hour.
CO2Carbon Dioxide.
COCarbon Monoxide.
Cone.Concentration.
CTClosed Throttle.
C.f.m.Cubic feet per minute.
Cu.ln.Cubic Inch (eg).
Decel.Deceleration.
EPEnd Point.
Evap.Evaporated.
F.Fahrenheit.
FLFull Load.
Gal.U.S. Gallon(3).
Gm.Gram(s).
GVWGross Vehicle Weight.
HCHydrocorbon(a).
HgMercury.
HI.High.
HP.Horsepower.
IBPInitial Boiling Point.
IDInternal Diameter.
Lb.Pouncl(s).
Lb.-It.Pound-feet.
Max.Maximum.
Min.Minimum; also minute (a),
Ml.MllllUter(s).
M.p.h.Miles per hour.
Mm.MllUmetcr(s).
Mv.Milllvolt(6).
NsNitrogen.
No.Number.
PbLead.
P.p.m.Parts per million by volume.
P.s.l.Pounds per square Inch.
P.s.l.g.Pounds per square Inch gauge.
PTAPart Throttle Accel.
PTDPart Throttle Decel.
BRanklne.
R.pjn.Revolutions per minute.
RSRated Speed.
RVPReid Vapor Pressure.
S.A.E.Society of Automotive Engineers.
Sec.Second (s).
Sp.-Speed.
SSStainless Steel.
TTorque.
TELTetraethyl Lead.
TMLTetramethyl Lead.
V.Volts.
Vs.Versus.
WOTWide Open Throttle.
Wt.Weight.
Feet.
"Inches.
Degrees.
%Percent.
§ 85.3 General standards: increase in
emissions; unsafe conditions.
(a) (1) Every new motor vehicle or
new motor vehicle engine manufactured
for sale, sold, offered for sale, introduced
or delivered for introduction into com-
merce, or imported into the United States
for sale or resale which is subject to any
of the standards prescribed in this part
shall be covered by a certificate of con-
formity issued pursuant to Subpart P of
this part.
(2) No heavy duty vehicle manufac-
turer shall take any of the actions speci-
fied in section 203(a) (1) of the Act with
respect to any gasoline fueled or diesel
powered heavy duty vehicle which uses
an engine which has not been certified
as meeting applicable standards. Such
manufacturer shall provide to the Secre-
tary prior to the beginning of each model
year a statement signed by an authorized
representative which includes the follow-
ing information:
(i) A description of the vehicles which
will be produced subject to this section;
(ii) Identification of the engines used
in the vehicles;
(lii) Projected sales data on each ve-
hicle-engine combination;
(iv) A statement that the engines will
not be modified by the vehicle manu-
facturer or a detailed specification of any
changes which will be made. Changes
made solely for the purpose of mounting
an engine in a vehicle need not be in-
cluded.
(b) (1) Any system installed on or in-
corporated in a new motor vehicle or new
motor vehicle engine to enable such ve-
hicle to conform to standards imposed
by this part:
(i) Shall not in its operation or func-
tion cause the emission into the ambient
air of any noxious or toxic substance that
would not be emitted hi the operation of
FEDERAL REGISTER, VOL. 35, NO. 219TUESDAY. NOVEMBER 10, 1970
C-3
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KULEb AND REGULATIONS
Mich vi-hlclc or engine without such sys-
tem, except as specillcally permitted by
rrc.ulnlion; and
(ii) Shall not In its operation, func-
tion, or malfunction result in any unsafe
condition endangering the motor vehicle.
Its occupants, or persons or property in
close proximity to the vehicle.
(2) Every manufacturer of new motor
vehicles or new motor vehicle engines
subject to any of the standards Imposed
by this part shall, prior to taking any of
the actions specified in section 203(a) (1)
of the Act. test or cause to be tested mo-
tor vehicles or motor vehicle engines In
accordance with good engineering prac-
tice to ascertain that such test vehicles
or engines will meet the requirements of
this section for the lifetime of the vehicle
or engine as defined in § 85.92. { 85.113.
or S 85.133, as appropriate.
§ 85.4 Lnheling.
(a) (1) The manufacturer of any light
duty motor vehicle subject to any of the
standards prescribed in this part shall,
at the time of manufacture, affix a per-
manent, legible label, of the type and in
the manner described below, containing
the information hereinafter provided, to
all production models of such vehicles
available for sale to the public and cov-
ered by a certificate of conformity under
} 85.55(a).
(2) A plastic or metal label shall be
welded, riveted, or otherwise per-
manently attached in a readily visible
position in the engine compartment.
(3) The label shall be affixed by the
vehicle manufacturer, who has been is-
sued the certificate of conformity for
such vehicle, in such a manner that It
cannot be removed without, destroying or
defacing the label, and shall not be af-
fixed to any equipment which is easily
detached from such vehicle.
(4) The label shall contain the follow-
ing information lettered in the English
language in block letters and numerals,
which shall be of a color that contrasts
with the background of the label:
(i) The label heading: Vehicle Emis-
sion Control Information;
(ii) Full corporate name and trade-
mark of manufacturer;
(iii) Engine displacement (in cubic
inches) and engine family identification;
(iv) Engine tuneup specifications and
adjustments, as recommended by the
manufacturer, including idle speed,
ignition timing, and the idle air-fuel
mixture setting procedure and valve (e.g.
idle CO, idle air-fuel ratio, idle speed
drop). These specifications should in-
dicate the proper transmission position
during luneup and what accessories (e.g.,
air-conditioner), If any, should be in
operation;
(v) The statement: "This Vehicle
Conforms to US. Dept. of H.E.W.
Regulations Applicable to (insert current
year) Model Year New Motor Vehicles."
(b) The manufacturer of any heavy
duty gasoline fueled engine shall, nt the
lime of manufacture, affix a permanent,
legible plastic or metal label, containing
the information hereinafter provided to
all production models of such engines
available for sale to the public, and
covered by a certificate of conformity
under $ 85.55(a). The label shall be af-
fixed at such a location that It will be
readily accessible for inspection after the
engine is installed In a vehicle and shall
read as follows:
ENGINE EMISSION CERTIFICATION
This engine Is, In all material respects, of
substantially the same construction as test
engines certified by the U.S. Department of
Health, Education, and Welfare as conform-
ing to Federal regulations pertaining to
crankcase and exhaust emissions.
Engine family Identification and engine dis-
placement (In cubic Inches) .
Date of manufacture .
(Month and year)
Name of manufacturer .
(The Information applicable to each engine
Is to be Inserted on the appropriate line.)
(c) The manufacturer of any heavy
duty diesel engine shall, at the time of
manufacture, affix a permanent, legible
plastic or metal label containing the
Information hereinafter provided to all
production models of such engines avail-
able for sale to the public, and covered
by a certificate of conformity under
§ 85.55(a). The label shall be affixed at
such a location that it will be readily
accessible for inspection after the engine
is installed in a vehicle and shall read
as follows:
ENGINE SMOKE EMISSION CERTIFICATION
This engine Is, In all material respects, of
substantially the same construction as test
engines certified by the TJ.S. Department of
Health, Education, and Welfare as conform-
ing to Federal regulations pertaining to
exhaust smoke emission.
Engine family Identification and model
Date of manufacture
(Month and year)
Name of manufacturer .
(The Information applicable to each engine
Is to be Inserted on the appropriate line.)
(d) The provisions of this section shall
not prevent a manufacturer from also
reciting on the label that such vehicle
or engine conforms to any applicable
State emission standards for new motor
vehicles or new motor vehicle engines or
any other Information that such manu-
facturer deems necessary for. or useful
to, the proper operation and satisfactory
maintenance of the vehicle or engine.
§ 85.5 Submission of vehicle identifica-
tion numbers.
(a) The manufacturer of any light
duty motor vehicle covered by a certifi-
cate of conformity under § 85.55 (a) shall,
not later than 60 days after its manufac-
ture, submit to the Secretary the vehicle
identification number of such vehicle:
Provided, That this requirement shall
not apply with respect to any vclucle
manufactured within any State, as de-
fined in section 302(d) of the Act.
(b) The requirements of this section
may be waived with respect to any manu-
facturer who provides Information satis-
factory to the Secretary which will en-
able the Secretary to identify those
vehicles or engines which are covered by
a certificate of conformity.
S 85.6 Production vehicles and engines.
(a) Any manufacturer obtaining cer-
tification under this part shall supply to
the Secretary, upon his request, a reason-
able number of production vehicles or
engines selected by the Secretary which
are representative of the engines, emis-
sion control systems, fuel systems, and
transmissions offered and typical of pro-
duction models available for sale under
the certificate. These vehicles or engines
shall be supplied for testing at such time
and place and for such reasonable periods
as the Secretary may require. Engines
supplied under this paragraph may be
required to be mounted in chassis and
appropriately equipped for operation on
a chassis dynamometer.
(b) Any manufacturer obtaining cer-
tification under this part shall notify
the Secretary, on a quarterly basis, of
the number of vehicles of each engine
family - engine displacement - exhaust
emission control system-fuel system-
transmission type-inertia weight class
combination or the number of engines of
each engine family-engine displacement-
exhaust emission control system-fuel
system combination produced for sale in
the United States during the preceding
quarter. A manufacturer may elect to
provide this information every 60 days
instead of quarterly, to combine it with
the notification required under § 85.5.
(c) All light duty vehicles covered by a
certificate of conformity under S 85.55
(a) shall be adjusted by the manufac-
turer to the ignition timing specification
detailed in § 85.4(a) (4) (iv).
§ 85.7 Emission control system opera-
tion during test.
All emission control systems installed
on or incorporated In a new motor ve-
hicle or new motor vehicle engine shall
be functioning during all test procedures
in this part.
§ 85.8 Special test procedures.
The Secretary may, on the basis of a
written application therefor by a manu-
facturer, prescribe test procedures, other
than those set forth in this part, for any
motor vehicle or motor vehicle engine
which he determines is not susceptible to
satisfactory testing by the procedures
set forth herein.
§ 85.9 Maintenance of records; Milmiil-
Inl of information; right of ciilry.
(a) The manufacturer of any new
motor vehicle or new motor vehicle en-
gine subject to any of the standards
prescribed in this part shall establish and
maintain the following adequately or-
ganized and indexed records:
(1) Identification and description of
all vehicles or engines for which testing
is required under this part.
(2) A description of all emission con-
trol systems which are installed on or
incorporated in each vehicle or engine.
(3) A description of the procedures
used to test such vehicles or engines.
(4) Test data on each emission data
vehicle or engine which will show Its
emissions at 0 and 4,000 miles or 0 and
125 hours, respectively.
FEDERAL REGISTER, VOL 35. NO. 219TUESDAY, NOVEMBER 10. 1970
C-4
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RULES AND REGULATIONS
17291
(5) Test data on each durability ve-
hicle or enfiine which will show the per-
formance of the systems installed on or
incorporated in the vehicle or engine
during extended mileace or operation,
as well as a record of all pertinent main-
tenance performed on the vehicle or
engine.
(b) The manufacturer of any new
motor vehicle or new motor vehicle en-
gine subject to any of the standards pre-
scribed in this part shall submit to the
Secretary at the time of issuance by the
manufacturer copies of all instructions
or explanations regarding the use, repair,
adjustment, maintenance, or testing of
such vehicle or engine relevant to the
control of crankcase, exhaust, or evapor-
ative emissions, issued by the manufac-
turer for use by other manufacturers,
assembly plants, distributors, dealers,
and ultimate purchasers: Provided, Th&t
any material not translated into the
English language need not be submitted
unless specifically requested by the
Secretary.
(c) The manufacturer of any new
motor vehicle or new motor vehicle en-
gine subject to any of the standards pre-
scribed in this part shall permit officers
or employees duly designated by the Sec-
retary, upon presenting appropriate cre-
dentials and a written notice to tbfi
manufacturer:
(1) To enter, at reasonable times, any
premises used during the certification
procedure for purposes of monitoring
tests and mileage accumulation proce-
dures, observing maintenance proce-
dures, and verifying correlation or cali-
bration of test equipment, or
(2) To inspect, at reasonable times,
records, files, and papers compiled by
such manufacturer In accordance with
paragraph (a) of this section.
A separate notice shall be given for each
such inspection, but a separate notice
shall not be required for each entry made
during the period covered by the inspec-
tion. Each such inspection shall be com-
menced and completed with reasonable
promptness.
Subpart BCrankcase Emissions
(Gasoline Fueled Vehicles and
Engines)
§ 85.10 Applicability.
The provisions of this subpart are ap-
plicable to all new gasoline fueled light
duty vehicles, except motorcycles, and
heavy duty engines beginning with the
1972 model year for such vehicles and
engines.
§ 85.11 Standard for crunkcase emis-
sions.
No crankcase emissions shall be dis-
charged into the ambient atmosphere
from any new motor vehicle or new motor
vehicle engine subject to this subpart.
§85.12 Tesl procedures.
Every manufacturer of new motor ve-
hicles or new motor vehicle engines sub-
ject to the standard prescribed In this
subpart shall, prior to taking any of the
actions specified in section 203(a) (1) of
the Act, test or cause to be tested motor
vehicles or motor vehicle engines In ac-
cordance with good engineering practice
to ascertain that such test vehicles or
engines, with proper maintenance, will
meet the requirements of § 85.11 for a
period not less than 100,000 miles or 3,000
hours, respectively. If, pursuant to § 85.55
(a), the Secretary issues a certificate of
conformity for the class or classes of
motor vehicles or motor vehicle engines
represented by such test vehicles or en-
gines, any new motor vehicle or motor
.vehicle engine which Is in all material
respects of substantially the same con-
struction as such test vehicle or engine
shall be deemed to be in conformity with
the requirement of § 85.11.
Subpart CExhaust Emissions and
Fuel Evaporative Emissions (Gaso-
line Fueled Light Duty Vehicles)
§ 85.20 Applicability.
The provisions of this subpart are ap-
plicable to new gasoline fueled light duty
motor vehicles beginning with the model
year specified therein, except motorcycles
and 1972 model year vehicles with an
engine displacement of less than 50 cubic
inches.
§ 85.21 Standards for exhaust emissions.
(a) Exliaust emissions from 1972,
1973, and 1974 model year vehicles shall
not exceed:
(1) Hydrocarbons3.4 grams per ve-
hicle mile.
(2) Carbon monoxide39.0 grams per
vehicle mile.
(b) The standards set forth in para-
graph (a) of this section refer to the
exhaust emitted over a driving schedule
as set forth in the applicable sections of
"Test Procedures for Vehicle Exhaust
and Fuel Evaporative Emissions (Gaso-
line Fueled Light Duty Vehicles)" of this
part and measured and calculated In
accordance with those procedures.
§ 85.22 Standard for fuel evaporative
emissions.
(a) Fuel evaporative emissions from
vehicles beginning with the 1972 model
year shall not exceed:
(1) Hydrocarbons2 grams per test.
(b) The standard set forth in para-
graph (a) of this section refers to a
composite sample of the fuel evaporative
emissions collected under the conditions
set forth in the "Test Procedures for
Vehicle Exhaust and Fuel Evaporative
Emissions (Gasoline Fueled Light Duty
Vehicles)" of this part and measured in
accordance with those procedures.
§ 85.23 Test procedures.
Every manufacturer of new motor ve-
hicles subject to the standards prescribed
in this subpart shall, prior to taking any
of the actions specified in section 203
(a)(l) of the Act, test or cause to be
tested motor vehicles in accordance with
test procedures in Subpart H of this part
to ascertain that such test vehicles meet
the requirements of §§85.21 and 85.22,
as applicable. If, pursuant to § 85.55(a),
the Secretary issues a certificate of con-
formity for the class or classes of ve-
hicles represented by such test vehicles,
any new motor vehicle which is in all
material respects of substantially the
same construction as such test vehicles
shall be deemed to be in conformity with
the requirements of §385.21 and 85.22,
as applicable.
Subpart DExhaust Emissions (Gaso-
line Fueled Heavy Duty Engines)
§ 85.30 Applicability.
The provisions of this subpart are ap-
plicable to new gasoline fueled heavy
model year.
§ 85.31 Standards for exhaust emissions.
(a) Exhaust emissions from new gas-
oline fueled heavy duty engines shall not
exceed:
(1) Hydrocarbons275 p.p.m.
(2) Carbon monoxide1.5 percent by
volume.
(b) The standards set forth in para-
graph (a) of this section refer to a com-
posite sample representing the operating
cycles set forth in the applicable sections
of "Test Procedures for Engine Exhaust
Emissions (Gasoline Fueled Heavy Duty
Engines)" of this part and measured .in
accordance with those procedures.
§ 85.32 Test procedures.
Every manufacturer of new motor
vehicle engines subject to the standards
prescribed in this subpart shall, prior
to taking any of the actions specified in
section 203 (a) (1) of the Act, test or
cause to be tested motor vehicle engines
in accordance with test procedures pre-
scribed in Subpart I of this part to ascer-
tain that such test engines meet the
requirements of § 85.31. If, pursuant to
§ 85.55(a), the Secretary issues a certifi-
cate of conformity for the class or classes
of motor vehicle engines represented by
such test engines, any new motor vehicle
engine which is in all material respects
of substantially the same construction as
such test engines shall be deemed to be
in conformity with the requirements of
§ 85.31.
Subpart EExhaust Emissions (Heavy
Duty Diesel Engines)
§ 85.40 Applicability.
The provisions of this subpart are ap-
plicable to new heavy duty diesel engines
beginning with the 1972 model year.
§ 85.41 Standards for exhaust smoke.
(a) The opacity of smoke emissions
from new diesel engines subject to this
subpart shall not exceed:
(1) 40 percent during the engine ac-
celeration mode.
(2) 20 percent during the engine
lugging mode.
(b) The standards set forth in para-
graph (a) of this section refer to exhaust
smoke emissions generated under the
conditions set forth in the "Test Proce-
dures for Engine Exhaust Emissions
(Heavy Duty Diesel Engines)" of this
part and measured and calculated in
accordance with those procedures.
FEDERAL REGISTER, VOL. 35, NO. 219TUESDAY, NOVEMBER 10, 1970
C-5
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vehicle available for such testing under
5 85.54 as the Secretary may require be-
fore beginning lo accumulate mileage on
(he vehicle. Failure to comply with this
rc'iuircincnt will invalidate all test data
submitted for this vehicle.
if) Once a manufacturer begins to
operate an emission data or durability
data vehicle, as indicated by compliance
with paragraph (e) of this section, he
tJiall continue to run the vehicle to 4.000
miles or 50,000 miles, respectively, and
the dn la from the vehicle will be used in
the Calculations under § 85.92. Discon-
tinuation of a vehicle shall be allowed
only with the written consent of the
Secretary.
(g) (1) The Secretary may elect to
operate and test any test vehicle during
all or any part of the mileage accumula-
tion and testing procedure. In such cases,
the manufacturer shall provide the
vehicle(s) to the Secretary with all In-
formation necessary to conduct this
testing.
(2) The test procedures (§§ 85.71-
85.88) will be followed by the Secretary.
The Secretary will test the vehicles at
each test point. Maintenance may be
performed by the manufacturer under
such conditions as the Secretary may
prescribe.
(3) The data developed by the Secre-
tary for the engine-system combination
shall be combined with any applicable
data supplied by the manufacturer on
other vehicles of that combination to
determine the applicable deterioration
factors fnr the combination. In the case
of a significant discrepancy between
data developed by the Secretary and that
submitted by the manufacturer, the Sec-
retary's data shall be used in the deter-
mination of deterioration factors.
§85.92 Compliance with emission
standards.
(a) The exhaust and fuel evaporative
emission standards in the regulations in
this part apply to the average lifetime
emissions of vehicles in public use. Prior
to certification, lifetime emissions can be
obtained by projection of test data to
lifetime normal service. Normal service
in an urban area or its equivalent .for
100,000 miles is taken as the basis for
"lifetime emissions."
(b) It is expected that emission con-
trol efficiency will change with mileage
accumulation on the vehicle. It is as-
sumed that the emission level of a vehicle
which has accumulated 50,000 miles in
normal service is the averatre emission
level of that vehicle over its lifetime.
(c) The procedure for determining
compliance of a new light-duty motor
vehicle with exhaust and fuel evapora-
tive emission standards is as follows:
(1) Separate emission deterioration
factors shall be determined from the
emission results of the durability data
vehicles for each engine-system combi-
nation. A separate factor .shall be estab-
lished for the combination for exhaust
RULES AND REGULATIONS
HC, exhaust CO, and fuel evaporative
HC.
(1) The applicable results to be used
in determining the deterioration factors
for each combination shall be:
(a) All emission data from the tests
required under |85.91(b), except the
zero mile tests. This shall Include the of-
ficial test results, as determined in
§ 85.54, for all tests conducted on all
durability vehicles of the combination
selected under § 85.89 (c) (including all
vehicles elected to be operated by the
manufacturer under £ 85.89(c) (3)).
Where the Secretary has agreed to a
mileage less than 50,000 miles in accord-
ance with § 85.91(b), the data for mile-
17.103
ages greater than that actually run will
be determined by extrapolating the test
data generated at lesser mileages.
(6) All emission data from the tests
conducted before and after the mainte-
nance provided in § 85-DOfaXD CD.
(ii) All applicable results shall be
plotted as a function of the mileage on
the system, rounded to the nearest mile,
and the best fit straight lines, fitted by
the method of least squares, shall be
drawn through these data points. The
interpolated 4.000- and 50,000-mile ooints
on this line must be within the stand-
ards provided in §§ 85.21 and 85.22 or the
data will not be acceptable for use In cal-
culation of a deterioration factor.
(iii) An exhaust emission deteriora-
tion factor shall be calculated for each
combination as follows:
factor=-
exhaust emissions Interpolated to 50,000 miles
exhaust emissions Interpolated to 4,000 miles
(iv) An evaporative emission deteri-
oration factor shall be calculated for
each combination by substracting the
evaporative emissions Interpolated to
4,000 miles from the evaporative emis-
sions interpolated to 50,000 miles.
(2) (i) The exhaust emission test re-
sults for each emission data vehicle shall
be multiplied by the appropriate deteri-
oration factor: Provided, That if a de-
terioration factor as computed in sub-
paragraph (IXlii) of this paragraph is
less than one, that deterioration factor
shall be one for the purposes of this
subparagraph.
(ii) The evaporative emission lest re-
sults for each combination shall be ad-
justed by addition of the appropriate de-
terioration factor: Provided, That if a
deterioration factor as computed in sub-
paragraph (1) (iv) of this paragraph
is less than zero, that deterioration fac-
tor shall be zero for the purposes of this
subparagraph.
(3) The emissions to compare with the
standard shall be the adjusted emissions
of subparagraph (2) (1) and (ii) of this
paragraph for each emission data vehicle.
(4) Every test vehicle of an engine
family must comply with all applicable
standards, as determined in subpara-
graph (3) of this paragraph, before any
vehicle in that family may be certified.
Subpart ITest Procedures for Engine
Exhaust Emissions (Gasoline Fueled
Heavy Out/ Engines)
§ 85.100 Introduction.
The procedures described In this sub-
part will be the test program to deter-
mine the conformity of new gasoline
fueled heavy duty engines with the ap-
plicable standards set forth In this part.
(a) The test consists of prescribed
sequences of engine operating conditions
to be conducted on an engine dynamom-
eter. The exhaust gases generated during
engine operation are sampled continu-
ously for specific component analysis
through the analytical train. The tests
are applicable to engines equipped with
catalytic or direct-flame afterburners,
induction system modifications, or other
systems, or to uncontrolled engines.
signed to determine hydrocarbon and
carbon monoxide concentrations during
a truck driving pattern in a metropolitan
area as simulated on an engine dyna-
mometer. The test consists of two warm-
up cycles and two hot cycles. The aver-
age concentrations for the warmup
cycles and the hot cycles are combined to
yield the reported values.
(c) When an engine is tested for ex-
haust emissions or is operated for dura-
bility testing on an engine dynamometer
the complete engine shall be used with
all accessories which might reasonably
be expected to influence emissions to the
atmosphere installed and functioning.
§ 85.101 Gasoline fuel sproifioalions.
(a) For exhaust emission testing, fuel
having specifications as shown in the
table in § 85.71 (a), or substantially equiv-
alent specifications approved by the
Secretary, shall be used.
(b) For durability testing, fuel having
specifications as shown in the table in
§ 85.71 (b), or substantially equivalent
specifications approved by the Secretary,
shall be used. The octane rating of the
fuel used shall be in the range recom-
mended by the engine manufacturer.
The specifications of the fuel to be used
shall be reported in accordance with
§85.51(b)(3).
§85.102 Dynamometer operation <<!<
and equipment.
(a) (l) The following nine-mode cycle
shall be followed in dynamometer oper-
ation tests of gasoline fueled heavy duty
engines.
No. 319Pt.
FEDERAl REGISTER, VOL 35, NO. 219TUESDAY, NOVEMBER 10, 1970
C-6
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17304
RULES AND REGULATIONS
Sequence No.
Mode
Time In Cumulative Weighting
Manifold vacuum Mode-Sees. Time-Sees. factors
1
2
J::::::::::::::::::::::::
6....
6
7
8
8
Idle
Cruise
PTA
Cruise
PT1)
Cruise
FL
Cruise
CT.
16' Jig
10' HB
K' lit
19'He . . . .
HB
IC'lfg "--
70
23
44
23
17
23
34
23
43
70
93
137
100
177
200
234
257
300
0.036
.089
.257
.089
.047
.089
.283
.089
.021
(2) The engine dynamometer shall be
operated at a constant speed of 2,000
r.p.m.±100 r.p.m. (exception: represent-
ative engine speed for a given displace-
ment engine as determined by its appli-
cation, but not less than 1,800 r.p.m. nor
greater than 2,500 r.p.m.).
(3) The idle operating mode shall be
carried out at the manufacturer's recom-
mended engine speed. The CT operating
mode shall be carried out at the same
engine speed as in subparagraph (2) of
this paragraph.
(b) The following equipment shall be
used for dynamometer tests.
(1) An engine dynamometer capable
of maintaining constant speed±100
r.p.m. from full throttle to closed throttle
motoring.
(2) A chassis-type exhaust system or
substantially equivalent exhaust system,
shall be used.
(3) A radiator typical of that used
with the engine in a vehicle, or other
means of engine cooling which will main-
tain the engine operating temperatures
at approximately the same temperature
as would the radiator, shall be used. An
auxiliary fixed speed fan may be used to
maintain engine cooling during sustained
operation on the dynamometer.
§ 85.103 Dynamometer procedures.
An initial 5-mmute idle, two warmup
cycles; and two hot cycles constitute a
a complete dynamometer run. Idle modes
may be run at the beginning and end
of each test, thus eliminating the need to
change speed between cycles. One idle
mode preceding the first cycle and one
following the fourth cycle is sufficient.
The results of the first idle shall be used
for calculation of the second cycle emis-
sions and the fourth idle results shall be
used for calculation of the third cycle
emissions.
§ 85.104 Sampling and analytical system
for measuring exhaust emissions.
(a) Schematic drawing. The following
(fig. 6) is a schematic drawing of the
exhaust gas sampling and analytical
system which shall be used for testing
under the regulations in this subpart.
SAMPLE LINE
SAMPLE PROBE
REFRIGERATED FL5
WATER BATH H m,
DRAIN DRAIN BACKFLUSH HZ AND NORMALIZING
INLET GAS INLETS
Figure 6. Flow schematic of exhaust gas analysts system employed In Federal facilities.
(b) Component description. The fol-
lowing components shall be used in
sampling and analytical systems for
testing under the regulations in this part.
(1) Plowmeters PL1. FL2. PL3, and
VIA indicate the sample flow rate
through the analyzers.
(2) Low raiifre hydrocarbon analyzer.
(3) Carbon monoxide analyzer.
(4) Carbon dioxide analyzer.
(5) High range hydrocarbon analyzer.
(6) Pressure gauges PI. P2, and P3
indicate the anulyzer sample pressure.
(7) Needle valves Nl, N2, N3, and N4
regulate sample flow rate to the
analyzers.
(8) Needle valves N5, N6, N7, N8, N9,
and Nl 0 regulate the flow rates of N, and
normalizing gases to the analyzers.
(9) Ball valves VI. V2, and V3 for
directing either sample or calibration
gases to the analyzers.
(10) Needle valves Nil, N12, and N13
regulate the sample flow rate through the
bypass network.
(11) Flowmeters FL5. FL6, and FL7
Indicate the flow rate through the bypass
system.
(12) Pumps PI, P2, and P3 for pulling
sample from source.
(13) Filters PI, P2, and P3 remove
contaminants from sample prior to
analysis.
(14) Ball valves V4, V5, and V6 for
directing sample to the analyzer or di-
recting air in the reverse direction as a
backflush.
(15) Toggle valves V8, V9, V10, and
VI1 for draining condensate traps and
refrigerated bath.
(16) Traps Tl, T2, and T3 for con-
densing water vapor and cooling exhaust
sample.
(17) Ball valve V7 for diverting air to
low HC analyzer during periods of high
hydrocarbon response.
(18) Needle valve N14 for regulating
air flow to low hydrocarbon analyzer
during purge conditions.
(19) Thermometer for indicating bath
temperature.
(20) Refrigerated water bath for con-
densing water vapor and cooling exhaust
sample.
(21) Sample line from vehicle to
analysis system.
(22) Sample probe to extract exhaust
gas sample downstream of muffler.
(23) Ball valve V12 for directing N*
to hydrocarbon analyzers.
(c) Hang up reduction. Stringent
methods to reduce hang up may be em-
ployed. All methods must be approved in
advance by the Secretary.
§ 85.105 Information lo be recorded on
charts.
The following information shall be
recorded with respect to each test:
(a) Test number.
(b) System tested (brief description).
(c) Date and time of day for each part
of the test schedule.
(d) Instrument Operator.
(e) Driver or Operator.
(f) Engine Makeidentification num-
berdate of manufacturenumber of
hours engine displacement engine
familyIdle r.p.m.number carburet-
orsnumber of carburetor Venturis.
(g) All pertinent instrument informa-
tion such as tuninggainserial num-
bersdetector numbersrange.
(h) Recorder Charts: Identify zero,
span, exhaust gas sample traces.
(i) Barometric pressure, intake air
temperature and humidity and, as appli-
cable, the temperature of the air in front
of the radiator during the test.
(j) A continuous trace of intake mani-
fold vacuum and engine r.p.m., recorded
on the same chart with an automatic
marker indicating one second intervals.
§ 85.106 Calibration and instrument
checks.
(a) The instrument assembly shall ':e
calibrated at least once every 30 days,
using the same flow rate as when sam-
pling exhaust and proceeding as follows:
(1) Tune analyzers.
(2) Zero on nitrogen: Check each cyl-
inder of N, for contamination with hy-
FEDERAL REGISTER, VOL. 35, NO. 219TUESDAY, NOVEMBER 10, 1970
C-7
-------
RULES AND REGULATIONS
17.103
drocarbons. Set the Instrument gain to
give the desired range. Normal operating
ranc.es nre as follows:
Low-Range Hydrocor- 0-1.000 p.p.m. hex-
boa Analyzer. nnc equivalent.
High-Range Hydrocar- 0-10,000 p p.m. hex-
bon Analyzer. ane equivalent.
CO Analyzer 0-10% CO.
COi Analyzer 0-16% COi.
(3) Calibrate with the following nor-
malizing gases. Plow rates should be set
at 10 c.f .h. on the hydrocarbon analyzers
and 5 c.f.h. on the carbon monoxide and
carbon dioxide analyzers. The concentra-
tions given indicate nominal concentra-
tions, and actual concentrations should
be known to within ±2 percent of true
value. Prepurifled
diluent.
N, is used as the
Low range liC analyzer
High range HC analyzer
CO and COj analyzers
Blond of CO and
Molt
percent PI
Ilttane equivalent > llaant eguo-abnf CO
2flO p.p.m
300 p.p.m
400 p.p.in _
600 p.p.m
800 p.p.m
1,000 p.p.m. _.
1,000 p.p.ra
1,500 p.p.m.
2,500 p.p.m
4,000 p.p.m
6,000 p.p.in
8,000 p.p.m
10,000 p.p.m-
1.0
io
3.0
4.0
6.0
8.0
10.0
1 COi containing:
Mole
us percent
CO,
16.0
15.0
14.0
13.0
12.0
iao
8.0
6.0
i The heiane equivalent of propane, when used as the normalizing gits for calibrating nondlspefslve Infrared analyzers,
1> proscribed to be 0.62 (I'ropano ConccntrallonX0.52=Heiane Equivalent Concentration). .
Minimum storage temperature of the
cylinders shall be 60* F.; minimum use
temperature shall be 68° P.
(4) Compare values with previous
curves. Any significant change reflects
some problem In the system. Locate and
correct problem, and recalibrate. Use best
judgment in selecting curve for data
reduction.
(5) Check response of hydrocarbon
analyzer to 100 percent CO;. If response
Is greater than 0.5 percent full scale, re-
fill filter cells with 100 percent CO, and
recheck. Note any remaining response
on chart. If response still exceeds 0.5
percent, replace detector.
(6) Check response of hydrocarbon
analyzers to nitrogen saturated with
water at ambient temperature. Record
ambient temperature. If the low-range
Instrument response exceeds 5 percent of
full scale with saturated nitrogen at 75*
P., replace the detector. If the high-range
response exceeds 0.5 percent of full scale,
check detector on low-range instrument,
then reject if response exceeds 5 percent
of full scale at 75* P.
(b) The following daily instrument
check shall be performed, allowing a min-
imum of 2 hours warmup for infrared
analyzers. (Power is normally left on
continuously; but, when Instruments are
not in use, chopper motor is turned off.):
(1) Zero on clean nitrogen introduced
at analyzer inlet. Obtain a stable zero
on the amplifier meter and recorder. Re-
check after test.
(2) Introduce normalizing gas and set
gain to match calibration curve. In order
to avoid a correction for sample cell
pressure, normalize and calibrate at the
same flow rates used for exhaust sam-
pling. Normalizing or span gases: (See
paragraph (a) (3) of this section for al-
lowable variation.)
Low-Range Hydrocar-
bon Analyzer.
High-Range Hydrocar-
bon Analyzer.
1.000 p.p.ra. hexane
equivalent In pre-
purifled N,.
10.000 p.pjn. hexane
equivalent In pre-
purlflcd N,.
CO Analyzer 10% CO In prepuri-
fledN,.
COi Analyzer 13 to 16% COi In
prepurtfled Nr
If gain has shifted significantly, check
tuning. If necessary, check calibration.
Recheck after test. Record actual con-
centrations on chart.'
(3) Check nitrogen zero, repeat the
procedure hi subparagraphs (1) and (2)
of this paragraph if required.
(4) Check flow rates and pressures.
§ 85.107 Dynamometer test run.
(a) The engine shall be allowed to
stand with engine turned off for at least*
1 hour before the exhaust emission test
at an ambient temperature of 60* F. to
86' F. The engine shall be stored prior
to the emission tests in such a manner
that it is not exposed to precipitation or
condensation. During the dynamometer
run, the ambient temperature shall be
between 68* F. and 86* F.
(b) The following steps shall be taken
for each test:
(1) Mount test engine on the engine
dynamometer.
(2) Calibrate exhaust emission ana-
lyzer assembly.
(3) Start cooling system, if it is to be
used.
(4) Start engine and idle at 1,000-
1,200 r.p.m. for 5 minutes.
(5) Obtain normal Idle speed, record
it, and start exhaust sampling.
(6) Run four 9-mode cycles.
(c) Upon completion of the test; purge
the sample line with nitrogen to estab-
lish a constant hydrocarbon "hangup"
level. The hydrocarbon concentration
shall drop to 5 percent of scale In 10
seconds, and 3 percent of scale in 3 min-
utes, or the test is invalid. Check calibra-
tion of exhaust emission instruments. A
drift in excess of ±2 percent of scale in
the calibration of any one of the exhaust
emission analyzers will invalidate the
test results.
§ 85.108 Chart rending.
The recorder response for measuring
exhaust gas concentrations always lags
the engine's operation because of a vari-
able exhaust system di'lay and a fixed
sample system delay. Therefore, the con-
centrations for each mode will not be
located on the charts at a point corres-
ponding to the exact time of the mode.
For each warmup or hot cycle to be
evaluated, proceed as follows:
(a) Determine whether the cycle was
run in accordance with the specified
cycle timing by observing either chart
pips, speed trace, manifold vacuum trace,
or concentration traces. Deviation by
more than 2 seconds from the specified
time for the closed throttle mode (se-
quence 9) or deviation of more than
±0.2" Hg from the specified mode vac-
uums during the last 10 seconds of a
mode will invalidate the data.
(b) Time correlate the hydrocarbon,
carbon monoxide, and carbon dioxide
charts. Determine the location on the
chart of concentrations corresponding to
each mode. Determine and compensate
for trace abnormalities.
(c) For all open throttle (3". 10", 16",
and 19" Hg) and idle modes, integrate
the last 3 seconds of the HC, CO and
COi traces.
(d) The values recorded for the initial
Idle mode are used for both warmup
cycles 1 and 2. The final idle mode values
are applied to hot cycles 3 and 4.
(e) Intergrate the complete HC, CO,
and COt traces during this 43-second
closed throttle mode of each cycle.
(f) Direct computer analysis of ana-
lyzer output may be utilized provided
that the analysis is sufficiently similar
to the above procedures to result in com-
parable data results.
§ 85.109 Calculations.
The final reported test results shall
be derived through the following steps:
(a) Determine composite hydrocarbon
and carbon monoxide concentrations for
the first and second cycles. Average the
results of these two cycles.
(b) Determine composite hydrocarbon
and carbon monoxide concentrations for
the third and fourth cycles. Average the
results of these two cycles.
(c) Combine the results of paragraphs
(a) and (b) of this section according to
the formula: 0.35(a) plus 0.65(b). Since
hydrocarbon, carbon monoxide, and car-
bon dioxide are all measured with es-
sentially the same moisture content, no
moisture correction Is required to con-
vert the results to a dry basis. The
correction factor:
14.5
% CO.+ (0.5f% CO+ (1.8X6) %"HC
shall be applied to the measured concen-
trations of hydrocarbon and carbon
monoxide to correct these observed
values for dilution of the exhaust.
§ 85.110 Teat engines.
(a) The engines covered by the ap-
plication for certification will be divided
Into engine families based upon the cri-
teria outlined in 5 85.89(a).
(b) Emission data engines:
U> Engines will be chosen to be run
for emission data based upon the engine
family groupings. Within each engine
FEDERAl REGISTER, VOL. 35, NO. 719TUESDAY, NOVEMBER 10, 1970
C-8
-------
17306
RULES AND REGULATIONS
family, the requirements of this para-
graph must be met.
(2) Engines of each engine family
will be divided into engine displacement-
exhaust emission control system combi-
nations. A projected sales volume will
be established for each combination for
the model year for which certification is
sought. One engine of each combination
will be selected in order of decreasing
projected sales volume until 70 percent
of the projected sales of a manufacturer's
total production of engines of that family
is represented, or until a maximum of
four engines is selected. The engines se-
lected for each combination will be speci-
fied by the Secretary as to fuel system.
(3) The Secretary may select a maxi-
mum of two additional engines within
each engine family based upon features
indicating that they may have the high-
est emission levels of the engines in that
engine family. In selecting these engines,
the Secretary will consider such features
as the exhaust emission control system,
induction system characteristics, ignition
system characteristics, fuel system, rated
horsepower, rated torque, and compres-
sion ratio.
(4) If the engines selected In accord-
ance with subparagraphs (2) and (3) of
this paragraph do not represent each
engine-system combination, then one
engine of each engine-system combina-
tion not represented shall be selected by
the Secretary. The engine selected shall
be of the displacement with the largest
projected sales volume of engines with
the exhaust emission control system in
the family and will be designated by the
Secretary as to fuel system.
(c) Durability data engines:
(1) A durability data engine will be
selected by the Secretary to represent
each engine-system combination. The
engine selected shall be of the displace-
ment with the largest projected sales
volume of engines with that exhaust
emission control system in that engine
family and will be designated by the
Secretary as to fuel system.
. (2) If an exhaust emission control
system is used in only one engine family,
an additional engine using that control
system In that family will be selected so
that the durability data fleet shall con-
tain at least two engines with each con-
trol system. The additional engine will be
selected in the same manner as engines
selected under subparagraph (1) of this
paragraph.
(3) A manufacturer may elect to op-
erate and test additional engines to rep-
resent any engine-system combination.
The additional engines must be of the
same engine displacement and fuel sys-
tem as the engine selected for that
combination in accordance with the pro-
visions of subparagraph (1) of this
paragraph. Notice of an intent to run
additional engines shall be given to the
Secretary not later than 30 days follow-
ing notification of the test fleet
selection.
(d) Any manufacturer whose, pro-
jected sales of new motor vehicle engines
subject to this subpart for the model year
for which certification is sought is less
than 700 engines may request a reduction
in the number of test engines determined
in accordance with the foregoing pro-
visions of this section. The Secretary
may agree to such lesser number as he
determines will meet the objectives of
this procedure.
(e) In lieu of testing an emission data
or durability data vehicle selected under
paragraph (b) or (c) of this section and
submitting data therefor, a manufac-
turer may, with the prior written ap-
proval of the Secretary, submit data on
a similar vehicle for which certification
has previously been obtained.
§85.111 Maintenance.
(a) (1) Maintenance on the engines
and fuel systems of durability engines
may be performed only under the
following provisions:
. (i) Two major engine tuneups to
manufacturer's specifications may be
performed at 500 and 1,000 hours (d:8
hours) of scheduled dynamometer op-
eration with the following exception: On
engines with a displacement of 200 cubic
inches or less, a major engine tuneup
may be performed at 375, 750, and 1,125
hours (±8 hours) of scheduled dyna-
mometer operation. A major engine
tuneup shall be restricted to the
following:
(a) Replace spark plugs.
(b) Inspect ignition wiring and re-
place as required.
(c) Replace distributor breaker points
and condenser as required.
(
-------
§85.113 Compliance with emission
Innclurds.
(a) The exhaust emission standards in
the regulations in this part apply to the
average lifetime emissions of engines in
public use. Prior to certification, lifetime
emissions can be obtained by projection
of test data to lifetime normal service.
Normal service in an urban area or its
equivalent for 100.000 miles is taken as
the basis for "lifetime emissions." Oper-
ation on an engine dynamometer in the
prescribed manner for 3.000 hours is
taken to be equivalent to such service.
(b) It is expected that emission con-
trol efficiency will change with the ac-
cumulation of hours on the engine. It is
assumed that the emission level of an
engine which has accumlated 1,500 hours
of dynamometer operation is the aver-
age emission level of that engine over its
lifetime.
(c) The procedure for determining
compliance of a new engine with exhaust
emission standards is as follows:
(1) Separate emission deterioration
factors shall be determined from the
emission results of the durability data
engines for each engine-system combina-
tion. Separate factors shall be established
for HC and CO for each combination.
(i) The applicable results to be used
in determining the deterioration factors
for each combination shall be:
(a) All emission data from the tests
required under §85.112(b), except the
zero-hour tests. This shall include the
official test results, as determined in
§ 85.54, for all tests conducted on all
durability engines of the combination
selected under § 85.110(c) (including all
engines elected to be operated by the
manufacturer under §85.110(0(3)).
(b) All emission data from the tests
conducted before and after the main-
tenance provided in i 85.111 (a) (1) (i).
(ii) All applicable results shall be
plotted as a function of the hours on the
system, rounded to the nearest hour, and
the best fit straight lines, fitted by the
method of least squares, shall be drawn
through these data points. The inter-
polated 125- and 1,500-hour points on
this line must be within the standard
provided in § 85.31 or the data shall not
be used in calculation of a deterioration
factor.
(ill) An exhaust emission deteriora-
tion factor shall be calculated for each
combination as follows:
tactor=-
exhaust emissions Interpolated to 1.500 hours
exhaust emissions Interpolated to 125 hours
(2) The exhaust emission test results
for each emission data engine shall be
multiplied by the appropriate deteriora-
tion factor: Provided, That if a deteri-
oration factor as computed in subpara-
graph (1) of this paragraph is less than
one. that deterioration factor shall be one
for the purposes of this subparagraph.
(3) The emissions to compare with the
standard shall be the adjusted emissions
of subparagraph (2) of this paragraph
for each emission data engine.
(4) Every test engine of an engine
family must comply with all applicable
standards, as determined in subpara-
graph (3) of this paragraph, before any
engine in that family will be certified.
Subpart JTest Procedures for En-
gine Exhaust Emissions (Heavy Duty
Diesel Engines)
§85.120 Introduction.
(a) The procedures described In this
subpart will be the test program to deter-
mine the conformity of heavy duty diesel
engines with the applicable standards set
forth in this part:
(b) The test consists of a prescribed
sequence of engine operating conditions
on an engine dynamometer with con-
tinuous examination of the exhaust gases.
The test is applicable equally to con-
trolled engines equipped with means for
preventing, controlling, or eliminating
smoke emissions and to uncontrolled
engines.
(c) The test is designed to determine
the opacity of smoke in exhaust emis-
sions during those engine operating con-
ditions which tend to promote smoke
from diesel-powered vehicles.
(d) The test procedure begins with a
warm engine which is then run through
preloading and preconditioning opera-
tions. After an idling period, the engine is
operated through acceleration and lug-
ging modes during which smoke emission
measurements are made to compare with
the standards. The engine is then re-
turned to the idle condition and the ac-
celeration and lugging modes are re-
peated. Three sequences of acceleration
and lugging constitute the full set of
operating conditions for smoke emission
measurement.
§ 85.121 Diesel fuel specifications.
(a) The diesel fuels employed shall be
clean and bright, with pour and cloud
points adequate for operabllity. The fuels
may contain nonmetallic additives as
follows: cetane improver, metal dcactl-
vator, antioxidant, dehazer, antirust,
pour depressant, dye, and dispersant.
(b) Fuel meeting the follosving specifi-
cations, or substantially equivalent speci-
fications approved by the Secretary, s.-.^.l
be used in exhaust emission lestinj. The
grade of fuel recommended by the engine
manufacturer, commercially designated
as "Type l-D" or "Type 2-D", shall be
used.
Item
ASTM test method No.
Typo l-D Typt:-D
4S-64
.130-3'fl
iou-.SW
40-tl
0. 05-U. 20
4 .'-JO
U.V37
0. 2-0. 5
Cetane D 613
Distillation rango 1)86
IUr, °F
10 percent point, "F
80 percent point, °F
JO percent point, "F
KP «F
Gravity. API . D 287
Total sulfur, percent D l?Jor D 2622
Hydrocarbon composition D 13HI
Aromatlcs. percent &-15
I'araihns, N;iphthenes, Olefins Remainder P
Flash polnt,°F (Min.) D M 12U
Viscosity, contlstokes D 445 1.6-2.0
(c) Fuel meeting the following specifications, or substantially equivalent specifi-
cations approved by the Secretary, shall be used in service accumulation. The grade
of fuel recommended by the engine manufacturer, commercially designated as
"Type l-D" or "Type 2-D", shall be used.
27 (Min.)
i:*)
2.0-3.2
Item
ASTM test method No.
Typo l-D Type I-D
Cetane ................
Distillation range ......
I1U', °F .............
10 percent point, °F .
SO percent point, °F.
'JO percent point, "F .
U 013.
U bli..
4&-S4
42-5J
..._ .. .........
Gravity, "API ........
Total sulfur, percent...
Flash point, °F (Min.).
Viscosity, centiatokes.-
D 287
D 129 orD 2622
D 93
1> 445
37U-4.10
410-4 Ml
4GO-WJ
SUO-5IXI
4IM4
n. os-o.so
12il
l.fl-2.0
4.«M70
47»-M'l
Ml-CIO
if-l-coO
3.1-40
0. 2Hl. 5
130
2.0-3.3
(d) The type fuel, including additive
and other specifications, used under
paragraphs (b) and (c) of this section
shall be reported in accordance with
§ 85.51 (b) (3).
§ 85.122 Dynamometer operation cycle
for smoke emission tests.
(a) The following sequence of opera-
tions shall be performed during engine
dynamometer testing of smoke emissions,
starting with the dynamometer preload-
ing determined and the engine precondi-
tioned (§85.127(c».
(1) Idle mode. The engine Is caused
to idle for 5 to 5.5 minutes at the manu-
facturer's recommended low Idle speed.
The dynamometer controls shall be set to
provide minimum load by turning the
load switch to the "off" position or by
adjusting the controls to the minimum
load position.
(2) Acceleration mode, (i) The engine
speed shall be increased to 200^50 r.p.m.
above the manufacturer's recommended
low idle speed within 3 seconds.
(ii) The engine shall be accelerated at
full-throttle against the inertia of the
engine and dynamometer or alternately
against a preselected dynamometer load
such that the engine speed reaches 85
to 90 percent of rated speed in 5=1.5
seconds.
C
r
HI
l/>
z
o
o
o
VI
FEDERAL REGISTER, VOL 35, NO. 219TUESDAY, NOVEMBER 10, 1970
-------
APPENDIX D
RESULTS OF SURVEILLANCE TEST
BY INSPECTION ROUND
-------
TABLE D-l. VEHICLE DESCRIPTION AND FIRST ROUND EMISSION RESULTS
"0" M3NTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF JULY b. 1971)
Emission Results
Unil
No.
1
2
3
4
5
6
7
8
9
10
11
12
1 3
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Dale
T--sled
10-22-70
10-22-70
10-23-70
10-23-70
10-23-70
1 1 -18-70
11 -19-70
1 1-20-70
11-23-70
1 1-24-70
11-25-70
1 1-27-70
1 1-27-70
11 -27-70
11 -30-70
12-1-70
12-2-70
12-3-70
12-4-70
12-3-70
12-4-70
12-4-70
12-4-70
12-7-70
12-7-70
12-4-70
12-7-70
12-7-70
12-8-70
12-8-70
12-10-70
12-10-70
12-10-70
12-10-70
12-10-70
12-10-70
12-10-70
12-11-7U
12-11-70
12-14-70
12-14-70
12-15-70
12-15-70
12-16-70
12-16-70
12-17-70
12-28-70
12-28-70
12-29-70
12-29-70
T ruck
No.
PCM 1001
P040999
P040997
P041000
P041002
353
349
351
350
352
24340
24341K
24343
24342
56
53
55
6
54
72341
72218
5131
5132
5136
5141
4952
6615
6616
4824
4726
4728
4729
671
672
673
4727
4730
4951
8810
8811
6855
6617
6856
4671
6857
4950
312
314
301
302
Source
P. O. D.
P. O. D.
P. O. D.
P. O. D.
P. 0. D.
ABC
ABC
ABC
ABC
ABC
Ryder
Ryder
Ryder
Ryder
N. S. S. D.
N. S. S. D.
N. S. S. D.
N. S. S. D.
N. S. S. D.
Hertz
Herlz
C. P. S. B.
C.P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
Brown Exp.
Brown Exp.
Brown Exp.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C.P. S. B.
C.P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B
C. P. S. B.
C. W. B.
C. W.B.
C. W. B.
C. W. B.
Vehicle
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1970
1971
1971
1971
1970
1970
1970
1970
1970
1970
1971
1971
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
Make
Dodge
Dodge
Dodge
Dodge
Dodge
White
White
White
White
White
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
Ford
Ford
IHC
IHC
IHC
IHC
IHC
Ford
Ford
Ford
Chev
Chev
Chev
Ford
Ford
Ford
Chev
Chev
IHC
Ford
Ford
Ford
Ford
Ford
Ford
Ford
IHC
IHC
IHC
IHC
IHC
Engine
CID
318
318
318
318
318
400
400
400
400
400
478
478
478
478
345
345
345
345
345
300
240
392
392
392
392
304
300
300
300
292
250
250
300
300
300
250
250
304
300
300
300
300
300
300
300
304
304
304
304
304
Cyi.
V8
V8
V8
V8
V8
6
6
6
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
V8
V8
V8
V8
V8
6
6
6
6
6
6
6
6
6
6
6
V8
6
6
6
6
6
6
6
V8
V8
V8
V8
V8
Trans.
Speeds*
3 auto
3 auto
3 auto
3 auto
3 auto
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5
5
5
5
5
3 auto
3 auto
3 auto
3 auto
3 auto
3 auto
4
4
4
4
4
4
4
5
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
GVW
Ibs.
10, 000
10, 000
10, 000
10, 000
10, 000
30.000
30. 000
30, 000
30, 000
30, 000
32, 000
32, 000
32,000
32,000
25, 500
25, 500
25, 500
22,000
22,000
10,000
7, 500
25, 500
25, 500
25, 500
25, 500
14,000
10, 000
10, 000
16,000
9,000
7, 500
7, 500
24, 000
24, 000
24, 000
7,500
7, 500
14, 000
16,000
16,000
16,000
10,000
16,000
10, 000
16, 000
19, 700
19, 700
19,700
10,000
10,000
Vehicle
Type
Van
Van
Van
Van
Van
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
School Bus
School Bus
School Bus
School Bus
School Bus
Stake
Pickup
Line
Line
Line
Line
Van
Service
Service
Service
Service
Service
Service
Freight Van
Freight Van
Freight Van
Service
Service
Service
Service
Service
Service
Wrecker
Service
Stake
Service
Bucket Truck
Service
Service
Crew Truck
Crew Truck
Test
Mileage
8
19
21
38
22
9245
9109
9178
9010
9552
163
56
2730
1259
4196
4037
3620
4197
3961
7361
9108
44
43
37
29
34
365
415
2103
4356
3000
1274
20
27
12
2228
841
1549
1677
1227
343
414
2770
1142
3357
561
6816
3521
3099
4264
HC,
ppm
198
226
209
216
173
189
182
166
96
138
296
255
229
255
250
284
236
272
345
170
261
273
271
262
148
252
223
192
209
244
266
274
209
138
149
249
263
253
184
174
146
176
171
171
197
303
272
346
265
352
CO.
%
1 . 44
2. 07
2. 05
2. 08
1. 89
1. 49
4. 49
2. 04
1. 87
2. 54
1. bl
1. 21
1. 82
1.15
1. 30
1. 22
1. 05
1. 13
1. 59
0. 54
0. 45
2.61
181
1. 34
2. 04
1.21
0. 56
0. 36
0.59
1.15
1.46
1.69
1.07
0. 32
0. 65
1. 27
1. 19
0. 78
0.69
0. 54
0. 53
0.48
0.83
0.35
0. 78
0.96
1.02
1.63
0.99
2. 24
NO, ppm
Obs.
1019
1 102
818
1044
656
2221
1213
1 72?
1902
1647
1 -139
1605
1419
1719
2186
2305
2294
2477
2141
2796
2356
960
1221
1289
602
2013
1678
1580
2923
2184
2346
2189
2234
2154
2113
2336
2462
2916
1884
3165
1730
1112
2592
2600
2263
2257
2121
2080
2571
2067
Cor r.
857
1 102
688
878
5S2
2387
1 316
1-150
1878
1385
H74
1767
1563
1701
2283
2330
2453
2572
2187
2846
2445
997
1272
1219
604
2089
1708
1487
2934
2193
2419
2228
2192
2151
2108
2329
2455
2363
1508
3007
1698
1065
2583
2312
1975
2005
1836
1831
2261
1810
Unil
No,
1
i
3
1
c,
h
7
H
q
in
1 1
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
"-lo means two-speed rear axle.
-------
TABLE D-l (Cont'd). VEHICLE DESCRIPTION AND FIRST ROUND EMISSION RESULTS
"0" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF JULY 6, 1971)
Unit
No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
_85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Date
Tested
12-30-70
12-31-70
12-31-70
12-31-70
1-2-71
l-t-ii
1-2-71
1-2-71
1-2-71
1-3-71
1-3-71
1-3-71
1-3-71
1-6-71
1-7-71
1-9-71
1-9-71
1-9-71
1-12-71
1-12-71
1-12-71
1-12-71
1-13-71
1-13-71
1-16-71
1-16-71
1-16-71
1-16-71
1-16-71
1-18-71
1-20-71
1-21-71
1-21-71
1-21-71
1-21-71
1-23-71
1-23-71
1-23-71
1-23-71
1-23-71
1-26-71
1-27-71
1-27-71
1-28-71
1-28-71
l-e,i-l\
1-29-71
1-30-71
1-30-71
1-30-71
Truck
No.
93
105
106
122
311
313
315
316
317
253
254
391
392
582
581
251
252
360
5133
5140
5097
5106
5130
5135
M-78
M-80
M-98
SH-680
SH-699
1029
134
135
239
240
250
L-41
M-77
M-87
M-90
M-95
2179
2120
27
2073
2121
4T1
4T16
1T22
2T9
2T12
Vehicle
Source Year
Pearl 1970
Pearl 1970
Pearl 1970
Pearl 1970
C.W.B. 1970
C.W.B. 1970
C.W.B. 1970
C.W.B. 1970
C.W.B. 1970
C.W.B. 1970
C.W.B. 1970
C.W.B. 1970
C. W. B. 1970
Red Arrowl970
Red Arrowl970
C.W.B. 1970
C.W.B. 1970
C.W.B. 1970
C. P.S.B. 1970
C. P.S. B. 1970
C. P.S. B. 1971
C. P.S.B. 1971
C. P.S.B. 1970
C. P.S.B. 1970
State Hospl970
State Hospl970
State Hospl970
State Hospl970
State Hospl970
Lone Star 1970
Herder 1970
Herder 1970
Herder 1970
Herder 1970
C.W.B. 1970
State Hospl970
State Hospl970
State Hospl970
State Hospl970
State Hospl970
City P&R 1970
City P8tR 1970
B.M.W. 1970
City PfeR 1970
City P&R 1970
B. C.R.D. 1970
B. C.R.D. 1970
B. C.R.D. 1970
B. C.R.D. 1970
B. C.R.D. 1970
En
gine
Make CID
IHC
CMC
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Dodge
Dodge
Dodge
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
IHC
Dodge
Dodge
Dodge
Ford
CMC
Chevrolet
Ford
Ford
Ford
Ford
_ Chevrolet.
Dodge
Dodge
Dodge
Dodge
Dodge
IHC
Ford
Ford
Chevrolet
Ford
Ford
Ford
Ford
Ford
Ford
304
292
318
300
304
304
304
304
304
307
307
366
366
318
318
318
318
361
392
392
345
345
392
392
225
225
225
302
401
307
300
300
361
361
307
225
225
225
225
225
345
360
360
292
360
240
240
330
330
330
C-
V8
6
V8
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
6
V8
V6
V8
6
6
V8
V8
V8
6
6
6
6
6
V8
V8
V8
6
V8
6
6
V8
V8
V8
Emission Results
Trans
Speeds*
3
3
3
3
4
4
4
4
4
4
4
5
5
4
4
3 auto
3 auto
5
6 auto
6 auto
5
5
6 auto
6 auto
4
4
4
3 auto
5
4
5
5
5
5
2 auto
3 auto
3 auto
3 auto
3 auto
3 auto
4
4
4
3 auto
4
3
3
5
4
4
GVW
Ibs.
7,
7,
7,
7,
19,
19,
19,
19,
19,
7,
7,
32,
32,
24,
24,
7,
7,
25,
25,
25,
25,
25,
25,
25,
7,
7,
7,
6,
27,
6,
21,
21,
22,
22,
7,
10,
10,
7,
10,
10,
19,
8,
7,
14,
8,
7,
7,
21,
21,
21,
500
500
500
500
700
700
700
700
700
500
500
000
000
000
000
500
500
500
500
500
000
000
500
500
500
500
500
800
000
600
000
000
000
000
500
000
000
500
000
000
000
300
500
000
300
500
500
000
000
000
Vehicle
Type
Delivery
Delivery
Delivery
Delivery
Service
Service
Service
Service
Service
Service
Service
Crane
Crane
Freight
Freight
Meter
Service
Dump
Line
Line
Digger
Digger
Line
Line
Pickup
Pickup
Pickup
Van
Bus
Delivery
Freight
Freight
Freight
Freight
Service
Laundry
Grounds
Service
Maintenance
Grounds
Water TrucK
Maintenance
Repair
Maintenance
Maintenance
Maintenance
Welder
Water Truck
Water Truck
Water Truck
Initia 1
Mileage
11.
15,
a,
18,
3,
4,
2,
1,
3,
2,
5,
14,
10,
6,
4,
8,
5,
1,
2,
1,
26,
16,
H,
10,
13,
18,
2,
1,
4,
3,
2,
7,
1,
2,
13,
9,
15,
12,
9,
034
944
504
143
729
938
812
522
320
056
031
687
990
520
656
025
981
094
32
30
456
464
45
287
963
791
019
442
838
622
201
190
511
920
225
568
985
875
274
201
219
948
553
770
26$
174
762
424
301
339
HC, ppm
261
253
277
186
331
280
350
276
301
280
279
170
184
294
328
247
298
322
274
291
270
295
281
289
255
211
226
164
229
172
132
180
232
282
292
181
185
207
201
181
230
209
230
173
260
261
262
253
277
322
CO
1
0.
1.
0.
1.
1.
1.
1.
1.
3.
,%
.40
.86
.50
.26
,39
. 27
,49
.35
.20
.79
2.90
1.
1.
1.
1.
1.
1.
1.
2.
2.
1.
1.
2.
2.
2.
2.
1.
1.
2.
2.
0.
0.
1.
1.
3.
1.
1.
1.
1.
1.
0.
1.
1.
0.
2.
0.
1.
0.
1.
1.
,14
,16
,47
.94
,70
64
76
36
06
14
10
32
17
13
03
83
07
04
30
52
83
18
40
16
67
76
57
60
67
89
20
85
89
06
93
62
71
05
, 11
NO,
Obs.
2322
3241
2050
3984
1805
1784
1959
1968
2035
1102
1184
1282
481
2519
2489
1796
1752
1958
1022
977
1772
1585
1195
1238
2176
2271
2452
1795
1760
2655
1765
2024
1658
2212
1624
1651
2197
2301
2097
2147
2180
2052
1946
2222
1419
1853
1900
3025
2904
2986
ppm
Corr.
2086
2803
1972
3957
1844
1612
2000
1692
1691
1150
1299
1033
390
2308
2119
1579
1589
1721
1061
1033
1878
1671
1256
1270
1881
1910
2599
1803
1656
2384
1731
1870
1540
2093
1632
1512
2259
2192
2135
2123
1969
1736
1981
2284
1497
1840
1864
3188
3061
2452
Unit
No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
-i=Hi-lo means two-speed rear axle.
-------
TABLE D-l (Cont'd). VEHICLE DESCRIPTION AND FIRST ROUND EMISSION RESULTS
"0" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF JULY 6. 1971)
Unit
No.
101
102
103
10-j
105
lUb
107
100
09
10
1 1
12
13
14
15
16
117
118
119
120
121
122
123
124
125
Uu
127
128
129
130
131
132
133
134
135
136
137
138
139
140
1-.1
142
143
144
145
146
147
14B
149
150
151
152
Date
Tested
1-30-71
2-3-71
2-3-71
2-4-71
2-4-71
2-5-71
2-5-71
2-8-71
2-8-71
2-9-7!
Z-Sf-71
2-10-71
2-11-71
2-12-71
2-12-71
2-16-71
2-18-71
2-18-71
2-19-71
2-19-71
2-20-71
2-20-71
2-20-71
2-21-71
3-9-71
j - 1 1 - 'i 1
4-24-71
4-6-71
4-7-71
4-12-71
i-22-71
4-23-71
4-23-71
4-27-71
4-27-71
4-27-71
4-28-71
4-28-71
4-28-71
"-29-71
.-24-71
5-18-71
5-18-71
5-19-71
5-21-71
5-24-71
5-24-71
5-24-71
6-11-71
6-11-71
6-14-71
6-18-71
Truck
4T23
7
34
2085
2122
2119
2123
2168
2169
2081
2082
2170
51346
51375
51383
4364
16
043247
043144
043327
98
101
102
105
043221
042519
1085
1086
1088
1353
1347
1355
1340
1348
1345
1349
1365
1346
1364
1363
U87
496
497
503
3
1
5
2
7
4
276-15T
6
Vehicle
B.C.R.D. 1970
B.M.W. 1970
Southern 1970
City P&R 1970
City P&R 1970
City P8iR 1970
City P8
-------
TABLE D-2. VEHICLE DESCRIPTION AND SECOND ROUND EMISSION RESULTS
"4" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF NOVEMBER 1, 1971)
u nu
M/i
INO.
1
Z
3
4
5
b
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
-22
23
24
25
26
Z7
28
29
30
31
32
33
34
35
36
37
38
i9
40
41
42
43
44
45
46
47
48
49
50
i->ate
Tested
3-8-71
3-10-71
3-S-71
3-10-71
3-9-71
4-5-71
4-5-71
-1-6-71
4-6-71
4-7-71
3-25-71
3-29-71
3-31-71
5-26-71
4-2-71
4-1-71
4-1-71
3-30-71
3-31-71
3-26-71
3-26-71
6-14-71
6-11-71
9-7-71
6-15-71
4-9-71
4-12-71
4-12-71
4-13-71
4-9-71
4-8-71
4-8-71
4-8-71
4-8-71
4-9-71
4-19-71
4-15-71
4-15-71
4-14-71
4-13-71
4-14-71
4-16-71
4-10-71
5-17-71
5-8-71
5-20-71
5-20-71
i ruck
No.
P041001
P040999
P040997
P041000
P041002
353
349
351
350
352
24340
24341K
24343
24342
56
53
55
6
54
72341
72218
5131
5132
5136
5141
4952
6615
6616
4824
4726
4728
47290
671
672
673
4727
4730
4951
8810
8811
6855
6617
6856
4671
6857
4950
312
314
301
302
Vehicle
Source Year
P.O.D. 1970
P.O D. 1970
P.O.D. 1970
P.O.D. 1970
P.O.D. 1970
ABC 1970
ABC 1970
ABC 1970
ABC 1970
ABC 1970
Ryder 1970
Ryder 1970
Ryder 1970
Ryder 1970
N.S.S.D. 1970
N.S.S.D. 1970
N.S.S.D. 1970
N.S.S.D. 1970
N.S.S.D. 1970
Hertz 1970
Hertz 1970
C.P.S.B. 1971
C.P.S.B. 1970
C.P.S.B. 1971
C.P.S.B. 1971
C.P.S.B. 1971
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
Brown Exp 1971
Brown Exp 1971
Brown Exp 1971
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.W.B. 1970
C.W.B. 1970
C.W.B. 1970
C.W.B. 1970
Engine
Make CID
Dodge 318
Dodge 318
Dodge 318
Dodge 318
Dodge 318
White 400
White 400
White 400
White 400
White 400
IHC 478
IHC 478
IHC 478
IHC 478
IHC 345
IHC 345
IHC 345
IHC 345
IHC 345
Ford 300
Ford 240
IHC 392
IHC 392
IHC 392
IHC 392
IHC 304
Ford 300
Ford 300
Ford 300
Chevrolet 292
Chevrolet 250
Chevrolet 250
Ford 300
Ford 300
Ford 300
Chevrolet 250
Chevrolet 250
IHC 304
Ford 300
ford 300
Ford 300
Ford 300
Ford 300
Ford 300
Ford 300
IHC 304
IHC 304
IHC 304
IHC 304
IHC 304
Cyl.
V8
V8
V8
V8
V8
6
6
6
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
V8
V8
V8
V8
V8
6
6
6
6
6
6
6
6
6
6
6
V8
b
6
6
6
6
6
6
V8
V8
V8
V8
V8
Trans
Speeds*
3 auto
3 auto
3 auto
3 auto
3 auto
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi'Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5
5
5
5
5
5
3 auto
3 auto
3 auto
3 auto
3 auto
3 auto
4
4
4
4
4
4
4
5
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
GVW
Ibs.
10, 000
10,000
10,000
10,000
10.000
30,000
30,000
30, 000
30,000
30,000
32,000
32,000
32,000
32,000
25,500
25, 500
25,500
22,000
22, 000
10,000
7,500
25,500
25, 500
25,500
25,500
14,000
10, 000
10, 000
16,000
9,000
7,500
7,500
24,000
24, 000
24,000
7,500
7,500
14,000
16,000
16,000
16,000
10,000
16,000
10,000
16, 000
19, 700
19,700
19,700
10,000
10, 000
Vehicle
Type
Van
Van
Van
Van
Van
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Rental
School Bus
School Bus
School Bus
School Bus
School Bus
Stake
Pickup
Line
Line
Line
Line
Van
Service
Service
Service
Service
Service
Service
Freight Van
Freight Van
Freight Van
Service
Service
Service
Service
Service
Service
Wrecker
Service
Stake
Service
Test
Miles
3,613
1,657
3,469
3,366
2,192
6, 250
6,317
6..203
6,292
6,352
3,429
5,436
4,465
4, 261
10,968
10.063
9.159
4.874
2,422
2,794
5,579
1,499
827
2,998
586
1,345
2,414
2,001
4,647
4,461
6, 171
1,976
HC, ptim CO. %
285
262
249
277
207
174
220
215
249
207
281
182
251
239
280
274
264
272
190
151
261
288
365
255
261
303
180
218
262
257
260
284
Transferred to
Trans
iferred to
Transferred to
1,569
3,346
6,756
4.58T
4,174
7, 078
656
2,848
1,623
3,863
Bucket Truck 7,639
Service
Service
Crew Truck
Crew Truck
5,616
2,038
2, 788
2,636
285
294
325
189
212
194
189
210
231
241
260
223
280
264
247
1.47
1. 70
1.90
2.15
1.40
0. 94
3.81
2.24
2.14
2.60
1.63
0.87.
1.82
1.53
1.05
1.21
1.08
1.13
1.61
1.04
0.54
2.77
2.27
2.08
2.38
1.67
0.43
0.48
0.63
0.88
0.94
1.26
another city
another city
another city
1.45
0.97
1.13
0.60
0.31
0. 48
0.45
0.70
0.48
0.58
1.07
1.27
1.55
1.45
2.60
NO,
Obs.
1655
1875
1095
1489
948
2241
1512
1926
1960
1549
1313
1966
1317
1450
2238
2212
2469
2770
2211
1850
2241
1137
1642
1493
879
2233
1541
1719
3204
2499
2661
2632
2628
2732
2711
1696
3347
2522
1075
2572
2501
2007
1947
2155
2384
2319
1743
, ppm
Corr.
1728
1819
1071
1444
881
2079
1473
1812
1885
1458
1348
1701
1246
1495
1958
2146
2395
2620
2663
1726
2184
1157
1704
1493
924
2139
1450
1617
2948
2394
2218
2445
2299
2391
2608
1703
3093
2330
980
2366
2280
1993
1857
2114
2384
2328
1749
Unit
No.
I
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
*Hi-lo means two-speed rear axle.
-------
TABLE D-2 (Cont'd). VEHICLE DESCRIPTION AND SECOND ROUND EMISSION RESULTS
"4" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF NOVEMBER 1. 1971)
Emission Results
unit
No
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
B3
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
i nn
Date
T'-%ted
4-15-71
4-13-71
4-15-71
4-12-71
5-8-71
5-17-71
5-21-71
5-7-71
5-8-71
5-6-71
5-6-71
5-18-71
5-19-71
5-26-71
5-25-71
4-5-71
4-5-71
5-18-71
6-10-71
6-10-71
6-16-71
6-15-71
6-14-71
6-10-71
6-5-71
6-6-71
6-6-71
6-5-71
6-5-71
5-26-71
5-27-71
5-27-71
6-1-71
6-1-71
6-6-71
6-5-71
6-6-71
6-6-71
6-5-71
6-3-71
6-2-71
6-7-71
6-4-71
6-4-71
6-12-71
6-11-71
6-11-71
6-8-71
A-A.71
Truck
No.
93
105
106
122
311
313
315
316
317
253
254
391
392
582
581
251
252
360
5133
5140
5097
5106
5130
5135
M-78
M-80
M-98
SH-680
SH-699
1029
134
135
239
240
250
L-4I
M-77
M-87
M-90
M-95
2179
2120
27
2073
2121
4T1
4T16
1T22
2T9
?TI2
Vehicle
Source
Pearl
Pearl
Pearl
Pearl
C. W.B.
C. W. B.
C. W. B.
C. W. B.
C. W. B.
C. W.B.
C. W. B.
C. W.B.
C. W. B.
Red Arrow
Red Arrow
C. W.B.
C. W.B.
C. W. B.
C. P.S.B.
C.P.S.B.
C. P.S. B.
C. P.S. B.
C. P.S.B.
C. P.S. B.
State Hosp
State Hosp
State Hosp
State Hosp
State Hosp
Lone Star
Herder
Herder
Herder
Herder
C.W.B.
State Hosp
State Hosp
State Hosp
State Hosp
State Hosp
City P&R
City P&R
B.M. W.
City P&R
City P&R
B.C.R.D.
B.C.R.D.
B.C.R.D.
B.C.R.D.
B.C.R. D.
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
Engine
Make
IHC
GMC
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Dodge
Dodge
Dodge
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
IHC
Dodge
Dodge
Dodge
Ford
GMC
Chevrolet
Ford
Ford
Ford
Ford
Chevrolet
Dodge
Dodge
Dodge
Dodge
Dodge
IHC
Ford
Ford
Chevrolet
Ford
Ford
Ford
Ford
Ford
Ford
CID
304
292
318
300
304
304
304
304
304
307
307
366
366
318
318
318
318
361
392
392
345
345
392
392
225
225
225
302
401
307
300
300
361
361
307
225
225
225
225
225
345
360
360
292
360
240
240
330
330
330
Cyl.
V8
6
V8
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
6
V8
V6
V8
6
6
V8
V8
V8
6
6
6
6
6
V8
V8
V8
6
V8
6
6
V8
V8
V8
Trans
Speeds*
3
3
3
3
4
4
4
4
4
4
4
5
5
4
4
3 auto
3 auto
5
6 auto
6 auto
5
5
6 auto
6 auto
4
4
4
3 auto
5
4
5
5
5
5
2 auto
3 auto
3 auto
3 auto
3 auto
3 auto
4
4
4
3 auto
4
3
3
5
4
4
GVW
Ibs.
7,500
7,500
7,500
7,500
19, 700
19; 700
19, 700
19, 700
19, 700
7,500
7,500
32, 000
32,000
24, 000
24, 000
7,500
7,500
25, 500
25.500
25,500
25, 000
25,000
25, 500
25, 500
7,500
7, 500
7,500
6, 800
27,000
6,600
21,000
21,000
22, 000
22,000
7,500
10,000
10,000
7,500
10,000
10, 000
19,000
8,300
7,500
14,000
8,300
7,500
7,500
21, 000
21,000
21.000
Vehicle
Type
Delivery
Delivery
Delivery
Delivery
Crew Truck
Service
Service
Service
Service
Service
Service
Crane
Crane
Freight
Freight
Meter
Service
Dump
Line
Line
Digger
Digger
Line
Line
Pickup
Pickup
Pickup
Van
Bus
Delivery
Freight
Freight
Freight
Freight
Service
Laundry
Grounds
Service
Maintenance
Grounds
Water Truck
Maintenance
Repair
Maintenance
Maintenance
Maintenance
Welder
Water Truck
Water Truck
Water Truck
Test
Miles
2,815
6,021
2,867
5, 260
2,575
4,028
2,443
978
2, 270
1,311
3,833
534
195
7,679
5,170
2,489
2,216
5,198
856
2,331
4,596
4,905
2,619
1,722
1,158
713
889
1,808
3,378
10,511
7,079
4, 736
4,690
9,320
Wrecked
1,007
910
2,337
1,599
790
255
2,104
5,482
940
969
5,392
3,849
8,182
4,932
3.572
HC, ppm
290
198
341
215
305
206
295
240
233
245
192
186
139
251
316
236
235
293
304
292
269
258
375
309
319
260
271
236
329
284
214
150
331
377
244
237
280
255
230
282
280
298
208
304
327
344
300
338
349
C0,%
1.46
0.56
1.56
0. 34
1.41
1.30
1.41
1.30
1.22
3.39
2.56
0. 76
1. 11
1.76
2.03
1.92
1.97
2.12
1.92
2.16
1.01
0. 81
3. 02
1. 71
1.95
1. 88
1. 53
1.03
4. 75
2.98
0.40
0.65
1.41
1.93
1.88
1. 73
1.61
2.40
1. 70
1.08
1.73
2.23
0.84
2.55
1.13
1.54
0.52
0. 81
0. 91
NO,
Obs.
1987
3136
1958
3488
1917
1257
2517
2332
2067
1539
1199
1084
483
2071
2457
1596
1430
1651.
1393
1346
2227
2270
1061
1629
2117
2221
2404
2001
855
2336
1623
2521
1861
2088
2211
2414
2249
2479
2367
1897
1850
1680
2579
1451
1703
1865
3009
3331
273S
ppm
Corr.
1973
3114
1876
3314
1925
1233
2683
2451
2075
1617
1260
1146
483
2183
2550
1677
1503
1745
1446
1370
2227
2386
1080
1691
2161
2283
2454
2009
858
2504
1673
2599
1956
2194
2273
2424
2312
2548
2376
1999
1850
1648
2579
1481
1734
1899
3063
3268
2686
Unit
No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
*Hi-lo means two-speed"?ear axle.
-------
TABLE D-2 (Cont'd*. VEHICLE DESCRIPTION AND SECOND ROUND EMISSION RESULTS
"4" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF NOVEMBER 1, 1971)
Emission Results
Unit
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
Date
Tested
6-11-71
6-7-71
6-16-71
6-4-71
6-4-71
6-2-71
6-3-71
6-3-71
6-3-71
6-1-71
6-1-71
6-4-71
6-11-71
6-9-71
6-10-71
6-3-71
6-3-71
6-9-71
6-9-71
6-9-71
6-20-71
6-20-71
6-20-71
6-20-71
6-8-71
6-8-71
8-7-71
8-7-71
8-21-71
8-9-71
8-9-71
8-18-71
8-10-71
8-13-71
9-9-71
8-12-71
9-21-71
0-20-71
8-17-71
8-20-71
8-21-71
9-23-71
9-7-71
9-15-71
9-24-71
9-13-71
10-22-71
9-13-71
9-24-71
10-25-71
10-25-71
10-22-71
Truck
No.
4T23
7
34
2085
2122
2119
2123
2168
2169
2081
2082
2170
51346
51375
51383
4364
16
043247
043144
043327
98
101
102
105
043221
042519
1085
1086
1088
1353
1347
1355
1340
1348
1345
1349
1365
1346
1364
1363
1087
496
497
503
3
1
5
2
7
4
1ST
6
Source
B.C.R.D.
B.M. W.
Southern
City P&R
City P&R
City P&R
City P&R
City P&R
City P&R
City P&R
City P&R
City P&R
C.P.S.B.
C.P.S.B.
C.P.S.B.
Elmore
Elmore
P.O.D.
P.O.D.
P.O.D.
Facs
Facs
Facs
Facs
P.O.D.
P.O.D.
Lone Star
Lone Star
Lone Star
S.A.P.W.
S.A.P.W.
C.P.W.
S.A.P.W.
S.A.P.W.
S.A.P.W.
S.A.P.W.
S.A.P.W.
S.A.P. W.
S.A.P.W.
S.A.P.W.
Lone Star
ABC
ABC
ABC
JFC
JFC
JFC
JFC
JFC
JFC
Southern
JFC
Vehicle
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
Engine
Make CID
Ford 330
Ford 360
GMC 427
Chevrolet 307
IHC 392
Ford 360
Chevrolet 307
Chevrolet 307
Chevrolet 307
Chevrolet 307
Chevrolet 307
Chevrolet 307
IHC 392
IHC 392
IHC 392
GMC 350
GMC 350
Dodge 318
Dodge 318
Dodge 318
GMC 292
GMC 292
GMC 292
GMC 292
Dodge 318
Dodge 318
Ford 391
Ford 391
Ford 391
IHC 392
IHC 392
IHC 392
IHC 392
IHC 392
IHC .392
IHC 392
IHC 392
IHC 392
IHC 392
IHC 392
Ford 391
IHC 478
IHC 478
IHC 478
Chev olet 350
Chev olet 350
Chev olet 350
Chev olet 350
Chev olet 350
Chev olet 350
Chev olet 427
Chev olet 350
Cyl.
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
6
6
V8
\8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
Vo
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
Trans
Speeds*
5
4
5
3
5
4
3
4
4
3
3
4
6 auto
6 auto
6 auto
4
4
3 auto
3 auto
3 auto
4
4
4
4
3 auto
3 auto
5
5
5
6 auto
6 auto
6 auto
6 auto
6 auto
6 auto
6 auto
6 auto
6 auto
6 auto
6 auto
5
5
5
5
4
4
4
4
4
4
5
4
GVW
Ibs
21, 000
7, 500
32,500
7,500
25,500
8, 300
7, 500
14, 000
14, 000
7, 500
7, 500
14, 000
24,000
25, 500
25,500
14, 000
10, 000
10,000
10, 000
10, 000
10, 000
10,000
10, 000
10,000
10, 000
10,000
27,500
27,500
27, 500
34, 000
34,000
34, 000
34, 000
34, 000
34, 000
34,000
34, 000
34, 000
34, 000
34, 000
27,500
32,000
32, 000
32, 000
24,000
24, 000
24,000
24, 000
24, 000
24,000
32, 500
24, 000
Vehicle
Type
Water Truck
Maintenance
Moving
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Construction
Line
Line
Moving
Moving
Mail
Mail
Mail
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Delivery
Rental
Rental
Rental
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Moving Co.
Delivery
Test
Miles
9,154
4,821
32,371
4,092
403
958
1,375
1,190
296
2,196
1,909
4,297
478
952
975
583
1,040
2,076
3,016
1, 885
4,672
5,392
6,689
3,386
2, 031
2,085
2,173
3, 798
3,906
4, 768
4, 716
3,324
4, 290
3, 348
4, 108
2, 447
5, 070
3,012
2, 815
3,366
4, 147
15,457
1, 161
7,791
7, 750
7, 267
9,473
7, 044
9, 203
11, 016
14,620
10, 383
HC.ppm
359
292
236
212
312
274
272
241
290
256
246
237
329
322
264
208
197
338
321
318
292
317
232
270
322
275
202
235
314
253
245
187
216
229
225
290
288
io£
284
258
270
399
243
252
212
253
196
359
272
208
242
420
CO, %
1.22
2.19
2.18
2.36
1.88
2.29
1.99
2. 55
2.32
2.88
2.41
2.42
3.66
2.11
2. 22
1.40
0.65
1.92
2.08
1.59
1.52
1.99
1.61
1.04
2.05
1.98
0. 77
1.09
2.74
2.07
1.88
3.29
3.09
6.56
2.40
2.83
2.94
2.79
2.25
2.10
1.76
1. 72
1.53
1.68
1.09
2.14
2. 03
2. 55
2.10
1.46
2.59
1. 84
NO,
Obs.
2734
2172
1389
1847
2173
1597
1922
1776
1653
1811
1797
2l68
920
1282
1332
1807
1900
1804
1475
1616
2194
2445
1221
2006
1252
1108
2467
2638
1947
1904
1393
1267
738
434
1251
1641
1578
1980
1704
2090
2094
2289
1312
1766
1511
1435
1130
1094
996
1287
927
1729
ppm
Corr.
2783
2131
1389
1886
2173
1567
2001
1776
1653
1903
1889
2l68
955
1282
1356
1845
1959
1770
1446
1585
2203
2496
1226
2048
1316
1172
2576
2693
1947
1952
1422
1290
759
429
1274
1730
1567
2067
1692
2105
2071
2346
1336
1803
1553
1489
1101
1136
989
1319
921
1677
Unit
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
*Hi-lo means two-speed rear axle.
-------
o
00
TABLE D-3. VEHICLE DESCRIPTION AND THIRD ROUND EMISSION RESULTS
"8" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF FEBRUARY 1, 1972)
Emission Results
Unit
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
SO
Date
Tested
6-22-71
6-21-71
6-14-71
6-21-71
6-23-71
8-20-71
8-18-71
8-19-71
8-19-71
8-18-71
7-25-71
8-12-71
8-12-71
8-12-71
8-1-71
8-3-71
6-28-71
6-28-71
8-3-71
8-11-71
8-24-71
9-13-71
9-ZD-71
1-20-72
9-21-71
9-7-71
8-23-71
8-30-71
8-26-71
9-1-71
9-2-71
9-2-71
12-10-70
12-10-70
12-10-70
9-2-71
9-1-71
8-27-71
J-3-71
8-25-71
9-8-71
8-23-71
8-25-71
9-3-71
8-30-71
8-26-71
10-10-71
9-25-71
10-19-71
10-19-71
Truck
No.
PO41001
PO40999
PO40997
PO41000
PO41002
353
349
351
350
352
24340
24341K
24343
24342
56
53
55
6
54
72341
72218
5131
5132
5136
5141
4952
6615
6616
4824
4726
4728
47290
671
672
673
4727
4730
4951
4810
8811
6855
6617
6856
4671
6857
4950
312
314
301
302
Vehicle Engine
Source Year
P.O.D. 1970
P.O.D. 1970
P.O.D. 1970
P.O.D. 1970
P.O.D. 1970
ABC 1970
ABC 1970
ABC 1970
ABC 1970
ABC 1970
Ryder 1970
Ryder 1970
Ryder 1970
Ryder 1970
N.S.S.D. 1970
N.S.S.D. 1970
N.S.S.D. 1970
N.S.S.D. 1970
N.S.S.D. 1970
Hertz 1970
Hertz 1970
C.P.S.B. 1971
C.P.S.B. 1970
C. P. S. B. 1971
C.P.S.B. 1971
C.P.S.B. 1971
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
Brown Exp 1971
Brown Exp 1971
Brown Exp 1971
C.P.S.B. 1970
C.P.S.B. 197D
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.P.S.B. 1970
C.W.B. 1970
C.W.B. 1970
C.W.B. 1970
C.W.B. 1970
Make CID
Dodge 318
Dodge 318
Dodge 318
Dodge 318
Dodge 318
White 400
White 400
White 400
White 400
White 400
IHC 478
IHC 478
IHC 478
IHC 478
IHC 345
IHC 345
IHC 345
IHC 345
IHC 345
Ford 300
Ford 240
IHC 392
.IHC J92
IHC 392
IHC 392
IHC 304
Ford 300
Ford 300
Ford 300
Chevrolet 292
Chevrolet 250
Chevrolet 250
Ford 300
Ford 300
Ford 300
Chevrolet 250
Chevrolet 250
IHC 304
Ford 300
Ford 300
Ford 300
Ford 300
Ford 300
Ford 300
Ford 300
IHC 304
IHC 304
IHC 304
IHC 304
IHC 304
Cyl.
V8
V8
V8
V8
V8
6
6
6
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
V8
V8
V8
V8
V8
6
6
6
6
6
6
6
6
6
6
6
V8
6
6
6
6
6
6
6
V8
V8
V8
V8
V8
Trans
Speeds*
3 auto
3 auto
3 auto
3 auto
3 auto
5 Hi-Lo
5 Hl-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5
5
5
5
5
3 auto
3 auto
3 auto
3 auto
3 auto
3 auto
4
4
4
4
4
4
4
5
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
GVW
Ibs
10,000
10,000
10,000
10,000
10,000
30,000
30,000
30,000
30,000
30,000
32.000
32, 000
32,000
32,000
25, 500
25,500
25,500
22,000
22, 000
10,000
7,500
25,500
25, 500
25.500
25. 500
14,000
10,000
10,000
16,000
9,000
7,500
7,500
24,000
24,000
24, 000
7,500
7,500
14,000
16,000
16,000
16,000
10,000
16,000
10,000
16,000
19, 700
19,700
19, 700
10,000
10.000
Vehicle
Type
Van
Van
Van
Van
Van
Tractor
Tractor
Tractor
Tractor
T ractor
Tractor
Tractor
Tractor
Tractor
School BUB
School Bus
School Bus
School Bus
School BUB
Stake
Pick-up
Line
Line
Line
Line
Van
Service
Service
Service
Service
Service
Service
Freight
Freight
Freight
Service
Service
Service
Service
Service
Service
Wrecker
Service
Stake
Service
Bucket Truck
Service
Service
Crew Truck
Crew Truck
Test
Miles
6.565
3,867
6,305
6,661
4,047
12,906
12,217
12,599
12,636
12,250
7,386
15,087
9.946
8,501
16,628
15.367
13,734
7,821
7,550
6,039
13,398
5,171
3,471
7,4i<4
1,461
6,364
4,300
5,550
9,466
10,885
14,994
5,450
NO, ppm
HC, m
378
325
326
347
269
306
194
235
140
151
294
231
259
241
253
261
285
339
193
184
274
213
315
261
185
225
120
173
169
212
222
239
Transferred to
it
4,209
8.123
14,835
10, 152
9,323
13,452
2,122
6,698
4,812
9,041
15,597
12,041
4.589
6,795
5,855
M
293
284
273
251
102
158
181
184
239
160
198
219
267
232
225
>m CO, %
1.58
1.85
1.77
2.24
1.39
1.67
3.57
2.73
2. 57
4.23
1.68
1.31
2.78
1.82
1.34
1.18
1.18
0.92
1.52
0.94
0.85
2.94
2.26
1.57
2.00
0.86
0.56
0.45
0.69
0.93
1.09
1.55
another city
M II
1.84
1.41
1.14
3.52
0.19
0.47
0.83
0.50
0.46
0.76
1.75
0.88
1.47
1.50
2. 14
Obs.
1689
1470
1312
1508
805
2515
1538
2098
1960
717
1325
1838
1613
1404
2116
2338
1939
2461
2348
2010
2258
1103
1871
2230
933
2353
1140
2006
3180
2452
2483
2328
2295
2492
2423
1457
3243
1976
2382
3407
2355
2309
2113
2884
2618
2278
1771
Corr.
1753
1558
1362
1598
799
2543
1544
2098
1960
720
1353
1937
1700
1480
2256
2492
2106
2616
2517
1996
2242
1061
1835
1875
933
2353
1168
1954
3158
2435
2456
2302
2279
2475
2491
1457
3159
1925
2442
3342
2338
2249
2098
2509
2599
2303
1790
Unit
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Ill-Lo means two-speed rear axis.
-------
TABLE D-3 (Cont'd). VEHICLE DESCRIPTION AND THIRD ROUND EMISSION RESULTS
"8" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF FEBRUARY 1, 1972)
Emission Results
Unit
No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Date
Tested
8-5-71
8-4-71
8-5-71
8-4-71
9-25-71
9-25-71
10-9-71
9-25-71
10-9-71
10-3-71
10-3-71
10-10-71
10-9-71
9-21-71
9-21-71
10-3-71
10-3-71
10-16-71
9-13-71
9-9-71
9-9-71
9-22-71
9-8--71
9-21-71
10-16-71
10-16-71
10-16-71
10-23-71
10-23-71
10-21-71
9-23-71
9-23-71
9-28-71
9-27-71
1-12-71
10-17-71
10-16-71
10-17-71
10-24-71
10-16-71
10-4-71
10-13-71
9-22-71
10-12-71
10-12-71
10-30-71
10-30-71
10-29-71
11-17-71
11-17-71
Truck
No.
93
105
106
122
311
313
315
316
317
253
254
391
392
582
581
251
252
360
5133
5140
5097
5106
5130
5135
M-78
M-80
M-98
SH-680
SH-699
1029
134
135
239
240
250
L-41
M-77
M-87
SH-M90
SH-M95
2179
2120
27
2073
2121
4T-1
4T-16
1T22
2T9
2T12
Sourc«
Pearl
Pearl
Pearl
Pearl
C. W.B.
C. W.B.
C. W. B.
C. W.B.
C. W. B.
C. W.B.
C. W.B.
C. W. B.
C. W.B.
Red Arrow
Red Arrow
C. W. B.
C. W. B.
C. W. B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
C.P.S.B.
State Hosp
State Hosp
State Hosp
State Hosp
State Hosp
I one Star
Herder
Herder
Herder
Herder
C.W.B.
State Hosp
State Hosp
State Hosp
State Hosp
State Hosp
City PtR
City PfcR
B.M. W.
City P&R
City PJ.R
B.C. R.D.
B. C R. D.
B.C. R.D.
B. C. R.D.
B. C. R. D.
Vehicle
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1 «wto
4
4
4
3 auto
5
4
5
5
5
5
2 auto
3 auto
3 auto
3 auto
3 auto
3 auto
4
4
4
3 auto
4
3
3
5
4
4
GVW
Ibs
7.500
7,500
7, 500
7,500
19, 700
19, 700
19, 700
19, 700
19,700
7,500
7,500
32,000
32,000
24, 000
24, 000
7, 500
7, 500
25, 500
25,500
25,500
25,000
25, 000
25, 500
.25.SQO
7,500
7,500
7, 500
6,800
27,000
6,600
21,000
21,000
22,000
22,000
7, 500
10,000
10,000
7, 500
10,000
10,000
19,000
8,300
7,500
14,000
8, 300
7, 500
7,500
21, 000
21,000
21,000
Vehicle
Type
Delivery
Delivery
Delivery
Delivery
Service
Service
Service
Service
Service
Service
Service
Crane
Crane
Freight
Fr-eight
Meter
Service
Dump
Line
Line
Digger
Digger
Line
Lute
Pickup
Pickup
Pickup
Van
Bus
Delivery
Freight
Freight
Freight
Freight
Service
Laundry
Grounds
Service
Maintenance
Grounds
Water Truck
Maintenance
Repair
Maintenance
Maintenance
Maintenance
Welder
Water Truck
Water Truck
Water Truck
Test
Miles HC
7,321
12,412
6, 520
12,276
4,406
7,311
4,611
3,024
5,090
2, 547
8,677
1,440
991
13,312
9,817
6,457
4,979
11,070
3,046
7,902
7,163
7,439
7,267
-4,-859
2.927
1,445
1,903
2,982
6,458
23,078
14,432
9, 212
8,080
14,979
NO, ppm
. ppm
241
219
292
218
243
249
270
199
247
185
323
115
137
275
298
229
221
305
213
243
258
199
287
274
245
218
235
214
312
289
210
151
312
311
CO, %
1.73
0.85
1.44
0.47
1.36
1.31
1. 58
1.14
1. 17
3.03
3. 10
1. 18
1. 81
1.67
1.91
1.85
1. 73
2. 38
1.66
1. 51
1.41
1.07
2.66
2.49
2. 19
2.08
1.84
1. 67
5.07
2.89
4. 55
0. 95
1.54
2.41
This truck was wrecked May 25,
2.198
2, 330
4,652
3, 500
1,918
916
4. 197
9,695
1,672
1,715
10,882
8,498
16.738
11,214
10,^61
199
182
184
194
185
256
227
163
170
258
289
281
278
298
406
1.96
1.91
1.61
1.94
1.60
0.99
1.76
2. 50
0. 84
2. 37
2.70
3.41
0.83
0. 88
1. 30
Ohs.
2236
3445
2200
3811
2592
2793
2097
1835
2598
1821
1737
1121
775
2270
2632
1644
1522
1786
1403
1625
2109
2252
1322
2008
2337
2021
2493
1956
899
1642
1291
1539
1929
1903
1971
1912
2441
2341
2755
2309
2192
1913
1712
2719
1521
1181
1106
2952
2973
2518
Corr.
2384
3672
2345
3879
2665
2843
2204
1886
2730
1828
1744
985
784
2227
2521
1626
1511
1859
1350
1583
2066
2209
1288
2008
2321
2029
2578
1956
899
1532
1335
15V1
1915
1890
1946
2509
2383
2628
2373
2216
1934
1679
2730
1504
1136
1110
2964
3006
2545
Unit
No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
til
Hi
83
84
85
86
87
88
S9
90
91
92
93
94
95
96
97
98
99
100
*lh-Lo mean* two-ipeetl rear »xle.
-------
TABLE D-3 (Cont'd). VEHICLE DESCRIPTION AND THIRD ROUND EMISSION RESULTS
"8" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF FEBRUARY 1, 197Z)
Eminion Reiulti
Unit
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
.140
141
142
143
144
145
146
147
148
149
150
151
152
Date
Tertrd
10-29-71
10-14-71
10-25-71
10-13-71
10-4-71
10-3-71
10-2-71
10-5-71
10-5-71
10-11-71
9-30-71
10-15-71
10-18-71
10-26-71
10-18-71
10-21-71
10-22-71
1 1-24-71
11-24-71
11-26-71
10-23-71
10-23-71
10-24-71
10-24-71
12-14-71
11-26-71
12-04-71
12-04-71
12-05-71
12-7-71
12-9-71
12-13-71
12-13-71
12-7-71
12-9-71
12-7-71
12-8-71
12-10-71
12-13-71
12-10-71
12-5-71
-10-72
-7-72
-5-72
-24-72
-14-72
-14-72
-24-82
-24-72
-24-72
-19-72
-24-72
Truck
No.
4T23
7
34
2085
2122
2119
2123
2168
2169
2081
2082
2170
5134
51375
51383
4364d7)
16
043247
043144
043327
98
101
102
105
043221
042519
1085
1086
1088
1353
1347
1355
1340
1348
1345
1349
1365
1346
1364
1363
1087
496
497
503
3
1
5
2
7
4
1ST
6
Source
B. C. R. D.
B. M. W.
Southern
City PfcR
City PfcR
City PfcR
City PbR
City PfcR
City PfcR
City PfcR
City PfcR
City PfcR
C. P. S. B.
C. P. S. B.
C. P. S. B.
Elmore
Elmore
P. 0. D.
P. O. D.
P. O. D.
Faci
Faci
-Faci
Faci
P. O. D.
P. O. D.
Lone Star
Lone Star
Lone Star
S. A. P. W.
S. A. P. W.
C. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
Lone Star
ABC
ABC
ABC
JFC
JFC
JFC
JFC
JFC
JFC
Southern
JFC
Vehicl
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
e Engin
M*ke -CID
Ford 330
Ford 360
CMC 427
Chevrolet 307
IHC 392
Ford 360
Chevrolet 307
Chevrolet 307
Chevrolet 307
Chevrolet 307
Chevrolet 307
Chevrolet 307
IHC 392
IHC 392
IHC 392
CMC 350
CMC 350
Dodge 318
Dodge 318
Dodge 318
CMC 292
CMC 292
CMC 292
CMC 292
Dodge 318
Dodge 318
Ford 391
Ford 391
Ford 391
IHC 392
IHC 392
IHC 392
me 392
IHC 392
IHC 392
IHC 392
IHC 392
IHC 392
IHC 392
IHC 392
Ford 391
IHC 478
IHC 478
IHC 478
Chevrolet 350
Chevrolet 350
Chevrolet 350
Chevrolet 350
Chevrolet 350
Chevrolet 350
Chevrolet 427
Chevrolet 350
i
Cyl.
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
VB
Irani
Spead**
5
4
5
3
5
4
3
4
4
3
3
4
6 auto
6 auto
6 auto
4
4
3 auto
3 auto
3 auto
4
4
4
4
3 auto
3 auto
5
5
5
6 auto
6 auto
6 auto
6 auto
6 auto
6 auto
6 auto
6 auto
6 auto
6 auto
6 auto
5
5
5
5
4
4
4
4
4
4
5
4
GVW
Ibs
21.000
6,100
32, 500
7,500
25,500
8,300
7.500
10,000
10,000
7, 500
7,500
10,000
24,000
25,500
25, 500
14,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
27, 500
27,500
27, 500
34,000
34,000
34,000
34,000
34,000
34,000
34, 000
34, 000
34, 000
34, 000
34,000
27, 500
32,000
32,000
32,000
24, 000
24, 000
24,000
24, 000
24, 000
24, 000
32, 500
24, 000
Vehicle
Type
Water Truck
Maintenance
Moving
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Construction
Construction
Construction
Moving
Moving
Mail
Mail
Mail
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Delivery
Tractor
Rental
Rental
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Moving Co.
Delivery
Teit
Miles
18,295
10,289
26, 526
7.815
1,864
2,844
3,026
3,882
393
3,970
3,937
9,848
3,021
6,848
6.785
2.497
3, 546
5,687
7,411
4,275
9,932
10,802
13,498
6,574
6,497
4,872
4,641
8,148
7,710
9,573
8,889
6,699
9,542
6,978
7,796
5,306
7,115
7,175
5,665
6,296
7,647
23,990
11,055
16.893
14,684
15,159
14,165
15,741
17,307
1 5, 475
16,234
11,786
JiG, pprn
367
274
245
204
247
232
210
212
247
426
228
207
340
210
262
215
139
257
295
269
181
194
95
173
326
296
190
213
316
266
302
491
539
214
299
302
377
338
301
275
292
506
252
233
193
280
167
260
364
307
1838
216
CO. %
3.05
2.33
3.68
2. 15
1. 38
2.25
1.97
2.79
2.47
2. 30
2.59
2. 32
4.06
1.63
2.05
1.83
1.07
1.67
1.99
1. 58
0.80
1.91
1.40
0.63
2. 14
1.70
0.72
0.87
2.41
2.60
1.73
11.92
3.67
2. 16
2. 17
2.77
3.00
2.49
1.77
2.91
1.99
1.57
1.40
1.28
1.16
1.35
1.46
2.49
2.39
1.62
2.07
1.06
NO,
Qb*
1883
1867
627
J694
2117
1794
1799
1815
1775
2425
1889
2064
869
1587
1644
2080
1896
1871
1620
1753
2528
2357
1280
2502
2112
1745
2655
2621
1954
1742
2233
272
939
1609
2147
1923
1524
2021
1659
1679
1995
2414
1895
1803
1502
1829
1495
1212
1010
1594
763
1566
pprn
-Corr.
1827
1818
625
1712
2140
1780
1849
1889
1912
2333
1923
2064
862
1615
1690
1914
1816
1637
1417
1492
2462
2218
1226
2354
1734
1485
2206
2204
1680
1749
2045
266
900
1560
2332
1903
1638
1669
1677
1403
1716
2202
1516
1498
1529
1425
1407
1234
884
1564
749
1599
Unit
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
1 15
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
-------
TABLE D-4. VEHICLE DESCRIPTION AND FOURTH ROUND EMISSION RESULTS
"12" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF JULY 1, 1972)
Emission Results
Unit
No.
1
2
3
4
D
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Date
Tested
1-25-72
1-25-72
1-26-72
1-26-72
1-27-72
1-31-72
2-2-72
1-28-72
1-31-72
2-2-72
1-18-72
1-20-72
2-17-72
2-14-72
2-29-72
2-3-72
2-3-72
2-4-72
2-8-72
2-14-72
Truck Vehicle
No. Source Year
PO041001 U.S. P.O. 1970
040999 P.O.D. 1970
PO40997 P.O.D. 1970
PO41000 P.O.D. 1970
PO41002 P.O.D. 1970
353 ABC 1970
349 ABC 1970
351 ABC 1970
350 ABC 1970
352 ABC 1970
24340 Ryder 1970
24341K Ryder 1970
24343 Ryder 1970
24342 Ryder 1970
56 N.S.S.D. 1970
53 N.S.S.D. 1970
55 N.S.S.D. 1970
6 N.S.S.D. 1970
54 N.S.S.D. 1970
72341 Hertz 1970
Make
Dodge
Dodge
Dodge
Dodge
Dodge
White
White
White
White
White
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
Ford
Engine
CID
318
318
318
318
318
400
400
400
400
400
478
478
478
478
345
345
345
345
345
300
Cyl.
V-8
V-8
V-8
V-8
V-8
6
6
6
6
6
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
6
Trans
Speeds *
3 Auto
3 Auto
3 Auto
3 Auto
3 Auto
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5
5
5
5
5
3 Auto
GVW
Ibs.
10, 000
10, 000
10,000
10, 000
7, 000
30, 000
30, 000
30,000
30, 000
30, 000
32, 000
32, 000
32, 000
32,000
25,500
25, 500
25,500
22,000
22, 000
10, 000
Vehicle
Type
Van
Van
Van
Van
Van
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
SchoolBus
SchoolBus
SchoolBus
SchoolBus
SchoolBus
Stake
Test
Miles
11,560
9,659
12,171
12, 828
7, 102
20,442
19, 861
19, 073
20, 154
20, 233
19,632
22, 433
21,396
18, 769
32,684
28, 855
28, 088
14,017
2, 029
9, 808
HC, ppjn
322 i
252
247
350
223
235
142
192
311
129
317
635
362
377
273
243
194
271
231
202
CO, %
1.45
1.51
1. 80
2.21
1. 58
1. 44
3.35
2.59
2.81
3.00
1.87
0.80
1.11
1.97
1.41
1.33
1.12
1.32
1.48
1.09
NO,
Obs.
2090
2019
1418
1481
946
2363
1484
1553
1988
1860
1444
1450
1755
1351
1829
2481
2289
2862
2381
1766
ppm
Corr.
1693
1648
1444
1497
918
1928
1140
1359
1710
1469
1444
1183
1329
1278
1816
1824
1648
2229
1979
1671
Transferred
2-7-72
2-8-72
5-2-72
2-15-72
2-15-72
2-11-72
2-16-72
2-10-72
2-10-72
2-9-72
2-9-72
5131 CPSB 1971
5132 CPSB 1970
5136 CPSB 1971
5141 CPSB 1971
4952 CPSB 1971
6615 CPSB 1970
6616 CPSB 1970
4824 CPSB 1970
4726 CPSB 1970
4728 CPSB 1970
4729 CPSB 1970
IHC
IHC
IHC
IHC
IHC
Ford
Ford
Ford
Chev
Chev
Chev
392
392
392
392
304
300
300
300
292
250
250
V-8
V-8
V-8
V-8
V-8
6
6
6
6
6
6
3 Auto
3 Auto
3 Auto
3 Auto
4
4
4
4
4
4
4
25,500
25,500
25, 500
25, 500
14, 000
10,000
10, 000
16, 000
9, 000
7, 500
7,500
Line
Line
Line
Line
Van
Service
Service
Service
Service
Service
Service
9, 139
7, 710
10,673
2,199
12,177
8,327
9,897
15,189
18,393
23, 720
10, 176
215
201
266
177
252
169
185
171
225
255
223
2.63
1.65
1.93
2.30
.86
0.46
0. 50
0.56
1.19
1.39
1. 03
1451
1873
1367
869
2889
2340
1537
3187
2635
2691
2582
1114
1528
1357
752
2513
2036
1262
3066
2524
2096
2133
Transferred to another city
Transferred to another city
Transferred to another city
2-17-72
2-18-72
2-18-72
2-21-72
2-21-72
2-22-72
2-16-72
2-22-72
2-24-72
2-23-72
2-23-72
3-5-72
2-26-72
3-11-72
3-11-72
4727 CPSB 1970
4730 CPSB 1970
4951 CPSB 1970
8810 CPSB 1970
8811 CPSB 1970
6855 CPSB 1970
6617 CPSB 1970
6856 CPSB 1970
4671 CPSB 1970
6857 CPSB 1970
4950 CPSB 1970
312 CWB 1970
314 CWB 1970
301 CWB 1970
302 CWB 1970
Chev
Chev
IHC
Ford
Ford
Ford
Ford
Ford
Ford
Ford
IHC
IHC
IHC
IHC
IHC
250
250
304
300
300
300
300
300
300
300
304
304
304
304
304
6
6
V-8
6
6
6
6
6
6
6
V-8
V-8
V-8
V-8
V-8
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
7,500
7, 500
14,000
16,000
16,000
16, 000
10, 000
16, 000
10, 000
16, 000
19, 700
19, 700
19, 700
10, 000
10,000
Service
Service
Service
Service
Service
Service
Wrecker
Service
Stake
Service
Bucket Tr.
Service
Service
Crew Tr.
Crew Tr.
8,985
11,321
24, 981
16, 873
16,165
19, 156
3, 932
12,986
8,388
16,194
26,608
18,271
7,668
11, 197
8, 858
252
272
236
213
120
156
190
195
272
194
258
242
226
235
234
1. 80
0.68
0.94
4. 78
0.15
0.45
0.57
0.44
0.61
0.50
1.71
0. 94
1.33
1.32
2.24
2026
3134
2626
1364
3043
1880
2994
3121
3051
1987
1650
2950
2432
2767
1735
1653
2698
2182
1284
2927
1809
2395
3087
3051
2023
1581
2510
2160
2582
1728
Unit
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
#Hi-lo means two-speed rear axle.
-------
TABLE D-4 (Cont'd). VEHICLE DESCRIPTION AND FOURTH ROUND EMISSION RESULTS
"12" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF JULY 1, 1972)
Emission Results
Unit
No.
31
:'.i
53
54
55
5b
57
id
59
60
61
tiZ
C3
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Date
Tested
3-1-72
3-30-72
3-1-72
3-30-72
i-Zt -72
3-5-72
2-27-72
3-4-72-
3-4-72
2-27-72
2-27-72
3-11-72
3-18-72
3-1-72
2-29-72
3-18-72
3-18-72
3-29-72
3-1-72
3-1-72
3-2-72
3-2-72
3-23-72
3-8-72
4-29-72
4-29-72
4-29-72
4-8-72
4-8-72
4-5-72
3-22-72
3-23-72
3-22-72
3-21-72
Wrecked
4-8-72
4-9-72
4-9-72
4-9-72
4-20-72
3-15-72
3-28-72
3-29-72
3-25-72
3-25-72
3-31-72
3-31-72
4-4-72
4-3-72
4-3-72
Truck
No.
93
105
106
122
311
313
315
316
317
253
254
391
392
582
581
251
252
360
5133
5140
5097
5106
5130
5135
M-78
M-80
M-98
SH680
SH699
1029
134
135
239
240
L-41
M-77
M-87
M-9
M-n5
2179
2120
27
2073
2121
4T1
4T-16
1T22
2T9
2T12
Vehicle
Source Year
Pearl 1970
Pearl 1970
Pearl 1970
Pearl 1970
CWB 1970
CWB 1970
CWB 1970
CWB 1970
CWB 1970
CWB 1970
CWB 1970
CWB 1970
CWB 1970
RedArrowl970
RedArrowl970
CWB 1970
CWB 1970
CWB 1970
CPSB 1970
CPSB 1970
CPSB 1971
CPSB 1971
CPSB 1970
CPSB 1970
St. Hosp. 1970
St. Hosp. 1970
St. Hosp. 1970
St. Hosp 1970
St. Hosp 1970
LoneStar 1970
Herder 1970
Herder 1970
Herder 1970
Herder 1970
St.l-iosp 1970
St. Hosp 1970
St.Hosp 1970
St.Hosp. 1970
St. Hosp. lp"0
CPR 1970
CPR 1970
BMW 1970
CPR 1970
CPR 1970
BCRD 1970
BCRD 1970
BCRD 1970
BCRD 1970
BCRD 1970
Make
IHC
CMC
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
Chev
Chev
Chev
Chev
Dodge
Dodge
Dodge
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
IHC
Dodge
Dodge
Dodge
Ford
CMC
Chev
Ford
Ford
Ford
Ford
Dodge
Dodge
Dodge
Dodge
Dodge
IHC
Ford
Ford
Chev
Ford
Ford
Ford
Ford
Ford
Ford
Engine
CID
304
292
318
300
304
304
304
304
304
307
307
366
366
318
318
318
318
361
392
392
345
345
392
392
225
225
225
302
401
307
300
300
361
361
225
225
225
225
2Z5
345
360
360
292
360
240
240
330
330
330
Cyl.
V-8
6
V-8
6
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
6
6
6
V-8
V-6
V-8
6
6
V-8
V-8
6
6
6
6
6
V-8
V-8
V-8
6
V-8
6
6
V-8
V-8
V-8
Trans
Speeds *
3
3
3
3
4
4
4
4
4
4
4
5
5
4
4
3
3
5
6
6
5
5
6 Auto
6 Auto
4
4
4
3 Auto
5
4
5
5
5
5
3 Auto
3 Auto
3 Auto
3 Auto
3 Auto
4
4
4
3 Auto
4
3
3
5
4
4
GVW
Ibs.
7, 500
7,500
7, 500
7,500
19, 700
19, 700
19, 700
19, 700
19,700
7,500
7, 500
32,000
32, 000
24, 000
24,000
7,500
7, 500
25, 500
25,500
25,500
25,000
25,000
25,500
25, 500
7, 500
7, 500
7, 500
6,800
27, 000
6,600
21,000
21,000
22, 000
22, 000
10,000
10,000
7,500
10,000
10,000
19,000
8,300
7,500
14,000
8,300
7, 500
7,500
21,000
21,000
21,000
Vehicle
Xype
Delivery
Delivery
Delivery
Delivery
Service
Service
Service
Service
Service
Service
Service
Crane
Crane
Freight
Freight
Meter
Service
Dump
Line
Line
Digger
Digger
Line
Line
Pickup
Pickup
Pickup
Van
Bus
Delivery
Freight
Freight
Freight
Freight
Laundry
Grounds
Service
Maint.
Grounds
WaterTr.
Maint.
Repair
Maint.
Maint.
Maint.
Welder
WaterTr.
WaterTr.
WaterTr.
Test
Miles
13,680
25,094
13, 798
24, 069
6,689
11,146
7,989
4,486
7, 469
4,889
12,842
3,203
1,896
22,211
16,016
10,821
8, 275
15,700
8.978
18, 022
12,555
12,994
14,981
10,645
5, 321
2, 455
3, 046
8,664
9, 526
34, 837
24,153
15,848
14,450
21,901
3,597
3,468
7,691
5,491
3,066
1,542
6,608
16,338
3.283
2,796
17,218
10,932
20,390
66,227
13, 743
HC, ppm
324
291
287
183
267
225
243
166
244
161
192
182
121
259
355
212
262
282
245
218
302
186
328
322
229
300
285
235
298
259
162
269
329
586
207
230
175
213
268
280
237
243
179
255
211
288
253
2093
418
CO, %
1.82
0. 79
1.60
0.26
1.34
1.22
1.46
1.15
1.09
3.08
3. 24
0-75
1.66
1.68
2.06
1.97
1.74
1. 55
2. 28
1. 86
1.62
0.91
2.98
2.42
2. 10
2. 14
1.44
0.97
4.90
2. 27
3.29
0.51
1. 57
2.48
2. 14
2.06
1.90
2.17
1. 71
1.17
1.55
2.56
0.84
2.20
1.82
1.87
0.73
0.81
1.40
NO,
Obs.
1881
3663
1844
4008
2749
2708
2482
1492
2537
1600
1648
941
439
1641
2112
1440
2408
1965
1253
1477
2602
2787
937
1632
2231
1454
2332
2469
904
1071
1256
3159
1120
2364
2083
2334
1933
2565
1868
2198
1711
1630
2683
1537
1088
2165
1807
2780
2049
ppm
Corr.
1794
2853
1744
3167
2444
2223
2204
1482
2387
1472
1480
»78
378
1682
2072
1218
1880
1653
1054
1167
2095
2274
927
1404
2271
1460
2374
2262
795
1071
1150
3172
1054
2090
1823
2208
1803
2447
1888
2198
1447
1371
2385
1394
H70
1732
1773
2727
2010
Unil
No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Hi-io means two-speed rear axle.
-------
TABLE D-4 (Cont'd). VEHICLE DESCRIPTION AND FOURTH ROUND EMISSION RESULTS
"12" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF JULY 1, 1972)
Emission Results
Unit
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
Date
Tested
3-31-72
4-5-72
4-6-72
3-28-72
3-9-72
3-9-72
3-25-72
3-14-72
3-14-72
3-16-72
3-16-72
3-15-72
4-4-72
4-6-72
4-12-72
4-12-72
6-7-72
4-13-72
4-17-72
4-18-72
5-6-72
5-7-72
5-21-72
5-7-72
5-9-72
5-12-72
5-21-12
5-21-72
5-21-7Z
Converted
4-26-72
4-24-72
Converted
4-20-72
4-19-72
4-24-72
4-25-72
4-27-72
4-26-72
4-20-72
5-21-72
5-22-72
5-4-72
5-22-72
5-17-72
5-11-72
5-12-72
5-12-72
5-17-72
5-11-72
5-3-72
5-10-72
Truck
No.
4T-23
7
34
2085
2122
2119
2123
2168
2169
2081
2082
2170
5134
51375
5138
4364
16
043247
043144
043327
98
101
102
105
043221
042519
1085
1086
1088
to Butane
1347
1355
to Butane
1348
1345
1349
1365
1346
1364
1363
1087
496
497
503
3
1
5
2
7
4
1ST
6
Vehicl
Source Year
BCRD 1970
BMW 1970
Southern 1970
CPR 1970
CPR 1970
CPR 1970
CPR 1970
CPR 1970
CPR 1970
CPR 1970
CPR 1970
CPR 1970
CPSB 1970
CPSB 1971
CPSB 1970
Elmore 1970
Elmore 1970
POD 1971,
POD 1970
POD 1970
FAGS 1970
FAGS 1970
FACS 1970
FAGS 1970
POD 1970
POD 1970
Lone Star 1971
Lone Star 1971
Lone Star 1971
Fuel
SAPW 1971
SAPW 1971
Fuel
SAPW 1971
SAPW 1971
SAPW 1971
SAPW 1971
SAPW 1971
SAPW 1971
SAPW 1971
Lone Star 1971
ABC 1971
ABC 1971
ABC 1971
JFC 1971
JFC 1971
JFC 1971
JFC 1971
JFC 1971
JFC 1971
Southern 1971
JFC 1971
Make
Ford
Ford
CMC
Chev
IHC
Ford
Chev
Chev
Chev
Chev
Chev
Chev
IHC
IHC
IHC
GMC
GMC
Dodge
Dodge
Dodge
GMC
GMC
GMC
GMC
Dodge
Dodge
Ford
Ford
Ford
IHC
IHC
IHC
IHC
IHC
IHC
IHC
JHC
IHC
Ford
IHC
IHC
IHC
Chev.
Chev.
Chev.
Chev.
Chev.
Chev.
Chev.
Chev.
Engine
CID
330
360
427
307
392
360
307
307
307
307
307
307
392
392
392
350
350
318
318
318
292
292
292
292
318
318
391
391
391
392
392
392
392
392
392
392
392
392
391
478
478
478
350
350
350
350
350
350
427
350
Cyl.
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
6
6
6
6
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
Trans
Speeds *
5
4
5
3
5
4
3
4
4
3
3
4
6 Auto
6 Auto
6 Auto
4
4
3 Auto
3 Auto
3 Auto
4
4
4
4
3 Auto
3 Auto
5
5
5
6-Auto
6-Auto
6 -Auto
6-Auto
6-Auto
6-Auto
6-Auto
6-Auto
6-Auto
5
5
5
5
4
4
4
4
4
4
5
4
GVW
Ibs.
21,000
6, 100
32, 500
7,500
25,500
8,300
7, 500
10,000
10,000
7,500
7, 500
10,000
24, 000
25,500
25,500
14, 000
10, 000
10, 000
10,000
10, 000
10, 000
10, 000
10, 000
10, 000
10, 000
10, 000
27, 500
27,500
27, 500
34, 000
34, 000
34, 000
34, 000
34, 000
34,000
34, 000
34, 000
34, 000
27, 500
32,000
32, 000
32, 000
24, 000
24, 000
24, 000
24,000
24, 000
24, 000
32,500
24, 000
Vehicle
WaterTr.
Maint.
Moving
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Constr.
Constr.
Constr.
Moving
Moving
Mail
Mail
Mail
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Delivery
Rental
Rental
Rental
Delivery
Delivery
Deli ery
Deli ery
Deli ery
Deli ery
Mov ng
Deli ery
Test
Miles
20,454
18,126
46,976
12,227
2,880
3, 756
5,421
7,267
868
6,334
6,337
15, 142
5,377
12,504
24,048
4,481
7,600
8, 135
11,447
7, 045
18,349
18, 550
24, 888
11,917
9,582
6,945
8,412
14, 574
14, 034
12, 173
10, 579
10, 731
11,691
8, 222
11,234
11,450
9, 315
10,738
13,669
35, 472
22, 187
29, 463
19,492
21,830
21, 216
22,938
22,608
21, 178
24, 024
18,526
HC, ppm
480
272
231
174
273
250
208
206
244
244
170
208
232
211
316
211
181
316
345
270
208
224
150
125
352
261
225'
224
340
205
265
223
270
279
321
483
274
271
333
153
236
1922
143
257
162
290
121
220
232
204
CO, %
3.89
2.90
2.85
2. 22
1.86
1.97
1. 94
2.96
2.46
2.49
2. 32
2.54
2.99
1.95
3.02
2.30
1.33
1. 94
2.02
1. 71
. 51
1.96
1.67
0. 75
2.23
1.89
0. 944
0. 74
2.67
1.74
2.48
2.03
2.29
2. 52
2.68
3.96
1. 88
2.60
3.36
1. 24
1.58
1. 77
0. 87
2. 01
1.27
2.37
1. 71
1.76
1.82
0. 96
No, i
Obs.
1553
1562
591
2328
2143
1853
1516
1714
1519
1984
1955
1965
717
1016
974
1437
1559
1766
1359
1371
368
2744
1064
1129
1358
1257
2294
2302
1694
1233
1561
1527
1791
1762
1798
1217
1326
1409
1438
1035
1663
1133
1115
961
1174
1110
844
1140
1448
1438
3pm
Corr.
1267
1551
591
1969
1864
1629
1333
1709
1461
1708
1644
1928
720
1016
1011
1421
1613
1747
1094
1356
3696
2793
1001
1190
1363
1283
2269
2259
1700
1296
1443
1554
1865
1629
1662
1203
1326
1415
1411
1011
1517
1153
1102
1024
1274
1159
819
1199
1370
1415
Unit
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
#Hi-lo means two-speed rear axle.
-------
TABLE D-5. VEHICLE DESCRIPTION AND FIFTH ROUND EMISSION RESULTS
"18" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF MARCH 1, 1973)
E mi s_ai_i g n s Rj3B u 11 B
Unit Date
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Tested
7-25-72
7-25-72
7-26-72
7-26-72
7-27-72
8-2-72
7-31-72
8-1-72
8-1-72
7-31-72
1 1-12-72
8-17-72
11-12-72
11-12-72
8-3-72
8-30-72
8-30-72
8-29-72
8-29-72
10-12-72
10-4-72
S-2-72
8-4-72
8-9-72
8-11-72
8-18-72
8-7-72
8-16-72
8-9-72
8-21-72
8-8-72
8-8-72
Tr ansf e
T ransf e
T ran s f e
8-24-7.'
8-21-72
8-15-72
9-7-72
8-14
8-11-72
8-7-72
9-7-72
9-15-72
8-14-72
8-ZZ-72
9-30-72
10-7-72
10-9-72
10-9-72
Truck
No.
PO41001
PO40999
040997
PO41000
PO41002
353
349
351
350
352
24340
24341K
24343
24342
56
53
55
6
54
72341
72218
5131
5132
5136
5141
4952
6615
6616
4824
4726
4728
4729
r r e d to
r r ed to
r r e d to
4727
4730
4951
8810
8811
6855
6617
6856
4671
6857
4950
312
314
301
302
Vehicle
Source
P. O.D.
P. O.D.
P.O. D.
P. O.D.
P. O.D.
ABC
ABC
ABC
ABC
ABC
Ryder
Ryder
Ryder
Ryder
N.S. S.D.
N. S.S.D.
N.S. S. D.
N.S. S.D.
N.S. S.D.
Hertz
Hertz
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
another
another
another
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
CWB
CWB
CWB
CWB
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1970
1'971
1971
1971
1970
1970
1970
1970
1970
1970
city
city
city
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
Make
Dodge
Dodge
Dodge
Dodge
Dodge
White
White
White
White
White
me.
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
Ford
Ford
IHC
IHC
IHC
IHC
IHC
Ford
Ford
Ford
Chev
Chev
Chev
Chev
Chev
IHC
Ford
Ford
Ford
Ford
Ford
Ford
Ford
IHC
IHC
IHC
IHC
IHC
Engine
CID
318
318
318
318
318
400
400
400
400
400
478
478
478
478
345
345
345
345
345
300
240
392
392
392
392
304
300
300
300
292
250
250
250
250
304
300
300
300
300
300
300
300
304
304
304
304
304
Cyl.
V8
V8
V8
V8
V8
6
6
6
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
V8
V8
V8
V8
V8
6
6
6
6
6
6
6
6
V8
6
6
6
6
6
6
6
V8
V8
V8
V8
V8
Trans.
Speeds*
3 -auto
3 -auto
3 -auto
3 -auto
3 -auto
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5
5
5
5
5
3 -auto
3 -auto
3 - auto
3 - auto
3 -auto
3 -auto
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
GVW
Ibs.
10,000
10,000
10,000
10,000
10,000
30,000
30,000
30,000
30,000
30,000
32, 000
32,000
32,000
32,000
22, 500
25,500
25,500
22,000
22,000
10,000
7,500
25,500
25,500
25,500
25,500
14,000
10, 000
10,000
16,000
9,000
7, 500
7,500
7, 500
7,500
14,000
16, 000
16,000
16,000
10,000
16,000
10.000
16,000
19,700
19,700
19,700
10,000
10,000
Vehicle
Type
Van
Van
Van
Van
Van
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
School Bus
School Bus
School Bus
School Bus
School Bus
Stake
Pickup
Line
Line
Line
Line
Van
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Service
Wrecker
Service
Stake
Service
Bucket Truck
Service
Service
Crew Truck
Crew Truck
Test
Mileage
13, 961
13,257
15,745
16, 920
9,437
28, 552
27,867
27, 573
28, 311
28,755
38, 608
31, 998
37, 044
40, 279
40,658
40, 536
40,079
19,726
17,515
30,968
16,686
11, 100
14, 548
3, 958
19,334
11, 737
14,386
2, 205
26,673
34,406
15,055
13,496
16, 982
29,053
27, 812
24,476
25,184
5, 532
18,794
13, 083
22,758
38,930
28. 460
12,358
15,091
13,846
HC.p
244
294
221
250
249
216
228
117
298
180
231
165
234
227
143
439
271
310
290
250
304
296
198
296
129
301
195
181
145
210
214
230
371
261
261
283
165
208
188
137
187
212
269
2031
217
235
189
pm CO, %
1.36
1.79
1.65
2. 16
1.74
1.61
3. 80
2.00
2.74
3.00
1, 58
1.04
2.63
1.74
1.41
2,07
1.22
1.24
1. 51
1.19
2.45
4. 33
1.39
2.22
1.86
1.30
0. 67
0.49
0. 39
0. 92
1. 17
1.54
2. 09
1.08
1.36
3.09
0.22
0.53
0.55
0.47
0.45
0.51
1.85
0.72
1.42
1.60
2.20
NO,
Obs.
1605
1632
847
1386
603
2210
1101
1622
2393
1441
1575
1506
1736
1344
1317
2779
1829
2671
2455
2421
1827
904
1557
1486
724
2786
2433
2535
2009
2217
2322
1917
2085
2740
2613
1844
3637
978
2407
2973
2781
2415
2032
1985
2270
2438
1853
ppm
Corr.
1573
1599
822
1344
633
2186
1092
1573
2321
1431
1666
1467
1837
1422
1308
2827
1862
2700
2481
2465
1772
894
1528
1486
766
2755
2406
2545
2009
2201
2331
1925
2085
2721
2728
1837
3677
1035
2381
2962
2707
2442
1861
Ib49
2147
2431
1847
t'nit
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
»Hi-l° means two-speed rear axle.
-------
TABLE D-5 (Cont'd). VEHICLE DESCRIPTION AND FIFTH ROUND EMISSION RESULTS
"18" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF MARCH 1, 1973)
Emissions Results
Unit
No.
51
5Z
53
54
55
56
57
58
59
60
61
6Z
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Date
Tested
9-25-72
9-27-72
9-28-72
9-27-7Z
9-9-72
9-9-72
10-10-72
9-9-72
9-9-72
9-30-72
9-30-72
9-16-72
9-16-72
9-14-72
9-14-72
9-30-72
9-16-72
10-10-72
9-13-72
9-19-72
9-21-72
9-13-72
9-19-72
9-21-72
10-14-7Z
10-14-7Z
10-14-72
10-15-72
11-4-72
Over 50,
10-5-72
10-5-72
10-4-72
10-4-7Z
Truck
No.
93
105
106
122
311
313
315
316
317
253
254
391
392
582
581
251
252
360
5133
5140
5097
5106
5130
5153
M-78
M-80
M-98
SH-680
SH-699
000 miles.
134
135
239
240
Vehicle
Source
Pearl
Pearl
Pearl
Pearl
CWB
CWB
CWB
CWB
CWB
CWB
CWB
CWB
CWB
Red Arrow
Red Arrow
CWB
CWB
CWB
CPSB
CPSB
CPSB
CPSB
CPSB
CPSB
State Hosp.
State Hosp.
State Hosp.
State Hosp.
State Hosp.
Herder
Herder
Herder
Herder
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
Make
IHC
CMC
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
Chev
Chev
Chev
Chev
Dodge
Dodge
Dodge
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
IHC
Dodge
Dodge
Dodge
Ford
CMC
Ford
Ford
Ford
Ford
Engine
CID
304
292
318
300
304
304
304
304
304
307
307
366
366
318
318
318
318
361
392
392
345
345
392
392
225
225
225
302
401
300
300
361
361
Cyl.
V8
6
V8
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
6
V8
V6
6
6
V8
V8
Trans.
Speeds*
3
3
3
3
4
4
4
4
4
4
4
5
5
4
4
3-auto
3
5
6 - auto
6 -auto
5
5
6 -auto
6 -auto
4
4
4
3-auto
5
5
5
5
5
GVW
Ibs.
7,500
7,500
7, 500
7, 500
19,700
19, 700
19, 700
19, 700
19, 700
7, 500
7,500
32, 000
32,000
24, 000
24,000
7, 500
7,500
25,500
25, 900
25,500
25,000
25, 000
25, 500
25,500
7, 500
7, 500
7,500
6, 800
27, 000
21,000
21,000
22,000
22,000
Vehicle
Type
Delivery
Delivery
Delivery
Delivery
Service
Service
Service
Service
Service
Service
Service
Crane
Crane
Freight
Freight
Meter
Service
Dump
Line
Line
Digger
Digger
Line
Line
Pickup
Pickup
Pickup
Van
Bus
Freight
Freight
Freight
Freight
Test
Mileage
21,279
24, 222
21,975
34,208
8,974
14, 607
13,227
6,547
10,870
9, 157
17,062
4, 313
3, 329
15,384
11,915
20,277
17,555
31,006
19, 304
20,640
23,328
18,488
7,821
3,204
3,884
17, 822
35,495
23,212
21,777
29,403
NO, ppm
HC,ppm
313
316
293
192
249
211
216
193
254
3906
2136
180
139
485
368
235
246
256
119
281
282
216
346
301
297
238
247
252
252
305
314
335
566
CO, %
1.78
0.64
1. 57
0. 27
1.42
1.36
1.55
1.13
1. 14
1.92
1.86
1.00
1.79
1.53
1.94
1.61
1.58
2. 37
1. 34
2. 38
1.72
1. 00
3. 17
2.81
2.03
2.04
1. 86
0.99
5.03
4.80
0.48
1. 50
2.46
Obs.
2179
3337
2366
4047
2273
2333
1925
1761
2699
923
1282
1125
701
1986
2095
1237
2257
1623
1032
1212
2143
2146
1376
1408
2441
1667
2122
2501
1162
1030
3305
1953
2258
Corr.
2188
3249
2357
3940
2344
2414
1985
1780
2728
820
1103
1175
732
1985
2015
1088
2232
1623
1043
1250
2196
2169
1419
1438
2451
1674
2099
2473
1027
1003
3219
1838
2125
Unit
No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
Wrecked
10-15-7Z
10-14-7Z
10-14-72
10-15-72
11-4-72
10-25-72
10-Z1-7Z
10-11-7Z
10-Z2-72
10-22-72
10-26-7Z
10-26-72
10-27-72
10-27-72
10-27-72
L-41
M-77
M-87
M-90
M-95
2179
2120
27
2073
2121
4T1
4T16
1T22
2T9
2T12
State Hosp.
State Hosp.
State Hosp.
State Hosp.
State Hosp.
CP&R
CP&R
BMW
CP&R
CP&R
BCRD
BCRD
BCRD
BCRD
BCRD
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
Dodge
Dodge
Dodge
Dodge
Dodi»e
IHC
Ford
Ford
Chev.
Ford
Ford
Ford
Ford
Ford
Ford
225
225
225
225
225
345
360
360
296
360
240
240
330
330
330
6
6
6
6
6
V8
V8
V8
6
V8
6
6
V8
V8
V8
3-auto
3
3 -auto
3 -auto
3-auto
4
4
4
3-auto
4
3
3
5
4
4
10, 000
10,000
7, 500
10,000
10,000
19,000
8,300
7,500
14,000
8, 300
7, 500
7, 500
21,000
21,000
21,000
Laundry
Grounds
Service
Maint.
Grounds
Water Truck
Maint.
Repair
Maint.
Maint.
Maint.
Welder
Water Truck
Water Truck
Water Truck
5, 147
4,937
11, 193
7,549
4,862
2,061
9,685
24,538
5,118
4, 098
25,055
17,411
23,689
25, 149
21,854
191
229
204
217
193
142
231
280
288
270
347
312
268
299
306
2. 07
2.05
1.81
2. 15
1.76
0.95
2.02
2.99
0.88
2. 51
2.63
2.58
0.67
0. 91
1.24
1673
2129
1352
2120
2416
1819
1654
1545
3073
1502
1215
1358
2810
3129
2406
1602
2137
1337
2030
2136
1617
1750
1540
2840
1474
1117
1232
2810
3129
2406
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
*Hi-lo means two-speed rear axle.
-------
TABLE D-5 (Cont'd). VEHICLE DESCRIPTION AND FIFTH ROUND EMISSION RESULTS
"18" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF MARCH I, 1973)
Emissions
Unit
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
Date Truck
Tested No. Source
10-26-72 4T23 BCRD
10-17-72 7 BMW
Over 50. 000 miles
10-24-72 2085 CP8.R
10-25-72 2122 CP&R
10-17-72 2119 CP&R
10-22-72 2123 CP&R
10-18-72 2168 CP&R
10-18-72 2169 CP&R
10-19-72 2081 CP&R
10-19-72 2082 CP&R
11-9-72 2170 CP&R
10-30-72 51342 CPSB
10-31-72 51375 CPSB
10-30-72 51383 CPSB
10-27-72 4364 Elmore
1-31-73 16 Elmore
11-1-72 043247 P. O. D.
10-31-72 043144 P. O. D.
11-2-72 043327 P. O. D.
Not available this round
Not available this round
Not available this round
Not available this round
11-1-72 043221 P.O.D.
11-2-72 042519 P.O.D.
11-4-72 1085 Lone Star
11-4-72 1086 Lone Star
11-4-72 1088 Lone Star
Converted to LPG
1-30-73 1347 S.A.P.W.
1-31-73 1355 S.A.P.W.
Converted to LPG
11-7-72 1348 CPW
1-30-73 1345 S.A.P.W.
11-6-72 1349 S.A.P.W.
1-31-73 1365 S.A.P.W.
11-6-72 1346 S.A.P.W.
11-7-72 1346 S.A.P.W.
11-9-72 1363 S.A.P.W.
11-4-72 1087 Lone Star
11-30-72 496 ABC
11-14-72 497 ABC
11-21-72 503 ABC
11-13-72 3 JFC
11-20-72 1 JFC
11-20-72 5 JFC
11-13-72 2 JFC
11-13-72 7 JFC
11-13-72 4 JFC
11-9-72 276- 1ST Southern
11-20-72 6 JFC
Vehicle
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1971
1970
1970
1970
1970
1970
1970
1970
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
Make
Ford
Ford
Chev.
IHC
Ford
Chev.
Chev
Chev
Chev
Chev.
Chev.
IHC
IHC
IHC
CMC
CMC
Dodge
Dodge
Dodge
Dodge
Dodge
Ford
Ford
Ford
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
Ford
IHC
IHC
IHC
Chev.
Chev.
Chev.
Chev.
Chev.
Chev.
Chev.
Chev.
Engine
CID
330
360
307
392
360
307
307
307
307
307
307
392
392
392
350
350
318
318
318
318
318
391
391
391
392
392
392
392
392
392
392
392
392
391
478
478
478
350
350
350
350
350
350
427
350
Cyl.
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
Trans.
Speeds*
5
4
3
5
4
3
4
4
3
3
4
6 -auto
6 -auto
6-auto
4
4
3-auto
3-auto
3-auto
3-auto
3-auto
5
5
5
6-auto
6-auto
6-auto
6 -auto
6-auto
6-auto
6-auto
6-auto
6-auto
5
5
5
5
4
4
4
4
4
4
5
4
GVW
Ibs.
21, 000
6,000
7, 500
25, 500
8, 300
7, 500
10,000
10,000
7,500
7. 500
10,000
24, 000
25, 500
25, 500
14, 000
10, 000
10, 000
10, 000
10, 000
10, 000
10, 000
27, 500
27, 500
27, 500
34,000
34,000
34, 000
34, 000
34, 000
34, 000
34, 000
34,000
34,000
27,500
32, 000
32,000
32,000
24, 000
24,000
24, 000
24,000
24, 000
24, 000
32, 500
24, 000
Vehicle
Type
Water Truck
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Construction
Construction
Construction
Moving
Moving
Mail
Mail
Mail
Delivery
Delivery
Delivery
Delivery
Delivery
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Delivery
Rental
Rental
Rental
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Moving Co.
Delivery
Test
Mileage
41. 594
26,432
19,682
7,665
7, 228
7, 377
11,087
3, 807
10, 505
9, 715
24, 158
8, 935
21,324
22,949
8,277
8, 029
11,489
16,424
11, 773
13, 379
8,992
12, 133
21, 257
20, 260
20, 150
19, 10
17,622
19, 710
13, 972
17, 129
17,468
15, 406
17,401
19,476
58,868
44, 653
38,980
30, 076
33, 132
30,487
34,605
31,665
29,442
36,665
29,637
HC,p
531
476
174
279
171
270
179
224
277
179
223
280
176
265
223
192
218
322
267
294
251
229
604
330
198
185
206
696
250
314
246
245
222
336
206
263
273
301
305
227
547
265
206
193
209
pm CO, %
4.46
3. 28
2. 81
1. 99
1. 74
1. 98
2. 90
2.69
2.43
2. 30
3.00
3.38
2.38
1. 66
2.99
2. 14
1.92
2.42
2. 00
2.43
2. 13
0.96
0. 56
2. 58
2. 33
7. 07
2.06
4.93
2.91
1. 87
2.68
1.94
3. 32
3.95
1.17
2.63
1.92
1.42
2. 52
1. 74
2.94
2.45
1. 28
1.56
1.38
Results
NO,
Obs.
873
1198
2217
1812
1698
1629
1650
1592
2107
1715
2009
947
1165
1856
926
1680
1378
1235
1450
1224
1476
2557
2824
2343
1795
428
2135
2948
1963
2491
1928
1905
1659
1572
2038
1376
2040
2034
1419
1246
1288
468
2279
2308
1758
ppm
Cor r.
803
1194
1970
1643
1667
1505
1668
1609
1922
1563
1786
947
1209
1856
926
1361
1199
1282
1328
1065
1352
2273
2510
2082
1436
433
1877
2358
2018
2518
1982
1674
1475
1397
1773
1087
1785
1637
1164
1048
1051
374
1860
1895
1435
Unit
Nci.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
*Hi-Io means two-speed rear axle.
-------
TABLE D-6. VEHICLE DESCRIPTION AND SIXTH ROUND EMISSION RESULTS
"24" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF AUGUST 1, 1 973)
Emissions Results
Unit
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Date
Tested
2-1-73
2-5-73
2-2-73
2-2-73
2-1-73
2-12-73
2-13-73
2-12-73
2-13-73
3-8-73
6-25-73
3-26-73
3-27-73
3-27-73
2-6-73
2-14-73
2-6-73
2-7-73
2-7-73
3-12-73
3-29-73
2-15-73
2-23-73
2-15-73
3-6-73
2-19-73
2-16-73
2-16-73
2-20-73
3-2-73
3-1-73
2-27-73
2-27-73
3-1-73
2-19-73
2-23-73
2-22-73
2-22-73
2-21-73
2-21-73
3-6-73
2-26-73
3-5-73
3-19-73
6-20-73
3-13-73
6-20-73
Truck
No.
PO41001
PO40999
PO40997
PO41000
PO41002
353
349
351
350
352
24340
24341K
24343
24342
56
53
55
6
54
72341
72218
5131
5132
5136
5141
4952
6615
6616
4824
4726
4728
47290
671
672
673
4727
4730
4951
8810
8811
6855
6617
6856
4671
6857
4950
312
314
301
302
Vehicle
Source
P.O.D.
P.O.D.
P.O.D.
P.O.D.
P.O.D.
ABC
ABC
ABC
ABC
ABC
Ryder
Ryder
Ryder
Ryder
N.S.S.D.
N.S.S.D.
N.S.S.D.
N.S.S.D.
N.S.S.D.
Hertz
Hertz
C.P. S.B.
C. P. S.B.
C. P. S.B.
C.P. S.B.
C.P. S.B.
C.P. S.B.
C.P. S.B.
C.P. S.B.
C.P. S.B.
C. P. S.B.
C.P. S.B.
Brown Exp.
Brown Exp.
Brown Kxp.
C.P. S.B.
C, P. S.B.
C.P.S. D.
C. P.S. B
C P. S.B.
C.P. S.B.
C. P.S. B.
C.P. S.B.
C.P.S. B.
C.P. S.B
C.P. S.B.
C. W. B
C. W. B.
C. W. B.
C. W. B.
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1970
1971
1971
1971
1970
1970
1970
1970
1970
1970
1971
1971
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
Make
Dodge
Dodge
Dodge
Dodge
Dodge
White
White
White
White
White
me
IHC
IHC
IHC
IHC
me
IHC
IHC
IHC
Ford
Ford
IHC
IHC
IHC
EHC
IHC
Ford
Ford
Ford
Chev.
Chev.
Chev.
Ford
Ford
Ford
Chev.
Chev.
IHC
Ford
Ford
Ford
Ford
Ford
Ford
Ford
IHC
IHC
IHC
IHC
IHC
Engine
CID
318
318
318
318
318
400
400
400
400
400
478
478
478
478
345
345
345
345
345
300
240
392
392
392
392
304
300
300
300
292
250
250
300
300
300
250
250
304
300
300
300
300
300
300
300
304
304
304
304
304
Cyl_.
V8
V8
V8
V8
VB
6
6
6
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
V8
V8
V8
V8
V8
6
6
6
6
6
6
6
6
6
6
6
ve
6
6
6
6
6
6
6
V8
V8
V8
V8
V8
Trans.
Speeds*
3 -auto
3 -auto
3 - auto
3 - auto
3 -auto
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5
5
5
5
5
3 -auto
3 -auto
3 - auto
3 - auto
3 -auto
3 -auto
4
4
4
4
4
4
4
5
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
GVW
Ibs.
10, 000
10, 000
10, 000
10, 000
10, 000
30, 000
30, 000
30, 000
30, 000
30, 000
32, 000
32, 000
32, 000
32, 000
25,500
25,500
25, 500
22, 000
22,000
10, 000
7,500
25, 500
25, 500
25, 500
25, 500
14, 000
10, 000
10,000
16, 000
9, 000
7, 500
7, 500
24, 000
24, 000
24, 000
7,500
7,500
14, 000
16, 000
16, 000
16, 000
10, 000
16, 000
10,000
16, 000
19, 700
19, 700
19, 700
10,000
10, 000
Vehicle
Type
Van
Van
Van
Van
Van
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
School Bus
School Bus
School Bus
School Bus
School Bus
Stake
Pick-up
Line
Line
Line
Line
Van
Service
Service
Service
Service
Service
Service
Van
Tan
Van
Service
Service
Service
Service
Service
Service
Wrecker
Service
Stake
Service
Bud-Et Track
Service
Service
Crew Truck
Crew Truck
Test
Mileage
17,497
16, 873
19, 195
20,695
11,826
36, 409
35, 114
35, 874
34,999
37,971
56,313
44,863
45,967
48,629
50,481
52, 762
3,620
27,364
33,347
24, 342
37,915
22, 960
14,517
20, 935
4, 894
22, 711
15,949
18,359
2, 103
35, 124
45, 359
20,084
HC, pi
260
338
318
306
274
154
187
237
161
170
319
173
417
339
291
343
219
172
217
161
205
249
326
320
332
270
225
238
151
252
228
295
Transferred to
Transferred to
Transferred to
16,772
22,579
33,532
35,604
31,686
29,942
7,881
24,065
16,459
28,906
51, 372
35,643
16, 767
17, 760
19, 100
266
229
283
216
179
204
192
131
210
253
300
742
233
253
231
NO,
pm CO, % Obs.
1.61 2353
1.92 1679
1.94 1976
2.44 1753
1.82 1276
1.52 2023
3.95 1170
2.54 2323
2.62 1962
3.26 1762
1.78 1446
1,06 1143
2.77 1101
2.60 957
1.55 1606
2.15 2060
1.26 1805
1.51 2387
1.62 1659
1.13 2613
0.65 1909
2.61 1808
2.13 466
2.34 2147
2.38 1773
1.26 2889
0.67 3164
0.57 3055
0.35 3265
1.17 2885
1.53 2951
1.57 2409
another city
another city
another city
2.02 2118
1.08 2911
1.18 2546
0.60 2733
0.39 3667
0.66 3266
0.40 2956
0.40 3514
1.04 3001
3.65 2186
2.26 2394
1.73 1768
1.93 2204
1.82 1528
2. 18 2017
ppm
Corr.
1807
1595
1539
1366
980
1938
984
2225
1670
1811
1486
949
1042
905
1606
1648
1805
2413
1677
2762
1894
1464
392
1827
1473
2646
2547
2459
2645
2537
2623
2279
1853
2588
2332
2298
3311
2949
2669
3173
2494
2040
2461
1571
2213
1528
2073
Unit
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
* Hi-lo means two-speed rear axle.
-------
TABLE D-6 (Cont'd). VEHICLE DESCRIPTION AND SDCTH ROUND EMISSION RESULTS
"24" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF AUGUST 1, 1973)
Emissions Results
Unit
No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Date
Tested
3-2-73
2-28-73
3-14-73
3-15-73
3-19-73
3-15-73
3-15-73
3-12-73
3-13-73
3-15-73
3-14-73
3-8-73
3-8-73
3-12-73
3-12-73
3-14-73
3-6-73
3-5-73
3-6-73
3-6-73
2-20-73
2-26-73
3-13-73
3-31-73
3-31-73
3-31-73
6-26-73
3-7-73
3-7-73
3-7-73
3-31-73
6-26-73
4-7-73
6-26-73
3-31-73
3-23-73
3-21-73
3-9-73
3-20-73
3-21-73
3-28-73
3-28-73
3-29-73
3-29-73
3-29-73
Truck
No.
93
105
106
122
311
313
315
316
317
253
254
391
392
582
581
251
252
360
5133
5140
5097
5106
5130
5135
M-78
M-80
M-98
SH-680
SH-699
1029
134
135
239
240
250
L-41
M-77
M-87
M-90
M-95
2179
2120
27
2073
2121
4T1
4T16
1T22
2T9
2T12
Source
Pearl
Pearl
Pearl
Pearl
C. W. B.
C. W. B.
C. W. B.
C. W. B.
C. W. B.
C. W. B.
C. W. B.
C. W. B.
C. W. B.
Red Arrow
Red Arrow
C. W. B.
C. W. B.
C. W. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
State Ho s.
State HOB.
State Hos.
State Hos.
State Hos.
Lone Star
Herder
Herder
Herder
Herder
C. W. B.
State Hos.
State Hos.
State Hos.
State Hos.
State Hos.
City P&R
City PfcR
B. M. W.
City P&R
City P&R
B. C. R. D.
B. C. H, D.
B. C. R. D.
B. C. R, D.
B. C. R, D.
Vehicle
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1970
1970
1969
1970
1969
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
Make
IHC
CMC
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
Chev
Chev
Chev
Chev
Dodge
Dodge
Dodge
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
IHC
Dodge
Dodge
Dodge
Ford
CMC
Chev
Ford
Ford
Ford
Ford
Chev
Dodge
Dodge
Dodge
Dodge
Dodge
IHC
Ford
Ford
Chev
Ford
Ford
Ford
Ford
Ford
Ford
Engine
cro
304
292
318
300
304
304
304
304
304
307
307
366
366
318
318
318
318
361
392
392
345
345
392
392
225
225
225
302
401
307
300
300
361
361
307
225
225
225
225
225
345
360
360
292
360
240
240
330
330
330
Cyl.
V8
6
V8
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
6
V8
V6
V8
6
6
V8
V8
V8
6
6
6
6
6
V8
V8
V8
6
V8
6
6
V8
V8
V8
Trans.
Speeds*
3
3
3
3
4
4
4
4
4
4
4
5
5
4
4
3 -auto
3 -auto
5
6 -auto
6-auto
5
5
6-auto
6 -auto
4
4
4
3-auto
5
4
5
5
5
5
2-auto
3-auto
3-auto
3-auto
3-auto
3-auto
4
4
4
3-auto
4
3
3
5
4
4
GVW
Ibs.
7,500
7,500
7,500
7,500
19,700
19,700
19,700
19,700
19,700
7,500
7,500
3,200
3,200
24, 000
24, 000
7,500
7,500
25,500
25, 500
25,500
25,000
25,000
25,500
25,500
7,500
7,500
7, 500
6,800
27, 000
6,600
21,000
21,000
22,000
22,000
7,500
10,000
10,000
7,500
10,000
10,000
19,000
8,300
6, 100
14, 000
8,300
7,500
7,500
21,000
21,000
21,000
Vehicle
Type
Delivery
Pickup
Delivery
Pickup
Service
Service
Service
Service
Service
Service
Service
Crane
Crane
Freight
Freight
Meter
Service
Dump
Line
Line
Digger
Digger
Line
Line
Pickup
Pickup
Pickup
Van
Bus
Pickup
Freight
Freight
Freight
Freight
Service
Laundry
Grounds
Service
Maint.
Grounds
Water truck
Maint.
Repair
Maint.
Maint.
Maint.
Maint.
Water truck
Water truck
Water truck
Test
Mileage
27,268
Over 50,
25,655
Over 50,
15,370
6, 116
15,911
9, 532
14,800
12,166
19,731
5,636
4,635
52,981
29,287
19,634
15,108
12.015
23,258
40,370
24,177
25,777
30, 051
23,910
9,643
4, 196
4,806
12,765
21,490
Over 50,
Over 50,
28,291
28,973
34,916
Wrecked
6,462
6,605
13,925
10,316
5,830
2,732
11,819
30, 084
6,534
6,179
30,748
18,272
29,582
18,272
25,999
HC, CO,
ppm_ %
268 1.90
000 miles
284 1.51
000 miles
270 1.80
203 1.35
192 2.01
704 1.81
234 2. 00
2082 2. 74
2006 2. 83
202 1.25
184 2.19
2857 1.73
1487 1.86
265 2.05
327 2.16
242 2. 65
190 1.31
291 3.17
242 1 . 74
228 0.99
285 2. 96
2062 2. 26
247 2. 25
213 2.03
220 1.82
235 1.05
346 5. 60
000 miles
000 miles
143 0.35
291 1.69
364 2. 79
196 2.09
268 2. 30
237 2. 09
328 2.53
187 1.96
192 1.01
220 2. 04
335 3. 37
150 0.58
277 2.71
302 2. 37
318 2.42
213 0.88
272 1.04
311 1.61
NO, ppm
Obs.
2548
2687
1453
1548
2400
1604
2283
559
856
894
406
1989
1952
1902
1792
1504
2316
1467
2679
2752
1429
1388
2373
2048
2494
2216
1097
2360
2425
1919
1874
2233
2140
2332
2223
1891
1675
1341
3180
1886
1607
1364
2656
2968
1952
Corr.
2240
2426
1392
1294
2133
1543
2196
591
856
860
389
2045
2007
2010
1894
1440
1925
1493
2226
2287
1157
1295
1849
1628
1983
1761
1076
2152
2212
1750
1491
2331
2049
2435
1732
1931
1457
1425
2544
1641
1526
1295
2636
2946
1938
Unit
No.
si
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89'
90
91
92
93
94
95
96
97
98
99
100
*Hi-lo means two-speed rear axle.
-------
TABLE D-6 (Cont'd). VEHICLE DESCRIPTION AND SIXTH ROUND EMISSION RESULTS
"24" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF AUGUST 1, 1973)
Emission Results
Unit
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
1ZO
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
Date
Tested
3-28-73
3-9-73
3-22-73
3-26-73
3-21-73
3-23-73
3-22-73
3-26-73
3-20-73
3-20-73
3-22-73
4-3-73
4-3-73
4-3-73
6-28-73
4-4-73
6-21-73
4-4-73
7-16-73
7-17-73
7-18-73
4-4-73
4-5-73
4-7-73
6-20-73
4-7-73
5-3-73
5-4-73
5-4-73
7-5-73
5-3-73
5-2-73
5-2-73
7-5-73
5-2-73
4-7-73
6-19-73
7-2-73
5-7-73
6-18-73
5-7-73
6-25-73
5-7-73
6-19-73
5-7-73
Truck
No.
4T23
7
34
2085
2122
2119
2123
2168
2169
2081
2082
2170
51346
51375
51383
17
16
043247
043144
043327
98
101
102
105
PO043221
042519
1085
1086
1088
1353
1347
1355
1340
1348
1345
1349
1365
1346 <
1364
1363
1087
496
497
503
3
1
5
2
7
4
1ST
6
Source
B. C. R. D.
B.M. W.
Southern
City P&R
City P&R
City P&R
City P&R
City P&R
City P&R
City P&R
City P8tR
City P&R
C.P. S. B.
C. P. S. B.
C.P.S.B.
Elmore
Elmore
U.S. P.O.
U. S. P. O.
U. S. P. O.
FACS
FACS
FACS
FACS
P. O. D.
U. S. P. O.
Lone Star
Lone Star
Lone Star
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
Lone Star
ABC
ABC
ABC
JFC
JFC
JFC
JFC
JFC
JFC
Southern
JFC
Vehicle
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
Make
Ford
Ford
GMC
Chev.
IHC
Ford
Chev.
Chev.
Chev.
Chev.
Chev.
Chev.
IHC
IHC
IHC
GMC
GMC
Dodge
Dodge
Dodge
GMC
GMC
GMC
GMC
Dodge
Dodge
Ford
Ford
Ford
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
Ford
IHC
IHC
IHC
Chev.
Chev.
Chev.
Chev.
Chev.
Chev.
Chev.
Chev.
Engine
CID
330
360
427
307
392
360
307
307
307
307
307
307
392
392
392
350
350
318
318
318
292
292
29Z
292
318
318
391
391
391
392
392
392
392
392
392
392
392
392
392
392
391
478
478
478
350
350
350
350
350
350
427
350
Cyl.
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
Trans.
Speeds*
5
4
5
3
5
4
3
4
4
3
3
4
6 -auto
6-auto
6 - auto
4
4
3 -auto
3-auto
3 -auto
4
4
4
4
3-auto
3-auto
5
5
5
6-auto
6-auto
6-auto
6-auto
6-auto
6-auto
6-auto
6-auto
6-auto
6-auto
6-auto
5
5
5
5
4
4
4
4
4
4
5
4
GVW
Ibs.
21,000
6,100
32,500
7, 500
25, 500
8, 300
7,500
10, 000
10, 000
7,500
7,500
10, 000
24, 000
25,500
25,500
14,000
10,000
7,000
7,000
7,000
10,000
10,000
10,000
10,0(10
10,000
10, 000
27, 500
27, 500
27, 500
34,000
34, 000
34,000
34, 000
34, 000
34, 000
34, 000
34, 000
34,000
34, 000
34, 000
27, 500
32,000
32,000
32, 000
24,000
24,000
24, 000
24, 000
24,000
24, 000
32,500
24, 000
Vehicle
Type
Water truck
Maint.
Tractor
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Maint,
Maint.
Maint.
Const.
Const.
Const.
Moving
Moving
Mail
Mail
Mail
Delivery
Delivery
Delivery
.Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Delivery
Tractor
Tractor
Tractor
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Moving
Delivery
Test
Mileage HC, ppm
34,812 547
33,362 283
Over 50,000 miles
24,317 208
9,454 266
8, 809 164
8,885 200
13,801 203
7,128 224
13,431 224
1-2,230 170
28,860 315
10,804 291
26,186 182
29, 036 244
No sixth round test
10,600 174
14,461 225
22,075 258
15,521 308
41,371 265
36,071 239
No sixth round test
29,341 104
16,179 307
11,397 236
15,626 240
29,993 845
18,209 313
Converted to LPG
22, 875 258
21,571 450
Converted to LPG
23,906 237
24,205 519
19,613 232
19,910 367
23,524 254
23,178 233
17,401 350
24,688 393
Over 50, 000 miles
53, 560 324
47,282 319
38,190 360
42,632 318
40,756 246
50,560 344
39, 855 892
37,814 375
No sixth round test
39,976 322
CO, %
4.57
3.37
2.60
2.36
2. 74
2.03
3.25
2.40
2.42
2.25
3.04
2.79
1. 88
2.09
1. 18
1.61
2.17
2.09
4.63
1.57
0.796
2. 24
1. 87
1.50
1.48
2.81
3.85
8.04
4.96
8.23
1.74
2.45
4.54
1.93
3. 71
4.53
2.65
1.84
1. 52
3.63
1.97
1.49
2. 52
1.86
1.94
NO,
Obs.
1032
1053
2195
1712
1610
1108
1561
1615
1789
1973
1813
1380
1513
1480
1634
1518
1467
1223
1045
2692
1137
1309
1457
2639
2549
1833
1291
317
815
367
2333
2190
1223
1804
1342
1379
1143
2373
2575
823
1160
1323
1047
1364
2646
ppm
Corr.
980
1119
2153
1431
1400
1132
1531
1342
1431
1578
1779
1082
1186
1162
1641
1141
1473
979
1111
2777
1137
984
1166
2527
2645
1755
1110
285
806
399
2006
2124
1186
1959
1302
1274
1148
2382
2585
838
1082
1351
921
1369
2657
Unit
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
*Hi-lo means two-speed rear axle
-------
TABLE D-7. VEHICLE DESCRIPTION AND SEVENTH ROUND EMISSION RESULTS
"30" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF FEBRUARY i , 1974)
Emission Results
Unit
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Date
Tested
9-12-73
9-12-73
9-11-73
9-13-73
9-13-73
9-24-73
9-25-73
9-11-73
9-17-73
9-24-73
11-6-73
11-6-73
11-2-73
9-14-73
9-14-73
9-21-73
10-10-73
9-21-73
10-8-73
10-1-73
9-27-73
9-27-73
9-20-73
10-2-73
9-20-73
9-17-73
9-17-73
9-18-73
9-25-73
9-19-73
10-9-73
9-28-73
10-11-73
10-11-73
9-19-73
10-17-73
10-18-73
10-15-73
10-15-73
Truck
No.
PO41001
PO40999
PO40997
PO41000
PO4 1002
353
349
351
350
352
24340
2434 IK
24343
24342
56
53
55
6
54
72341
72218
5131
5132
5136
5141
4952
6615
6616
4824
4726
4728
4729
6-71
672
673
4727
4730
4951
8810
8811
6855
6617
6856
4671
6857
4950
312
314
301
302
Source
P. O. D.
P. O. D.
P. O. D.
P. O. D.
P. 0. D.
ABC
ABC
ABC
ABC
ABC
Ryder
Ryder
Ryder
Ryder
N. S. S. D
N. S.S.D.
N.S. S. D
N. S. S. D.
N. S. S. D.
Hertz
Hertz
C. P. S. B.
C. P. S. B.
C. P.S. B.
C. P. S. B.
C. P. S. B.
C.P.S. B.
C. P. S. B.
C.P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
Brown Exp.
Brown Exp.
Brown Exp.
C. P. S. B.
C.P.S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C.P.S. B.
C. P. S. B.
C. P.S. B.
C. P. S. B.
C.P.S.B.
C.W. B.
C. W. B.
C.W. B.
C. W. B.
Vehicle
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1970
1971
1971
1971
1970
1970
1970
1970
1970
1970
1971
1971
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
Make
Dodge
Dodge
Dodge
Dodge
Dodge
White
White
White
White
White
1HC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
Ford
Ford
IHC
IHC
IHC
IHC
IHC
Ford
Ford
Ford
Chev
Chev
Chev
Ford
Ford
Ford
Chev
Chev
IHC
Ford
Ford
Ford
Ford
Ford
Ford
Ford
IHC
IHC
IHC
IHC
IHC
Engine
cm
318
318
318
318
318
400
400
400
400
400
478
478
478
478
345
345
345
345
345
300
240
392
392
392
392
304
300
300
300
292
250
250
300
300
300
250
250
304
300
300
300
300
300
300
300
304
304
304
304
304
Cyl.
V8
V8
V8
V8
V8
6
6
6
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
V8
V8
V8
V8
V8
6
6
6
6
6
6
6
6
6
6
6
V8
6
6
6
6
6
6
6
V8
V8
V8
V8
V8
Trans.
Speeds*
3 -auto
3 -auto
3-auto
3-auto
3-auto
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5 Hi-Lo
5
5
5
5
5
3 auto
3 auto
3-auto
3-auto
3-auto
3-auto
4
4
4
4
4
4
4
5
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
GVW
Ibs.
10,000
10, 000
10,000
10,000
10,000
30,000
30,000
30,000
30,000
30,000
32,000
32,000
32,000
32, 000
25,500
25, 500
25, 500
22,000
22,000
10,000
7,500
25,500
25, 500
25,500
25,500
14,000
10,000
10,000
16,000
9,000
7,500
7,500
24, 000
24, 000
24, 000
7,500
7,500
14, 000
16,000
16,000
16,000
10, 000
16,000
10,000
16,000
19,700
19,700
19,700
10, 000
10,000
Vehicle
Type
Van
Van
Van
Van
Van
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
Tractor
School Bus
School Bus
School Bus
School Bus
School Bus
Stake
Pickup
Line
Line
Line
Line
Van
Service
Service
Service
Service
Service
Service
Van
Van
Van
Service
Service
Service
Service
Service
Service
Wrecker
Service
Stake
Service
Bucket Tr.
Service
Service
Crew Truck
Crew Truck
Test HC, CO, NO, ppm
Mileage oj>m % Obs.
21,930 443 2.18 1122
20,771 338 1.95 1732
24,079 313 1.87 941
26,915 323 2.8) 1137
14,413 377 1.99 752
47,459 253 1.77 1928
44,057 295 4.23 1067
45,548 303 3.11 1920
44,916 352 4.42 1343
47,464 228 3.85 1134
Over 50, 000 mi.
51, 197 220 1.32 1340
55,472 1901 1.83 1513
56, 181 670 2.74 998
Over 50,000 mi.
Over 50, 000 mi.
Over 50, 000 mi.
34,340 2016 1.53 1994
43,309 313 1.67 2028
Transferred to another city
Transferred to another city
28,756 365 3.38 1403
18,415 271 6.46 294
29,758 - 267 2.60 651
5,945 175 2.09 1041
26,522 361 1.61 2500
20,742 306 1.13 2669
23,420 262 0.54 2722
26,435 235 0.41 3228
44, 770 251 2.28 2234
59,194 308 2.08 2084
24,972 277 1.45 2294
Transferred to another city
Transferred to another city
Transferred to another city
19,952 290 2.08 1876
Wrecked
37,925 367 1.63 2056
45,73] 286 0.70 3391
40,878 261 0.84 2928
36,003 222 0.55 2674
11.688 235 0.53 3017
31,283 217 0.52 3576
21,724 210 0.87 2230
35,640 212 0.62 3)68
Over 50, 000 miles
45,541 248 1.54 2)30
17,967 267 1.66 2155
22,486 240 2.43 1719
21,919 501 4.96 1060
Corr.
1126
1732
951
1141
755
1936
1067
1955
1317
1134
1364
1540
1009
2002
2035
1403
300
654
1045
2528
2669
2722
3328
2218
2)49
2372
1940
2099
3391
3139
2722
3029
3769
2275
3396
2002
1918
1822
1'24
Unit
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
*Hi-lo means two-speed rear axle.
-------
TABLE D-7 (Cont'd). VEHICLE DESCRIPTION AND SEVENTH ROUND EMISSION RESULTS
"30" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF FEBRUARY 1, 1974)
Emissions Results
Unit
No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Date
Tested
10-22-73
10-22-73
10-15-73
10-17-73
11-9-73
10-16-73
10-16-73
10-18-73
10-18-73
10-17-73
10-16-73
11-1-73
10-12-73
11-9-73
10-5-73
10-9-73
10-10-73
10-4-73
10-3-73
10-5-73
11-19-73
11-16-73
11-16-73
11-15-73
11-15-73
10-19-73
10-19-73
10-19-73
11-20-73
11-20-73
11-19-73
11-21-73
11-21-73
10-27-73
10-23-73
11-2-73
10-24-73
10-29-73
10-29-73
10-30-73
10-30-73
10-30-73
Truck
No.
93
105
106
122
311
313
315
316
317
253
254
391
392
582
581
251
252
360
5133
5140
5097
5106
5130
5135
M-78
M-80
M-98
SH-680
SH-699
1029
134
T35
239
240
250
1-41
M-77
M-87
M-90
M-95
2179
2120
27
2073
2121
4T1
4T16
1T22
2T9
2T12
Source
Pearl
Pearl
Pearl
Pearl
C. W. B.
C. W. B.
C. W. B.
C. W. B.
C. W. B.
C. W. B.
C. W. B.
C. W. B.
C. W. B.
Red Arrow
Red Arrow
C. W. B.
C W. B.
C. W. B.
C. P. S. B.
C. P. S. B.
C.P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
State Hosp.
State Hosp.
State Hosp.
State Hosp.
State Hosp.
Lone Star
Herder
Herder
Herder
Herder
C. W. B.
State Hosp.
State Hosp.
State Hosp.
State Hosp.
State Hosp.
City P&R
City P&R
B.M. W.
City P&R
City P&R
B. C.R.D.
B. C.R.D.
B. C.R.D.
B. C.R.D.
B. C.R.D.
Vehicle
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
Make
IHC
CMC
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
Chev
Chev
Chev
Chev
Dodge
Dodge
Dodge
Dodge
Ford
IHC
IHC
IHC
IHC
IHC
IHC
Dodge
Dodge
Dodge
Ford
CMC
Chev
Ford
Ford
Ford
Ford
Chev.
Dodge
Dodge
Dodge
Dodge
Dodge
IHC
Ford
Ford
Chev
Ford
Ford
Ford
Ford
Ford
Ford
Engine
CID
304
292
318
300
304
304
304
304
304
307
307
366
366
318
318
318
318
361
392
392
345
345
392
392
225
225
225
302
401
307
300
300
361
361
307
225
225
225
225
225
345
360
360
292
360
240
240
330
330
330
Cyl.
V8
6
V8
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
6
V8
V6
V8
6
6
V8
V8
V8
6
6
6
6
6
V8
V8
V8
6
V8
6
6
V8
VB
V8
Trans.
Speeds*
3
3
3
3
4
4
4
4
4
4
4
5
5
4
4
3-auto
3-auto
5
6-auto
6-auto
5
5
6-auto
6-auto
4
4
4
3-auto
5
4
5
5
5
5
2-auto
3-auto
3-auto
3-auto
3-auto
3-auto
4
4
4
3
4
3
3
5
4
4
GVW
Ibs.
7, 500
7,500
7, 500
7, 500
19, 700
19,700
19, 700
19, 700
19, 700
7, 500
7, 500
32, 000
32, 000
24,000
24, 000
7, 500
7,500
25, 500
25,500
25,500
25, 000
25, 000
25,500
25,500
7, 500
7, 500
7, 500
6, 800
27, 000
6, 600
21, 000
21, 000
22, 000
22, 000
7, 500
10, 000
10, 000
7, 500
10, 000
10, 000
19, 000
8, 300
7, 500
14, 000
8, 300
7, 500
7, 500
21, 000
21, 000
21, 000
Vehicle
Type
Delivery
Pickup
Delivery
Pickup
Service
Service
Service
Service
Service
Service
Service
Crane
Crane
Freight
Freight
Meter
Service
Dump
Line
Line
Digger
Digger
Line
Line
Pickup
Pickup
Pickup
Van
Bus
Pickup
Freight
Freight
Freight
Freight
Service
Laundry
Grounds
Service
Maint.
Grounds
Water truck
Maint.
Repair
Maint.
Maint.
Maint.
Welder
Water truck
Water truck
Water truck
Test
Mileage
38, 100
Over 50,
32, 375
Over 50,
20, 610
28,461
19, 684
11, 858
18,270
15, 104
24, 762
7,455
6, 120
Over 50,
36,594
23, 042
16,659
32, 272
32, 383
55,485
30,359
33, 216
40, 085
33, 160
13,081
5, 535
6,223
15,481
26,213
Over 50,
Over 50,
36, 174
39, 232
43,980
Wrecked
8,454
8, 142
17,952
11,886
7, 543
3, 155
15, 008
40, 282
8, 934
9, 126
39, 024
26,802
40, 106
35,002
30, 808
HC, CO,
ppm %
249 1.79
000 miles
292 1.63
000 miles
296 1.66
267 2.42
244 1.75
249 1.45
254 1.32
213 3.09
236 3.22
143 1. 18
280 5.56
000 miles
2106 2. 19
302 2.23
210 2.03
312 2.84
203 1.21
214 2.62
351 1.90
261 1.33
352 3.48
138 1.95
289 2.53
203 1.91
251 1.72
256 1. 13
292 5.75
000 miles
000 miles
155 0.70
220 2. 10
263 2.92
268 2.46
287 2. 30
274 2. 20
284 2. 38
199 J.95
164 1.08
249 2. 15
309 3.56
202 0.62
301 2.56
280 1.96
328 1.38
260 0.71
342 1.J4
309 1.24
NO, ppm
Obs.
1906
2536
1920
1683
2271
2217
2652
1659
1543
995
636
1634
1609
1053
1938
1878
703
1879
2291
990
937
2)39
1970
2568
2777
! !36
288]
1509
1490
2535
2416
2139
)843
2657
2204
1851
!3J3
3183
1909
J971
1974
2583
2885
2371
Corr.
1778
2366
2035
1582
2228
2150
2572
1609
1497
1065
6)7
1616
1644
1000
1901
1931
715
1918
2392
983
963
2220
1941
2270
2430
994
2795
1470
1445
2)32
2032
2220
1780
2567
2)89
1773
1327
3196
1829
1888
189)
2738
3058
2513
Unit
No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
*Hi-lo means two-speed rear axle.
-------
TABLE D-7 (Cont'd). VEHICLE DESCRIPTION AND SEVENTH ROUND EMISSION RESULTS
"30" MONTHS HEAVY-DUTY GASOLINE SURVEILLANCE (AS OF FEBRUARY I. 1974)
Emission Results
Unit
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
J47
148
149
ISO
151
152
Date
Tested
10-23-73
11-2-73
10-23-73
10-25-73
10-27-73
10-24-73
10-24-73
10-25-73
10-27-73
10-27-73
10-25-73
11-5-73
11-5-73
11-5-73
11-9-73
11-8-73
11-6-73
11-6-73
11-7-73
11-13-73
11-13-73
11-14-73
11-14-73
11-6-73
11-17-73
11-17-73
11-17-73
11-27-73
11-17-73
Truck
No.
4T23
7
34
2085
2122
2119
2123
2168
2169
2081
2082
2170
51346
51375
51383
4364
16
043247
043144
043327
98
101
102
105
043221
042519
1085
1086
1088
1353
1347
1355
1340
1348
1345
1349
1365
1346
1364
1363
1087
496
497
503
3
1
5
2
7
4
276 -1ST
6
Source
B. C. R. D.
B. M. W.
Southern
City PtR
City PfcR
City PtR
City PtR
City PtR
City P&R
City PltR
City PfcR
City PfcR
C. P. S. B.
C. P. S. B.
C. P. S. B.
Elm ore
Elmore
P. O. D.
P. O. D.
P. O. D.
Facs
Facs
Facs
Faca
P. O. D.
P. O. D.
Lone Star
Lone Star
Lone Star
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S.A.P. W.
S.A.P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
S. A. P. W.
Lone Star
ABC
ABC
ABC
JFC
JFC
JFC
JFC
JFC
JFC
So. Moving
JFC
Vehicle
Year
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
1971
Make
Ford
Ford
CMC
Chev
me
Ford
Chev
Chev
Chev
Chev
Chev
Chev
IHC
IHC
IHC
CMC
CMC
Dodge
Dodge
Dodge
CMC
CMC
CMC
CMC
Dodge
Dodge
Ford
Ford
Ford
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
IHC
Ford
IHC
IHC
IHC
Chev
Chev
Chev
Chev
Chev
Chev
Chev
Chev
Engine
CID
330
360
427
307
392
360
307
307
307
307
307
307
392
392
392
350
350
318
318
318
292
292
292
292
318
318
391
391
391
392
392
392
392
392
392
392
392
392
392
392
391
478
478
478
350
350
350
350
350
350
427
350
Cyl.
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
6
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
Trans.
Speeds*
5
4
5
3
5
4
3
4
4
3
3
4
6-auto
6-auto
6-auto
4
4
3 -auto
3 -auto
3 -auto
4
4
4
4
3 -auto
3 -auto
5
5
5
6-auto
6 -auto
6-auto
6-auto
6 -auto
6-auto
6 -auto
6-auto
6 -auto
6-auto
6 -auto
5
5
5
5
4
4
4
4
4
4
4
4
GVW
Ibs.
21,000
6,000
32, 500
7,500
25,500
8,300
7,500
10,000
10,000
7,500
7,500
10,000
24, 000
25, 500
25, 500
14,000
14,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
27,500
27,500
27,500
34,000
34, 000
34,000
34, 000
34, 000
34, 000
34, 000
34,000
34,000
34, 000
34, 000
27, 500
32,000
32,000
32,000
24, 000
24, 000
24,000
24, 000
24,000
24,000
32, 500
24, 000
Vehicle
Type
Water Truck
Maint.
Tractor
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Maint.
Const.
Const.
Const.
Moving
Moving
Mail
Mail
Mail
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Garbage
Delivery
Tractor
Delivery
Delivery
Delivery
Delivery
Delivery
Delivery
Tractor
Deliyc ry
Test HC, CO,
Mileage ppm %
42,023 602 4.87
44,646 310 3.82
Over 50, 000 miles
31,335 268 2.76
12,707 242 4.75
12,504 282 2.82
11,980 205 2.23
18,422 2151 2.21
17,463 288 2.97
18,014 290 2.80
16,204 247 2.78
36,764 1974 2.61
13,894
35,451 159 1.65
38,578 259 2.69
15,767 1851 1.72
13,232 250 1.14
18,096 235 2.02
25,813 295 2.22
20,763 255 2.12
47,708 266 4.62
41,422 225 1.94
52,677 172 1.77
20,125 323 2.55
20,125 323 2.55
14,993 228 2.23
20,500 297 3.83
35,447 266 1.49
33,802 324 2.65
Converted to LPG
27, 876 281 4. 04
27,642 510 8.36
Converted to LPG
29,435 183 4.97
Converted to LPG
26,009 302 6.69
25,316 308 3.82
29,185 269 2.58
28,110 323 7.68
29,048 277 4.96
31,293 293 3.44
Over 50, 000 miles
Over 50, 000 miles
Over 50, 000 miles
48,908 166 0.75
54, 446 290 6. 08
50,514 162 1.57
Over 50, 000 miles
55,175 240 1.97
43,163 186 1.14
71,913 393 4.40
48,463 153 1.03
NO.
Obs.
1289
1455
2243
673
1724
1908 *
1677
1965
1949
1879
1720
1329
1496
1997
2557
1369
1438
1032
1328
2733
1422
1114
1114
928
1562
2792
2267
1637
459
622
552
1639
1998
384
906
1629
1980
625
1285
981
1798
659
2036
ppm Unit
Corr. No.
1235 101
1471 102
103
2149 104
687 105
1712 106
1902 107
1672 108
2006 1 09
1935 110
1866 111
1756 112
113
1257 114
1415 115
1945 116
2567 117
1393 118
1464 119
1067 120
1333 121
2744 122
1406 123
1 1 34 1 24
1134 125
960 1 26
1651 127
2951 128
2396 129
130
1310 131
367 132
133
523 134
135
442 136
1328 137
1660 138
319 139
725 140
1722 141
142
143
144
1584 145
500 146
1094 147
148
867 149
1530 150
647 151
1629 152
*Hi-lo mean* two-speed rear axle.
-------
TABLE D-8. ROUND 1 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - HYDROCARBONS
Number Standard
Manufacturer CID Cyl. In Group Mean Min Max Deviation
Chevrolet&GMC
White
Ford
Ford
Chevrolet
CMC
Dodge
Chevrolet
GMC
CMC
Ford
Chevrolet
IHC
Dodge
Chevrolet
Ford
Chevrolet
Ford
IHC
IHC
Ford
IHC
Ford
427
400
302
300
366
350
225
292
292
401
360
350
392
318
307
240
250
391
345
478
361
304
330
V8
6
V8
6
V8
V8
6
6
6
V6
vs
V8
V8
V8
V8
6
6
V8
V8
V8
V8
V8
V8
2
5
1
17
2
2
8
2
5
1
5
7
23
15
1.1
3
4
4
8
7
3
13
4
D-23
151
154
164
177
177
189
206
209
217
229
232
241
246
247
257
iol
263
264
273
275
279
297
315
63
96
-
132
170
154
181
173
170
-
209
84
148
173
158
261
249
189
230
229
232
252
253
238
189
-
223
184
223
255
244
254
260
362
310
328
615
262
273
317
345
307
322
352
407
124
38
-
26
10
49
25
50
41
-
18
94
43
43
129
1
10
54
37
29
45
37
68
-------
TABLE D-9. ROUND 1 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CARBON MONOXIDE
Number Standard
Manufacturer
Ford
Ford
Chevrolet
Ford
Ford
Chevrolet
Chevrolet
IHC
IHC
CMC
Chevrolet
Chevrolet&GMC
Ford
IHC
Dodge
Ford
Dodge
CMC
CMC
Ford
Chevrolet
IHC
White
cn>
300
240
292
391
302
366
350
345
304
292
250
427
361
478
225
360
318
401
350
330
307
392
400
Cyl.
6
6
6
V8
V8
V8
V8
V8
V8
6
6
V8
V8
V8
6
V8
V8
V6
V8
V8
V8
V8
6
In Group
17
3
2
4
1
2
7
8
13
5
4
2
3
7
8
5
15
1
2
4
11
23
5
D-24
Mean
0.57
1.00
1.02
1.07
1.07
1. 15
1.16
1.18
1.30
1.37
1.40
1.42
1.45
1.57
1.78
1.79
1.96
2.04
2.05
2.10
2.33
2. 28
2.49
Min
0.26
0.45
0.89
0.54
-
1.14
0.88
0.89
0. 78
0.86
1.19
1.32
1. 18
1.15
1.57
1.20
1.44
-
0.47
0.71
1.61
1. 10
1.46
Max
0.83
1.62
1.15
1.70
-
1. 16
1.71
1. 57
2.24
2. 27
1.69
1.52
1.76
1.88
2. 13
2.06
2.69
-
3.62
5.51
3.79
4.24
4. 4<»
Deviation
0.18
0.59
0.18
0.56
-
0.01
0.28
0.21
0.37
0. 55
0.22
0.14
0.29
0.29
0.20
0.34
0.38
-
2.23
2.2s
0.67
0.60
1.18
-------
TABLE D-10.ROUND 1 AVERAGE EMISSION INSPECTION RESULTS
BY*ENGINE MODEL - OBSERVED NITRIC OXIDE
Number Standard
Manufacturer
Chevrolet
Chevrolet&GMC
IHC
Chevrolet
Dodge
GMC
IHC
White
GMC
Ford
Ford
Ford
Chevrolet
GMC
Ford
IHC
IHC
Dodge
Ford
Chevrolet
Ford
Chevrolet
Ford
CID
366
427
392
350
318
350
478
400
401
360
302
361
307
292
240
345
304
225
391
292
300
250
330
Cyl.
V8
V8
V8
V8
V8
V8
V8
6
V6
V8
V8
V8
V8
6
6
V8
V8
6
V8
6
6
6
V8
In Group
2
2
23
7
15
2
7
5
1
5
1
3
11
5
3
8
13
8
4
2
17
4
4
D-25
Mean
882
909
1059
1187
1457
1575
1662
1742
1760
1783
1795
1943
1962
2059
2036
2118
2146
2162
2201
2203
2272
2333
2430
Min
481
593
423
979
656
1311
1419
1213
-
1419
-
1658
1102
1140
1853
1585
1784
1651
1410
2184
1112
2189
806
Max
1282
1224
2346
1384
2519
1839
2148
2221
-
2052
-
2212
2655
3241
2356
2477
2916
2452
3068
2222
3984
2462
3025
Deviation
566
466
396
156
563
373
254
369
254
-
277
4gi
917
278
295
313
234
696
27
690
111
1084
-------
TABLE D-ll. ROUND 1 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CORRECTED NITRIC OXIDE
Manufacturer CID
Number
Cyl. In Group Mean
Standard
Min Max Deviation
Chevrolet
Chevrolet&GM3
IHC
Chevrolet
Dodge
GMC
GMC
White
Ford
IHC
Chevrolet
Ford
Ford
GMC
Ford
IHC
Dodge
Fard
Ford
IHC
Chevrolet
Chevrolet
Ford
366
427
392
350
318
350
401
400
360
478
307
361
302
292
391
304
225
240
300
345
292
250
330
- ~
V8
V8
V8
V8
V8
V8
V6
6
V8
V8
V8
V8
V8
6
V8
V8
6
6
6
V8
6
6
V8
2
2
23
7
15
2
1
5
5
7
11
3
1
5
4
13
8
3
17
8
2
4
4
D-26
712
945
1040
1238
1306
1568
1656
1683
1698
1713
1767
1785
1803
1856
1925
1932
2076
2050
2186
2168
2238
2358
2376
390
600
378
1022
552
1302
-
1316
1497
1474
1150
1540
-
998
1340
1612
1512
1840
1065
Ib71
2193
2228
801
1033
1290
2276
1432
2308
1834
-
2387
1981
2187
2384
2093
-
2803
2424
2363
2599
2445
3957
2572
2284
2455
3188
454
488
385
159
527
376
-
450
181
237
361
282
-
770
461
226
318
343
708
306
64
101
1098
-------
TABLE D-12. ROUND 2 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - HYDROCARBONS
Number Standard
Manufacturer CID Cyl. In Group Mean Min Max Deviation
Chevrolet
CMC
Ford
White
Chevrolet
Ford
Chevrolet&GMC
Ford
Chevrolet
IHC
CMC
Dodge
IHC
IHC
Chevrolet
IHC
Chevrolet
Dodge
Ford
Ford
CMC
Ford
Ford
366
350
300
400
292
302
427
391
307
345
292
225
478
304
350
392
250
318
360
240
401
361
330
V8
V8
6
6
6
V8
V8
V8
V8
V8
6
6
V8
V8
V8
V8
6
V8
V8
6
V6
V8
V8
2
2
17
5
2
1
2
4
11
8
5
8
7
13
7
23
4
15
5
3
1
3
4
163
203
204
213
233
236
239
255
255
260
262
262
264
267
274
280
281
282
290
311
329
334
349
139
197
150
174
208
-
236
202
192
190
198
230
182
206
196
187
260
207
274
261
293
300
186
208
262
249
257
-
242
314
369
282
317
319
399
325
420
375
294
341
304
344
-
377
388
33
8
31
27
35
-
4
48
48
30
47
29
67
36
85
45
15
42
12
44
42
37
D-27
-------
TABLE D-13. ROUND 2 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CARBON MONOXIDE
Number Standard
Manufacturer CID Cyl. In Group Mean Min Max Deviation
Ford
Chevrolet
Ford
Chevrolet
CMC
Ford
Ford
IHC
Chevrolet
CMC
IHC
IHC
Ford
Ford
Dodge
Dodge
Chevrolet
Ford
White
Chevrolet&GMC
Chevrolet
IHC
CMC
300
292
330
366
350
302
240
345
250
292
304
478
391
361
225
318
350
360
400
427
307
392
401
6
6
V8
V8
V8
V8
6
V8
6
6
V8
V8
V8
V8
6
V8
V8
V8
6
V8
V8
V8
V6
17
2
4
2
2
1
3
8
4
5
13
7
4
3
8
15
7
5
5
2
11
23
1
D-28
0.
0.
0.
0.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
2.
2.
2.
2.
2.
4.
54
86
87
94
03
03
07
11
16
34
45
54
59
82
84
86
89
20
35
39
55
63
75
0
0
0
0
0
0
0
0
0
1
0
0
1
1
1
1
1
0
2
1
1
.31
.84
. 52
.76
.65
-
.54
.81
.94
.56
. 07
.87
.77
.41
.53
.40
.09
.73
.94
. 18
.91
. 71
-
1
0
1
1
1
1
1
1
1
2
1
2
2
2
2
2
2
3
2
3
6
.04
.88
.22
. 11
.40
-
. 54
.61
.45
.99
.60
. 82
.74
. 12
.40
.42
.55
. 55
.81
.59
.39
.56
-
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
1.
0.
0.
1.
19
03
29
25
53
50
23
24
55
38
31
87
37
27
28
48
30
03
29
45
00
-------
TABLE D-14. ROUND 2 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - OBSERVED NITRIC OXIDE
Number Standard
Manufacturer CID Cyl. In Group Mean Min Max Deviation
Chevrolet
CMC
Chevrolet&GMC
Chevrolet
IHC
Dodge
IHC
Ford
White
Chevrolet
CMC
Ford
Ford
Ford
IHC
CMC
Ford
Ford
Dodge
IHC
Chevrolet
Chevrolet
Ford
366
401
427
350
392
318
478
360
400
307
350
361
240
302
304
292
300
391
225
345
292
250
330
V8
V6
V8
V8
V8
V8
V8
V8
6
V8
V8
V8
6
V8
V8
6
6
V8
6
V8
6
6
V8
2
1
2
7
23
15
7
5
5
11
2
3
3
1
13
5
17
4
8
8
2
4
4
D-29
784
855
1158
1312
1403
1591
1630
1750
1838
1838
1854
1867
1936
2001
2121
2200
2262
2287
2308
2321
2539
2663
2953
483
-
927
996
434
948
1312
1451
1512
1199
1807
1651
1703
-
1257
1221
1075
1947
2117
1897
2499
2628
2734
1084
-
1389
1729
2173
2457
2289
2172
2241
2336
1900
2088
2241
-
2711
3136
3488
2638
2479
2770
2579
2732
3331
425
-
327
261
431
405
387
277
306
314
66
219
276
-
371
695
736
321
125
293
57
48
283
-------
TABLE D-15. ROUND 2 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CORRECTED NITRIC OXIDE
Number
Manufacturer CID Cyi. In Group Mean
Min
Standard
Max Deviation
Chevrolet
CMC
Chevrolet&GMC
Chevrolet
IHC
Dodge
IHC
Ford
White
Chevrolet
CMC
Ford
Ford
Ford
IHC
Ford
CMC
Ford
IHC
Chevrolet
Dodge
Chevrolet
Ford
366
401
427
350
392
318
478
360
400
307
350
240
361
302
304
300
292
391
345
250
225
292
330
V8
V6
V8
V8
V8
V8
V8
V8
6
V8
V8
6
V8
V8
V8
6
6
V8
V8
6
6
6
V8
2
1
2
7
23
15
7
5
5
11
2
3
3
1
13
17
5
4
8
4
8
2
4
D-30
815
858
1155
1323
1431
1603
1611
1735
1741
1891
1902
1939
1965
2009
2117
2162
2217
2322
2332
2338
2354
2487
2950
483
-
921
989
429
881
1246
1481
1458
1260
1845
1734
1745
-
1233
980
1226
1947
1958
2218
2161
2394
2686
1146
-
1386
1677
2173
2550
2346
2131
2079
2504
1959
2184
2194
2683
3314
3114
2693
2663
2445
2548
2579
3268
469
-
331
259
438
425
382
260
270
325
81
228
225
-
391
675
688
368
292
100
122
131
266
-------
TABLE D-16.ROUND 3 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - HYDROCARBONS (PPM HEX. )
Number
Standard
Manufacturer
Chevrolet
CMC
CMC
Ford
Chevrolet
White
Dodge
Ford
Ford
IHC
Ford
Chevrolet
Chevrolet
IHC
Chevrolet
Ford
IHC
IHC
Dodge
Ford
CMC
Ford
Chevrolet&GMC
CID
366
292
350
300
292
400
225
302
360
304
391
307
350
345
250
240
478
392
318
361
401
330
427
Cyl.
V8
6
V8
6
6
6
6
V8
V8
V8
V8
V8
V8
V8
6
6
V8
V8
V8
V8
V6
V8
V8
In Group
2
5
2
14
2
5
8
1
5
13
4
10
7
8
4
3
7
23
15
3
1
4
2
D-31
Mean
126
172
177
179
191
205
205
214
231
238
253
253
255
256
259
281
288
294
294
309
312
337
1042
Min
115
95
139
102
170
140
182
163
198
190
185
167
193
222
274
231
185
221
305
-
278
245
Max
137
219
215
251
212
306
245
-
274
273
316
426
364
339
293
289
506
539
378
312
-
406
1838
Deviation
16
47
54
42
30
68
25
-
43
25
61
74
69
46
34
8
99
85
43
4
-
60
1126
-------
TABLE D-17. ROUND 3 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CARBON MONOXIDE (PERCENT)
Number Standard
Manufacturer
Chevrolet
Ford
CMC
IHC
IHC
CMC
Chevrolet
Ford
Chevrolet
Ford
Ford
IHC
Chevrolet
Dodge
Dodge
Ford
Ford
Ford
Chevrolet
IHC
Chevrolet&GMC
White
GMC
CID
292
300
292
345
304
350
250
391
366
330
302
478
350
318
225
361
360
240
307
392
427
400
401
Cyl.
6
6
6
V8
V8
V8
6
V8
V8
V8
V8
V8
V8
V8
6
V8
V8
6
V8
V8
V8
6
V6
In Group
2
14
5
8
13
2
4
4
2
4
1
7
7
15
8
3
5
3
1 0
23
2
5
1
D-32
Mean
0.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
2.
2.
2.
2.
2.
2.
2.
5.
89
10
12
20
39
45
47
50
50
52
67
69
74
77
89
11
24
32
56
76
88
89
07
Min
0.
0.
0.
0.
0.
1.
1.
0.
1.
0.
1.
1.
1.
1.
1.
1.
0.
1.
1.
2.
1.
84
19
63
92
86
07
09
72
18
83
-
28
06
39
60
54
76
85
97
38
07
67
Max
0.
4.
1.
1.
2.
1.
1.
2.
1.
3.
2.
2.
2.
2.
2.
2.
3.
3.
11.
3.
4.
93
55
91
52
14
83
84
41
81
05
-
78
49
24
19
41
50
41
1
92
68
23
-
Deviation
0.
1.
0.
0.
0.
0.
0.
0.
0.
1.
0.
0.
0.
0.
0.
0.
1.
0.
2.
1.
1.
06
28
53
21
36
54
31
83
45
05
52
53
24
21
49
28
32
38
11
14
02
-
-------
TABLE D-18. ROUND 3 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - OBSERVED NITRIC OXIDE (PPM)
Number Standard
Manufacturer CID CyL In Group Mean Min Max Deviation
Chevrolet &GMC
CMC
Chevrolet
Chevrolet
Ford
IHC
Dodge
IHC
Ford
White
Chevrolet
Ford
Ford
CMC
IHC
Ford
Ford
Dodge
IHC
Chevrolet
GMC
Ford
Chevrolet
427
401
366
350
240
392
318
478
360
400
307
361
302
350
345
300
391
225
304
250
292
330
292
V8
V6
V8
V8
6
V8
V8
V8
V8
6
V8
V8
V8
V8
V8
6
V8
6
V8
6
6
V8
6
2
1
2
7
3
23
15
7
5
5
10
3
1
2
8
14
4
8
13
4
5
4
2
D-33
695
899
948
1458
1515
1585
1744
1756
1761
1766
1866
1873
1956
1988
2219
2293
2306
2326
2353
2400
2422
2582
2586
627
-
775
1010
1106
272
805
1325
1521
717
1642
1786
-
1896
1939
1140
1954
1912
1771
2295
1280
1883
2452
763
-
1121
1829
2258
2233
2632
2414
1913
2515
2425
1929
-
2080
2461
3811
2655
2755
2884
2492
3445
2973
2719
96
-
245
268
645
498
439
363
155
682
228
76
130
166
837
384
265
344
103
770
511
189
-------
TABLE D-19. ROUND 3 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CORRECTED NITRIC OXIDE (PPM)
Number
Standard
Manufacturer
Chevrolet&GMC
Chevrolet
CMC
Chevrolet
Ford
IHC
IHC
Dodge
Ford
White
CMC
Chevrolet
Ford
Ford
Ford
Ford
IHC
Dodge
IHC
Chevrolet
CMC
Chevrolet
Ford
CID
427
366
401
350
240
392
478
318
360
400
350
307
361
391
302
300
345
225
304
250
2Q2
2Q2
330
Cyl.
V8
V8
V6
V8
6
V8
V8
V8
V8
6
V8
V8
V8
V8
V8
6
V8
6
V8
6
6
b
V8
In Group
2
2
1
7
3
23
7
15
5
5
2
10
3
4
1
14
8
8
13
4
5
2
4
D-34
Mean
687
885
899
1377
1496
1538
1669
1671
1743
1773
1865
1879
1888
1952
1956
2285
2310
2346
2373
2378
2386
2582
2586
Min
625
784
-
884
1110
266
1353
799
1504
720
1816
1532
1859
1680
-
1168
2066
1946
1790
2279
1226
2435
1827
Max
749
985
-
1599
2242
2332
2202
2521
1934
2543
1914
2333
1915
2206
-
3879
2616
2628
2843
2475
3672
2730
3006
Deviation
87.
142.
-
249.
646.
482.
301.
425.
161.
688.
69.
214.
28.
293.
-
825.
204.
245.
316.
101.
871.
208.
546.
7
1
7
2
4
4
1
8
2
3
3
1
1
2
5
9
7
8
0
6
8
-------
TABLE D-20. ROUND 4 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - HYDROCARBONS (PPM HEX. )
Ma nufa ctu r e r
Chevrolet
Ford
CMC
Chevrolet
CMC
White
Chevrolet
Chevrolet
Chevrolet&GMC
Ford
Dodge
IHC
IHC
Ford
Ford
Chevrolet
IHC
Ford
Dodge
CMC
Ford
IHC
Ford
CID
366
300
350
350
292
400
292
307
427
302
225
304
345
240
360
250
392
391
318
401
361
478
330
Cyl.
V8
6
V8
V8
6
6
6
V8
V8
V8
6
V8
V8
6
V8
6
V8
V8
V8
V6
V8
V8
V8
Number
In Group
2
14
2
7
5
5
2
10
2
1
8
13
8
3
5
4
21
4
15
1
3
7
4
D-35
Mean
152
192
196
200
200
202
202
207
232
235
238
242
248
250
251
251
266
281
288
298
399
572
811
Min
121
120
181
121
125
129
179
161
231
175
166
186
211
237
223
177
224
212
282
153
253
Max
182
272
211
290
291
311
225
259
232
-
300
324
302
288
272
272
483
340
355
-
586
1922
2093
Standard
Deviation
62
40
21
62
65
74
33
11
1
44
34
42
54
13
20
66
65
49
-
164
614
860
-------
TABLE D-21. ROUND 4 AVERAGE EMISSIOK INSPECTION RESULTS
BY ENGINE MODEL - CARBON MONOXIDE (PERCENT)
Manufacturer
Ford
Ford
Chevrolet
CMC
Chevrolet
Chevrolet
1HC
IHC
IHC
Chevrolet
Ford
CMC
Dodge
Ford
Ford
Ford
Dodge
Ford
ChevroletkGMC
IHC
Chevrolet
White
CMC
CID
302
300
292
292
366
250
345
304
478
350
330
350
318
240
361
391
225
360
427
392
307
400
401
Cyl.
V8
6
6
6
V8
6
V8
V8
V8
V8
V8
V8
V8
6
V8
V8
6
V8
V8
V8
V8
6
Vb
Number
In Group
1
14
2
5
2
4
8
13
7
7
4
2
15
3
3
4
8
5
2
21
10
5
1
D-36
Mean
0.
1.
1.
1.
1.
1.
1.
1
1.
1.
1.
1.
1.
1.
1.
1.
1.
2.
2.
2.
2.
2.
4.
97
01
02
14
21
23
30
34
48
56
71
82
83
85
87
93
96
24
34
38
55
64
90
Min
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
1.
1.
1.
1.
0.
1
1
1
1.
1.
1.
15
84
51
75
68
91
86
80
87
73
33
45
82
55
74
44
55
82
65
94
44
-
Max
4.
1.
1.
1.
1.
1.
2.
1.
2.
3.
2.
2.
1.
2..
3.
2.
2.
2.
3.
3.
3.
-
78
19
96
66
8
62
24
97
37
89
30
23
87
48
36
17
90
85
96
24
35
-
Standard
Deviation
1.
0.
0
0.
0
0
0
0
0.
1.
0.
0.
0.
0.
1.
0.
0.
0.
0.
0.
0
33
25
64
55
48
22
39
44
"' ,1
49
69
25
04
53
29
26
52
73
55
. 13
73
-
-------
TABLE D-22. ROUND 4 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - OBSERVED NITRIC OXIDE (PPM)
Manufacturer
Chevrolet
CMC
Chevrolet&GMC
Chevrolet
IHC
IHC
GMC
Ford
Dodge
Ford
Chevrolet
Ford
White
Ford
Ford
Dodge
IHC
IHC
GMC
Ford
Ford
Chevrolet
Chevrolet
CID
366
401
427
350
392
478
350
240
318
360
307
361
400
391
330
225
304
345
292
302
300
250
292
Cyl.
V8
V6
V8
V8
V8
V8
V8
6
V8
V8
V8
V8
6
V8
V8
6
V8
V8
6
V8
6
6
6
Number
In Group
2
1
2
7
21
7
2
3
15
5
10
3
5
4
4
8
13
8
5
1
14
4
2
Mean
690
904
1020
1118
1397
1404
1498
1627
1634
1659
1730
1816
1850
1932
2047
2100
2377
2429
2456
2469
2478
2608
2659
Min
439
-
591
844
717
1035
1437
1088
946
1537
1071
1120
1484
1438
1553
1454
1492
1829
1064
-
1256
2026
2635
Max
941
-
1448
1438
2143
1755
1559
2165
2408
1853
2328
2364
2363
2302
2780
2565
2950
2862
3681
4008
3134
2683
Standard
Deviation
185
606
185
368
260
86
762
396
128
109
635
355
435
529
347
505
335
1298
-
849
228
34
D-37
-------
TABLE D-Z3. ROUND 4 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CORRECTED NITRIC OXIDE (PPM)
Manufacturer
Chevrolet
CMC
Chevrolet&GMC
Chevrolet
IHC
IHC
Ford
Ford
Dodge
GMC
White
Chevrolet
Ford
Ford
Ford
IHC
Dodge
IHC
Chevrolet
Ford
Ford
GMC
Chevrolet
CID
366
401
427
350
478
392
240
360
318
350
400
307
361
391
330
345
225
304
250
302
300
292
292
Cyl.
V8
V6
V8
V8
V8
V8
6
V8
V8
V8
6
V8
V8
V8
V8
V8
6
V8
6
V8
6
6
6
Number
In Group
2
1
2
7
7
21
3
5
15
2
5
10
3
4
4
8
8
13
4
1
14
3
2
Mean
628
795
981
1142
1274
1300
1301
1478
1509
1517
1521
1578
1599
1910
1944
2008
2034
2138
2145
2262
2293
2307
2455
Min
378
-
591
819
1011
720
870
1371
918
1421
1140
1071
1054
1411
1267
1648
1460
1482
1653
-
1150
1001
2385
Max
878
-
1370
1415
1517
1865
1732
1629
2072
1613
1928
1969
20VO
226*4
2727
2274
2447
2582
2698
3172
3696
2524
Standard
Deviation
189
-
550
189
175
324
610
109
311
136
306
86
520
425
607
228
342
373
214
-
780
1164
98
D-38
-------
TABLE D-24. ROUND 5 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - HYDROCARBONS
Manufacturer
Chevrolet
Chevrolet
CMC
White
Ford
Dodge
IHC
Chevrolet
Ford
GMC
IHC
IHC
Chevrolet
Dodge
Ford
Chevrolet
GMC
Ford
Ford
Ford
IHC
Ford
Chevrolet
CID
366
427
350
400
300
225
478
250
302
401
345
392
292
318
360
350
292
240
330
391
304
361
307
Cyl.
V8
V8
V8
6
6
6
V8
6
V8
V6
V8
V8
6
V8
V8
V8
6
6
V8
V8
V8
V8
V8
Number
in Group
2
1
2
5
14
8
7
4
1
1
8
21
2
15
5
7
1
3
4
4
13
3
9
Mean
160
193
208
208
212
227
228
249
252
252
262
263
269
282
285
294
316
321
351
375
380
386
841
Min.
139
192
117
137
106
165
210
142
119
214
218
171
206
304
268
229
189
256
174
Max.
180
223
298
314
297
273
288
439
696
371
485
476
547
347
531
604
2031
566
3906
Standard
Deviation
29
22
66
56
35
36
55
97
116
71
69
115
119
23
121
160
498
161
1313
D-39
-------
TABLE D-25. ROUND 5 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CARBON MONOXIDE
Manufacturer
CMC
Chevrolet
Ford
Ford
IHC
Chevrolet
IHC
Chevrolet
Chevrolet
IHC
Ford
Dodge
Chevrolet
Dodge
Ford
Ford
Chevrolet
Ford
Ford
GMC
White
IHC
GMC
CID
292
250
302
300
345
366
304
292
427
478
330
318
350
225
391
361
307
360
240
350
400
392
401
Cyl.
6
6
V8
6
V8
V8
V8
6
V8
V8
V8
V8
V8
6
V8
V8
V8
V8
6
V8
6
V8
V6
Number
in Group
1
4
1
14
8
2
13
2
1
7
4
15
7
8
4
3
9
5
3
2
5
21
1
Mean
0.
0.
0.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
2.
2.
2.
2.
2.
2.
2.
2.
5.
64
90
98
01
39
40
45
47
56
82
82
85
96
97
01
11
43
51
55
57
63
76
03
Min.
0
-
0
2
1
0
1
-
1
0
1
1
0
0
1
1
1
2
2
1
1
-
.88
.22
. 07
. 00
. 72
. 08
. 04
.67
.36
. 28
.39
.56
.50
.86
. 74
. 45
. 14
.61
. 34
Max.
0.
4.
2.
1.
2.
2.
2.
4.
2.
2.
1.
3.
2.
3.
3.
2.
2.
3.
7.
92
80
07
79
20
09
63
46
43
94
76
95
46
00
28
63
99
80
07
Standard
Deviation
0
-
1
0
0
0
0
-
0
1
0
0
0
1
0
0
0
0
0
0
1
_
.03
.31
.38
.56
. 37
.46
.64
. 78
.33
.67
. 14
.56
. 53
. 44
.64
.09
.60
.86
.34
_ _ _
D-40
-------
TABLE D-26. ROUND 5 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - OBSERVED NITRIC OXIDE
Manufacturer
Chevrolet
GMC
CMC
Ford
Chevrolet
Dodge
Ford
IHC
IHC
Chevrolet
White
Ford
Dodge
IHC
IHC
Chevrolet
Ford
Chevrolet
Ford
Ford
Ford
Chevrolet
GMC
CID
366
401
350
240
350
318
360
392
478
307
400
361
225
345
304
292
330
427
391
300
302
250
292
Cyl.
V8
V6
V8
6
V8
V8
V8
V8
V8
V8
6
V8
6
V8
V8
6
V8
V8
V8
6
V8
6
6
Number
in Group
2
1
2
3
7
15
5
21
7
9
5
3
8
8
13
2
4
1
4
14
1
4
1
Mean
913
1162
1303
1467
1500
1518
1519
1559
1659
1680
1753
1945
1990
2144
2242
2266
2304
2308
2324
2487
2501
2645
3337
Min.
701
1680
1215
468
603
1198
428
1344
923
1101
1623
1089
2779
1761
1917
837
1572
978
2217
Max.
1125
1680
1827
2279
2366
1698
2948
2040
2217
2393
2258
1352
2779
2786
2740
3129
2824
4047
3073
Standard
Deviation
300
533
320
597
494
196
598
290
407
538
318
387
488
328
357
999
540
869
605
D-41
-------
TABLE D-Z7. ROUND 5 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CORRECTED NITRIC OXIDE
Manufacturer
Chevrolet
CMC
CMC
Chevrolet
Ford
Dodge
IHC
Ford
Chevrolet
IHC
White
Ford
Chevrolet
Dodge
Ford
IHC
IHC
Chevrolet
Ford
Ford
Ford
Chevrolet
CMC
CID
366
401
350
350
240
318
392
360
307
478
400
361
427
225
391
345
304
292
330
302
300
250
292
Cyl.
V8
V6
V8
V8
6
V8
V8
V8
V8
V8
6
V8
V8
6
V8
V8
V8
6
V8
V8
6
6
6
Number
in Group
2
1
2
7
3
15
21
5
9
7
5
3
1
8
4
8
13
2
4
1
14
4
1
Mean
953
1027
1143
1224
1373
1458
1488
1525
1550
1577
1720
1862
1895
1933
2065
2145
2220
2266
2287
2473
2473
2520
3249
Min.
732
1361
374
1117
633
433
1194
820
1087
1092
1623
1114
1397
2827
1649
1925
803
1003
2201
Max.
1175
1361
1860
1772
2357
2518
1750
1970
1837
2321
2125
1337
2510
2827
2755
2721
3129
3940
2840
Standard
Deviation
313
308
484
350
503
515
214
375
269
519
252
363
479
528
382
347
1033
847
452
_
D-42
-------
TABLE D-28.
ROUND 6 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - HYDROCARBONS
Manufacturer
CMC
White
Ford
Chevrolet
Chevrolet
CMC
Ford
Dodge
IHC
Chevrolet
Ford
Ford
Ford
IHC
IHC
Ford
CMC
IHC
Chevrolet
Ford
Dodge
Chevrolet
Chevrolet
CID
350
400
300
366
292
292
302
225
345
250
360
240
361
478
304
330
401
392
350
391
318
307
427
Cyl.
V8
16
16
V8
16
16
V8
16
V8
16
V8
16
V8
V8
V8
V8
V6
V8
V8
V8
V8
V8
V8
Number
in Group
1
5
12
2
2
3
1
8
8
4
5
3
3
6
13
4
1
21
7
4
15
9
1
Mean
174
182
192
193
201
203
235
237
238
255
256
275
299
315
322
336
346
383
408
448
537
626
(Not
Min.
154
131
184
150
104
-
187
172
228
164
205
242
173
192
213
-
182
246
240
225
170
Available
Max.
237
253
202
252
265
-
328
343
295
335
318
364
417
742
547
-
2062
892
845
2857
2082
for Test)
Standard
Deviation
33
39
13
72
86
-
45
55
32
66
61
61
79
181
146
-
393
217
272
713
805
D-43
-------
TABLE D-29.
ROUND 6 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CARBON MONOXIDE
Manufacturer
Ford
Chevrolet
Ford
CMC
IHC
Chevrolet
Chevrolet
IHC
Ford
Dodge
Ford
IHC
Chevrolet
Dodge
CMC
Ford
Ford
Chevrolet
White
Ford
IHC
CMC
Chevrolet
CID
300
292
302
350
345
250
366
304
240
318
330
478
350
225
292
361
391
307
400
360
392
401
427
Cyl.
16
16
V8
V8
V8
16
V8
V8
16
V8
V8
V8
V8
16
16
V8
V8
V8
16
V8
V8
V6
V8
Number
in Group
12
2
1
1
8
4
2
13
3
15
4
6
7
8
3
3
4
9
5
5
21
1
1
Mean
. 851
. 875
1.05
1. 18
1.48
1.55
1.72
1.79
1. 81
1.93
2.02
2. 12
2. 13
2. 13
2. 33
2. 38
2. 58
2. 62
2. 78
2. 85
3. 23
5. 60
Min.
0. 35
0. 58
-
-
0. 99
1.08
1. 25
1. 18
0.65
1. 51
0. 88
1.06
1.49
1. 82
0.80
1.69
1.48
2. 03
1. 52
2.04
1. 31
_
(Not Available
Max.
3.65
1. 17
-
-
2. 15
2.02
2. 19
2. 26
2.42
2. 44
4. 57
2. 77
3.63
2. 53
4. 63
2. 79
4. 53
3. 25
3. 95
3.37
8. 23
_
for Test)
Standard
Deviation
0.919
0.417
-
-
0. 388
0. 384
0. 665
0. 335
1.010
0. 260
1. 720
0.671
0. 744
0. 221
2.020
0.599
1.440
0. 388
0. 904
0. 554
1. 870
_
D-44
-------
TABLE D-30. ROUND 6 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - OBSERVED NITRIC OXIDE
Manufacturer
Chevrolet
CMC
IHC
IHC
Chevrolet
Ford
Chevrolet
CMC
Ford
CMC
Dodge
White
Ford
IHC
Ford
IHC
Ford
Dodge
Ford
Chevrolet
Ford
Chevrolet
Chevrolet
CID
366
401
478
392
307
360
350
292
240
350
318
400
361
304
391
345
330
225
302
250
300
292
427
Cyl.
V8
V6
V8
V8
V8
V8
V8
16
16
V8
V8
16
V8
V8
V8
V8
V8
16
V8
16
16
16
V8
Number
in Group
2
1
6
21
9
5
7
3
3
1
15
5
3
13
4
8
4
8
1
4
12
2
1
Mean
650
1097
1361
1458
1497
1513
1563
1625
1627
1634
1756
1848
1949
2091
2100
2105
2152
2215
2216
2597
2982
3033
Min.
406
-
957
317
559
1053
823
1045
1364
-
1223
1170
1504
1453
1379
1606
1032
1874
-
2118
2186
2885
(Not Available
Max.
894
-
2373
2333
2195
1886
2646
2692
1909
-
2687
2323
2425
2889
2639
2752
2968
2494
-
2951
3667
3180
for Test)
Standard
Deviation
345
-
521
588
543
322
738
925
273
-
409
429
461
470
601
449
859
195
-
404
444
209
D-45
-------
TABLE D-31. ROUND 6 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CORRECTED NITRIC OXIDE
Manufacturer
Chevrolet
CMC
IHC
IHC
Chevrolet
Ford
Chevrolet
Dodge
Ford
CMC
CMC
White
Ford
Ford
Dodge
IHC
IHC
Ford
Ford
Chevrolet
Chevrolet
Ford
Chevrolet
CID
366
401
392
478
307
360
350
318
240
350
292
400
302
361
225
345
304
391
330
250
292
300
427
Cyl.
V8
V6
V8
V8
V8
V8
V8
V8
16
V8
16
16
V8
V8
16
V8
V8
V8
V8
16
16
16
V8
Number
in Group
2
1
21
6
9
5
7
15
3
1
3
5
1
3
8
8
13
4
4
4
2
12
1
Mean
625
1076
1229
1319
1337
1408
1543
1561
1572
1641
1675
1725
1761
1801
1937
1949
1971
2050
2125
2336
2541
2625
Min.
389
-
285
905
591
1119
838
979
1295
-
1111
984
1440
1491
1606
1294
1274
980
1853
2537
2040
(Not Available
Max.
860
-
2124
2382
2153
1641
2657
2426
1894
2777
2225
Z212
2435
2413
2646
2645
2946
2623
2544
3311
for Test)
Standard
Deviation
333
-
522
561
472
187
763
459
302
-
954
462
-
388
330
318
445
651
872
357
5
384
D-46
-------
TABLE D-32. ROUND 7 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - HYDROCARBONS
Manufacturer
CMC
Chevrolet
Chevrolet
Chevrolet
Ford
Ford
Dodge
Ford
IHC
White
Ford
Chevrolet
CMC
Ford
IHC
Ford
Ford
Chevrolet
Dodge
IHC
Chevrolet
IHC
CMC
CID
292
350
366
292
300
302
225
361
392
400
360
250
401
391
304
240
330
427
318
345
307
478
350
Cyl.
16
V8
V8
16
16
V8
16
V8
V8
16
V8
16
V6
V8
V8
16
V8
V8
V8
V8
V8
V8
V8
Number
in Group
4
6
2
2
11
1
8
3
20
5
5
3
1
4
12
2
4
1
14
5
9
3
2
Mean
199
200
212
227
236
256
257
265
268
286
290
292
292
295
295
304
378
393
431
621
652
930
1051
Min.
134
153
143
202
155
-
199
220
138
228
249
277
-
266
240
280
260
-
210
164
205
220
250
Max.
266
290
280
251
306
-
289
312
510
352
310
308
-
324
501
328
602
-
2106
2016
2151
1901
1851
Standard
Deviation
58.08
54.23
96.87
34.65
41.32
-
36.60
46.03
83.86
47.90
25.63
15.57
-
23.73
78.21
33.94
152.9
-
485.8
783.0
801.2
870.2
1132
D-47
-------
TABLE D--33. ROUND 7 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CORRECTED NITRIC OXIDE
Manuf a ctur e r
Chevrolet
Chevrolet
IHC
GMC
Chevrolet
IHC
Dodge
White
Ford
Ford
Chevrolet
Ford
IHC
GMC
IHC
Dodge
Chevrolet
Ford
GMC
Ford
Ford
Chevrolet
Ford
CID
427
366
392
401
350
478
318
400
361
360
307
240
304
292
345
225
250
391
350
330
302
292
300
Cyl.
V8
V8
V8
V6
V8
V8
V8
16
V8
V8
V8
16
V8
16
V8
16
16
V8
V8
V8
V8
16
16
Number
in Group
1
2
20
1
6
3
14
5
3
5
9
2
12
4
5
8
3
4
2
4
1
2
11
Mean
647
841
946
994
1201
1304
1311
1482
1605
1622
1821
1890
1987
2006
2107
2145
2154
2180
2256
2386
2430
2707
3021
Min.
617
300
-
500
1009
755
1067
1445
1327
4197
1888
1124
1333
1918
1780
1940
1651
1945
1235
_
2218
2275
Max.
1065
1931
-
1629
1540
2366
1955
1901
1826
2149
1891
2572
2744
2392
2567
2372
2951
2567
3058
_
3196
3769
Standard
Deviation
316.8
466.3
-
458.8
270.5
424.0
433. 1
256.4
213.5
206. 1
2. 12
395.3
740.0
187.0
236.9
216.0
613.9
440.0
799.3
_
691.6
430.8
D-48
-------
TABLE D-34. ROUND 7 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - CARBON MONOXIDE
Manufacturer
Ford
Ford
CMC
Chevrolet
IHC
Ford
Chevrolet
IHC
Ford
IHC
Chevrolet
Dodge
Dodge
GMC
Ford
Chevrolet
Ford
Ford
Chevrolet
White
IHC
Chevrolet
GMC
CID
300
302
350
292
345
240
250
478
330
304
350
318
225
292
361
307
391
360
366
400
392
427
401
Cyl.
16
V8
V8
16
V8
16
16
V8
V8
V8
V8
V8
16
16
V8
V8
V8
V8
V8
16
V8
V8
V6
Number
in Group
11
1
2
2
5
2
3
3
4
12
6
14
8
4
3
9
4
5
2
5
20
1
1
Mean
0.67
1.13
1.43
1.45
1.50
1.67
1.87
1.96
1.99
2.02
2.09
2. 14
2. 18
2.33
2.62
2.74
2.85
2.98
3.37
3.48
3.95
4.40
5.75
Min.
0.41
-
1.14
0.62
1.08
1.38
1.45
1. 32
0.71
1.32
0.75
1.63
1.72
0. 980
2. 10
2.21
1.49
2.15
1. 18
1.77
1.21
_
Max.
1. 13
-
1.72
2. 28
1.90
1.96
2.08
2.74
4.87
4.96
6.08
2.81
2. 53
4.62
2.92
3.22
3.83
3.82
5.56
4.42
8.36
-
_
Standard
Deviation
0.206
0.410
1. 174
0.314
0.410
0.364
0.719
1.934
0.987
2.00
0.286
0.291
1.585
0.452
0.348
1.033
0.695
3.097
1.078
2.036
-
_
D-49
-------
TABLE D-35. ROUND 7 AVERAGE EMISSION INSPECTION RESULTS
BY ENGINE MODEL - OBSERVED NITRIC OXIDE
Manufacturer
Chevrolet
Chevrolet
IHC
CMC
IHC
Dodge
Chevrolet
White
Ford
Ford
Chevrolet
Ford
CMC
IHC
Ford
IHC
Chevrolet
CMC
Ford
Dodge
Chevrolet
Fo rd
Ford
CID
427
366
392
401
478
318
350
400
361
360
307
240
292
304
391
345
250
350
330
225
292
302
300 16
Cyl.
V8
V8
V8
V6
V8
V8
V8
16
V8
V8
V8
16
16
V8
V8
V8
16
V8
V8
16
16
V8
Number
in Group
1
2
20
1
3
14
6
5
3
5
9
2
4
12
4
5
3
2
4
8
2
1
11
Mean
659
816
1027
1136
1284
1314
1451
1478
1646
1650
1838
1973
2013
2022
2063
2079
2085
2277
2282
2283
2709
2777
2953
Min.
636
294
-
998
752
578. 5
1067
1490
1313
1543
1971
1328
1060
1562
1879
1876
1997
1289
1843
2234
-
2230
Max.
995
1998
-
1513
2536
2036
1928
1938
1909
2243
1974
2733
2652
2792
2291
2294
2557
2885
2657
3183
3576
Standard
Deviation
253.9
509. 5
-
262. 1
458.7
578.5
419. 3
253. 3
257.2
211.5
2. 121
740.5
416. 9
580.9
166. 1
209.0
396.0
694.8
301. 3
671.0
_
380. 3
D-50
-------
TABLE D-36. MEISSION RESULTS FOR VEHICLES REQUIRING TIMING OR IDLE SPEED ADJUSTMENTS
HEAVY-DUTY GASOLINE SURVEILLANCE - FOUR MONTHS INSPECTION
Emission Results
Unit
No.
14
22
23
24
i5
40
43
47
49
50
57
58
60
61
62
74
80
82
92
93
96
97
98
99
100
101
102
103
106
1 1 1
118
122
1 25
134
Date
Tea ted
5-26-71
6-14-71
6-11-71
9-7-71
4-15-71
4-15-71
4-13-71
5-17-71
5-20-71
5-20-71
5-21-71
5-7-71
5-6-71
5-6-71
5-18.71
D--TO--7 1
5-26-71
5-27-71
6-2-71
6-7-71
6-12-71
6-11-71
6-11-71
6-8-71
6-8-71
6-11-71
6-7-71
6-16-71
6-2-71
6-9-71
6-20-71
6-8-71
8-13-71
Truck
No.
24342
5131
5132
5136
5141
8811
6856
312
301
302
315
316
253
254
391
-«95
1029
135
2120
27
4T1
4T16
1T22
2T9
2T12
4T23
7
34
2119
2082
043247
101
043221
1348
Source
Ryder
C. P. S. B.
C. P. S. B.
C. P. S. B.
C.P.S.B.
C.P.S.B.
C. P. S. B.
C.W. B.
C.W.B.
C.W. B.
C.W.B.
C.W.B.
C. W. B.
C.W.B.
C.W.B.
-C.-PvS. B.
Lone Star
Herder
PtrR Dept.
B.M.W.
B.C.R.D.
B.C.R.D.
B.C.R.D.
B.C.R.D.
E. C.R.D.
B.C.R.D.
B. M. W.
Southern
PgiR Dept.
P8.R Dept.
P.O.D.
Face
P.O.D.
S.A.P.W.
Vehicle
Year
1970
1971
1970
1971
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1950
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
Make
IHC
IHC
me
IHC
IHC
Ford
Ford
IHC
IHC
IHC
me
IHC
Chevrolet
Chevrolet
Chevrolet
JHC
Chevrolet
Ford
Ford
Ford
Ford
Ford
Ford
Ford
Ford
Ford
Ford
CMC
Ford
Dodge
GMC
Dodge
IHC
Engine
CID
478
392
392
392
392
300
300
304
304
304
304
304
307
307
366
392
307
300
360
360
240
240
330
330
330
330
360
427
360
392
318
292
318
392
Cyl.
V8
V8
V8
V8
V8
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
V8
V8
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
V8
V8
Trans. GVW,
Speeds* Ibs
5 Hi-Lo 32, 000
3 auto 25. 500
Timing 14° early,
3 auto 25,500
Timing 15* early.
3 auto 25, 500
Timing 5" early
3 auto 25. 500
4 16,000
Timing 8° early
4 16,000
Timing 6° late
4 19,700
Timing 6° early
4 10,000
Timing 5° early,
4 10,000
Timing 5° early
4 19,700
Timing 5" early
4 19,700
Timing 10* early
4 7, 500
Timing 7" early
4 7. 500
Timing 8* late
5 32.000
Timing 8* early
6 25.500
Timing 5' early
4 6, 600
Timing 6B early
5 21,000
Timing 8° early
4 8, 300
Timing 4' late
4 7,500
Timing 4B late
3 7.500
Timing 6" late
3 7, 500
5 21,000
Timing 4" early
4 21,000
Timing 10" early
4 21,000
5 21,000
Timing 10° early.
4 6, 100
Timing 4° early
5 32,500
Timing 4° early,
4 8,300
Timing 10" early.
3 auto 10, 000
4 10,000
Timing 6° early
3 auto 1 0, 000
6 auto 34, 000
Timing 15" early
Vehicle Test
Type Miles
Tractor 4,261
Idle speed 150 rpm high
Line 1,499
Idle speed 200 rpm high
Line 827
Line 2,958
Line 58*
Idle speed 350 rpm high
Service 4, 174
Service 2, 848
Service 5,616
Crew Truck 2, 788
Idle speed 100 rpm low
Crew Truck 2, 636
Service 2, 433
Service 978
Service 1,311
Service 3, 833
Crane 534
Line 1, 722
Delivery 10, 511
Freight 4, 736
Maintenance 2, 104
Repair 5,482
Maintenance 5,392
Welder 3,849
Idle speed 250 rpm low
Water Truck 8, 182
Water Truck 4.932
Water Truck 3, 572
Idle speed 100 rpm low
Water Truck 9, 154
Idle speed 125 rpm high
Maintenance 4,821
Moving 32,371
Idle speed 200 rpm high
Maintenance 958
Idle speed 100 rpm low
Idle speed 100 rpm low
Idle speed 150 rpm high
Mail 2,076
Idle speed 135 rpm low
Delivery 5,392
Delivery 2,031
Idle speed 100 rpm high
Garbage 3,348
Condition
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
Adjusted
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
HC,
ppm
239
241
288
250
365
296
255
238
261
249
212
187
210
216
223
210
264
206
247
226
295
286
240
195
245
246
192
261
186
177
309
266
284
267
150
158
280
275
298
290
327
248
344
237
300
261
388
252
349
304
359
319
292
269
236
274
274
268
246
241
284
338
313
317
315
322
324
229
179
CO,
%
1.53
1.53
2.77
2.71
2.27
2.19
2.08
2. 10
2.38
2.37
0.31
0.29
0.70
0.74
1.27
1.25
1.45
1.44
2.60
2.55
1.41
1.54
1.30
1.27
3.39
3.33
2.56
3.37
0.76
0.63
1.71
1.67
2.98
2.95
0.65
0.65
1.73
1.94
2.23
2.32
1. 13
0.99
1.54
1.53
0.52
0.52
0.81
0.80
0.91
0.90
1.22
1.31
2.19
1.84
2. 18
2. 11
2.29
2.33
2.41
2. 28
3.40
1.92
1.99
1.99
2.11
2.05
2.26
6.56
6.59
NO,
Objt
1450
1439
1137
651
1642
871
1493
1507
879
747
3347
Z770
2572
3224
2155
1613
2319
1966
1743
1457 .
2517
2333
2332
1509
1539
1172
1199
1406
1084
1041
1629
M69
2336
1691
2521
2145
1850
1924
1680
1837
1703
2336
1865
1966
3009
2517
3331
2838
2738
2532
2734
2295
2172
1873
1389
1501
1597
1619
1797
1777
628
1804
1798
2445
1890
1252
1261
434
492
ppm
Corr.
1495
1484
1157
663
1704
804
1493
1507
924
785
3093
2559
2366
2966
2114
1582
2328
1974
1749
1463
2683
2487
2451
1586
1617
1232
J260
1478
1146
1100
1691
«46
2504
1813
2599
2111
1850
1887
1648
1802
1734
2378
1899
2001
3063
2562
3268
2784
2686
2484
2783
2336
2131
1837
1389
1501
1567
1588
1889
1868
652
1770
1758
2496
1930
1316
1325
429
506
Unit
No.
14
22
23
24
25
40
43
47
49
50
57
58
60
61
62
74
80
82
92
93
96
97
98
99
100
101
102
103
106
111
118
122
125
134
* Hi-lo means two-speed rear axle.
-------
TABLE D-37. EMISSION RESULTS FOR VEHICLES REQUIRING TIMING OR IDLE SPEED ADJUSTMENTS
HEAVY-DUTY GASOLINE SURVEILLANCE - EIGHT MONTHS INSPECTION
Emission Results
Unit
No.
f-j
in
I I
1 i.
i ->
\''
j }
L L
L i
24
27
39
46
47
48
56
67
69
70
73
84
96
99
101
10-)
110
1 12
144
150
1S1
Date
Tested
8-ZO-71
H- 1H.7I
7-25-71
h-IZ-71
1-1-71
H-3-71
Q 1 \ "71
M - 1 y - 1 1
9 - cQ - 7 1
1 -ZO-7Z
8-Z3-71
9-3-71
8-Z6-71
10-10-71
9-Z5-71
9-Z5-71
10-3-71
9-13-71
9-9-71
9-8-71
9-Z7-71
10-30-71
11-17-71
10-29-71
10-13-71
10-1 1-71
10-15-71
1-5-72
1-24-7Z
1-19-72
T ruck
No
351
352
24540
2434IK
56
54
C 1 -t 1
5 1 J I
C 1 -I J
D 1 3i-
5136
6615
8810
4950
31Z
314
313
252
5133
5140
5130
240
4TI
2T9
4T23
2085
2081
2170
503
4
1ST
Source
ABC
ABC
Ryder
Ryder
N. S. S. D.
N. S. S. D.
C. P. S. B.
C . P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. P. S. B.
C. W.B.
C. W. B.
C. W.B.
C. W.B.
C.P. S. B.
C. P. S. B.
C. P. S.B.
Herder
B. C. R. D.
B.C. R. D.
B. C. R. D.
P&R Dept.
C. P. &R.
C. P. tR.
ABC
JFC
Sou thorn
Vehicle
Year
1970
1970
1970
1970
1970
1970
1971
l Q 7n
I V / U
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1971
Make
White
While
IHC
IHC
IHC
IHC
IHC
IHC
IHC
Ford
Ford
IHC
IHC
IHC
IHC
Dodge
IHC
IHC
IHC
Ford
Ford
Ford
Ford
Chevrolet
Chevrolet
Chevrolet
IHC
Chevrolet
Chevrolet
Engine
CID
400
400
478
478
345
345
39Z
392
392
300
300
304
304
304
304
318
392
392
392
361
240
330
330
307
307
307
478
350
427
Cyl.
6
6
V8
V8
V8
V8
V8
V8
V8
6
6
V8
V8
V8
V8
V8
V8
V8
V8
V8
6
V8
V8
V8
V8
V8
V8
V8
V8
Trans GVW Vehicle Cest
Speeds* Ibs. Type Miles
5 Hi-Lo 30,000 Tractor 12.906
Timing 9° early
5 Hi-Lo 30,000 Tractor 12,250
Timirrg 16° late. Idle speed 250 rpm low
5 Hi-Lo 32,000 Tractor 12,250
Idle speed 150 RPM high
5 Hi-Lo 32,000 Tractor 15,087
Timing 7o° early
5 25.500 School Bus 16.628
Timing 6° early, Idle speed 400 rpm high
5 22,000 School Bus 7,750
Timing 5° early, Idle speed 250 rpm high
3 auto 25, 500 Line 5, 171
Timing 13° early
3-auto 25, 500 Line 3, 471
Timing 109 early, Idle speed 225 rpm high
3-auto 25,500 Line 7,414
Timing 5° early, Idle speed 150 rpm high
4 10,000 Service 4,300
Timing 8° late
4 16,000 Service 7,242
Timing 4° late, Idle speed 150 rpm low
4 19,700 Bucket Truck 15, 59'
Idle Speed 300 rpm high
4 19,700 Service 12,014
Timing 6° early, Idle speed 125 rpm high
4 19,700 Service 4,589
Timing 11° early
4 19,700 Service 7,311
Timing 13° early
3-auto 7,500 Service 4,979
Timing 5° late
6-auto 25.500 Line 3,046
Timing 5° early
6-auto 25,500 Line 7,902
Timing^ 5° early
6 -auto 25,500 Line 4,693
Timing 19° early. Idle speed 500 rpm high
5 22,000 Freight 14,979
Timing 12° early
3 7,500 Maintenance 10, 882
Timing 6° late, Idle speed 150 rpm
4 21,000 Water Truck 11,214
Timing 7° early
5 21,000 Water Truck 18, 295
Timing 7° early
3 7,500 Maintenance 7,815
Timing 8° late
3 7,500 Maintenance 3,970
Timing 4° early
4 10,000 Maintenance 9,848
Timing 5° late, Idle 150 rpm low
5 32,000 Rental 16,893
Idle Speed 200 rpm high
4 24,000 Delivery 15,475
Idle Speed 300 rpm high
5 32,500 Moving 16.Z34
Timing 10° late
Test HC,
Condition ppm
As received 306
Adjusted 199
As receiver! 151
Adjusted 154
As received 294
Adjusted 336
As received 231
Adjusted 201
As received 253
Adjusted 274
As received 193
Adjusted 227
Adjusted 189
Adjusted 279
As received 261
Adjusted 149
As received 120
Adjusted 183
As received 251
Adjusted 247
As received 198
Adjusted 284
As received 219
Adjusted 200
As received 267
Adjusted 250
As received 249
Adjusted 163
As received 221
Adjusted 228
As received 213
Adjusted 176
As received 243
Adjusted 222
As received 287
Adjusted 277
As received 311
Adjusted 315
As received 289
Adjusted 347
As received 298
Adjusted 264
As received 367
, Adjusted 341
1 As received 204
Adjusted 200
As received 426
Adjusted 860
As received 207
Adjusted 220
As received 233
Adjusted 256
As received 307
Adjusted 291
Ae received 1838
Adjusted 260
CO,
%
1. 67
1. 42
4. 23
4. 08
1.68
1.65
1. 31
1. 15
1. 34
1. 23
1. 52
1. 36
2. 94
2. 81
2. 26
1.88
1. 57
1.61
0. 56
0.68
3. 52
3.63
1.75
1.67
0. 88
0. 87
1.47
1.39
1. 31
1. 32
1.73
1.74
1.66
1.59
1. 51
1. 30
2.66
2.49
2.41
2. 36
2.70
2.86
0.88
0.92
3.05
3.85
2. 15
2. 22
2.30
2.05
2.32
2.46
1.28
1. 14
1.62
1.61
Z. 07
2.37
NO.
Obs.
2515
2277
717
121(i
1325
1362
1838
1712
Zllh
1725
2348
2027
1103
696
1871
1815
2230
1414
1140
2431
1457
1546
2113
1997
2884
2560
2618
2053
2793
1804
1522
1961
1403
1252
1625
1705
1322
1381
1903
1799
1181
1610
2973
2809
1883
1349
1694
2205
2425
1859
2064
2234
1803
1927
1594
1821
763
1640
ppm
Cor r.
2543
2302
720
1221
1353
1 391
1937
18H
2256
1839
2517
2130
1061
669
1835
1768
1875
1175
1168
2492
1457
1535
2098
1983
2509
2179
2599
2039
2843
1836
1511
1947
1350
1204
1585
1686
1288
1345
1890
1786
1136
1549
3006
2839
1827
1309
1712
2229
2333
1781
2064
2234
1498
1561
1564
1841
749
1640
Uml
N,..
d
10
1 1
12
1 S
1"
22
23
24
27
39
46
47
48
56
67
69
70
73
84
96
99
101
104
1 10
112
144
150
151
-------
TABLE D-38. EMISSION RESULTS FOR SURVEILLANCE FLEET VEHICLES REQUIRING TIMING OR IDLE
SPEED ADJUSTMENTS FTP USING CONTINUOUS NDIR - TWELVE MONTHS INSPECTION
Emission Results
Unit
No.
2
4
17
22
23
47
56
58
59
64
66
83
84
87
96
99
103
106
121
122
129
135
137
151
Date
Tested
1-25-72
1-26-72
2-3-72
2-7 72
2-8-72
3-5-72
3-5-72
3-4-72
3-4-72
3-1-72
3-18-72
3-22-72
3-21-72
4-9-72
3-31-72
-4-3-72
4-6-72
3-9-72
5-6-72
5-7-72
5-21-72
4-19-72
4-25-72
5-3-72
Truck
No.
PO40999
PO41000
55
5131
5132
312
313
316
317
582
251
239
240
M-77
4T1
2T9
34
2119
98
101
1088
1345
1365
1ST
Source
P. 0. D.
P. 0. D.
N. S. S.D.
C.P. S. B.
C. P. S. B.
C. W.B.
C. W. B.
C. W. B.
C. W. B.
Red Arrow
C. W. B.
Herder
Herder
State Hosp.
B. C.R. D.
B. C.R.D.
Southern
C. P. R.
Facs
Facs
Lone Star
S. A. P. W.
S. A. P. W.
Southern
Vehicle
Year
1970
1970
1970
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1971
1971
1971
1971
Make
Dodge
Dodge
IHC
IHC
IHC
IHC
IHC
IHC
IHC
Dodge
Dodge
Ford
Ford
Dodge
Ford
Ford
GMC
Ford
GMC
GMC
Ford
IHC
IHC
Chevrolet
Engine
CID
318
318
345
392
392
304
304
304
304
318
318
361
361
225
240
330
427
360
292
292
391
392
392
427
Cyl.
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
V-8
6
6
V-8
V-8
V-8
6
6
V-8
V-8
V-8
V-8
Trans. GVW Vehicle Test
Speeds* Ibs Type Miles
3 auto 10, 000 Van 9,659
Timing 5° early
3 auto 10,000 Van 12,828
Timing 10° early
5 25, 500 School Bus 28, 088
Idle speed 175 rpm high
3 auto 25, 500 Line 9, 139
Timing 10° early
3 auto 25,500 Line 7,710
Timing 18° early
4 19,700 Service 18,271
Timing 5° early
4 19,700 Service 11,146
Timing 10° early
4 19,700 Service 4,486
Timing 7° late
4 19,700 Service 7,469
Timing 10° late
4 24,000 Freight 22,211
Timing 11° late
3 auto 7,500 Meter 10,821
Timing 5° late
5 22,000 Freight 14,450
Timing 5° late
5 22,000 Freight 21,901
Timing 9 ° early
3 auto 10,000 Grounds 3,468
Timing 5° early
3 7,500 Maint. 17,218
Timing 12° late, Idle speed 150 rpm low
4 21,000 Water Tr. 66,227
Timing t> ° early
5 32, 500 Moving 46, 976
Timing 6° early, Idle speed 150 rpm high
4 8, 300 Maint. 3, 756
Timing 8° late
4 10,000 Delivery 18,349
Timing 17° early
4 10,000 Delivery 18,550
Timing 7° early
5 27,500 Delivery 14,034
Timing 6° late
6 auto 34,000 Garbage 11,691
Idle speed 400 rpm high
6 auto 34,000 Garbage 11,234
Timing 9° early
5 32, 500 Moving 24, 024
Timing 7° late
Condition
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
HC,
ppm
252
247
350
296
194
173
215
163
201
139
242
211
225
191
166
216
244
197
259
651
212
226
329
341
586
382
230
194
211
311
2093
1959
231
229
250
154
208
132
224
198
340
305
270
345
321
342
232
249
CO,
%
1. 51
1.62
2.21
2.29
1. 12
1. 12
2. 63
2.58
1.65
1.62
0.94
0. 88
1.22
1. 16
1. 15
1. 09
1. 09
1.03
1.68
1. 62
1.97
1.88
1.57
1. 53
2.48
2. 56
2. 06
1. 96
1.82
1.89
0. 81
0.82
2.85
2.84
1.97
2. 10
0. 51
0.46
1.96
1. 98
2. 67
2.49
2. 29
2. 71
2. 68
3. 09
1. 82
1. 67
NO,
Obs.
2019
1538
1481
1070
2289
2308
1451
937
1873
372
2950
2848
2708
2497
1492
2526
2537
1803
1641
2379
1440
1909
1120
1258
2364
1924
2334
2334
1088
1929
2780
1089
591
665
1853
1384
3681
2524
2744
2099
1694
1979
1791
1577
1798
1284
1448
2043
ppm
Corr.
1648
1278
1497
1089
1648
1662
1114
754
1528
317
2510
2424
2223
2050
1482
2508
2387
1697
1682
2438
1218
1615
1054
1184
2090
1701
2208
2208
870
1543
2727
1014
591
665
1629
1217
3696
2533
2793
2137
1700
1986
1865
1642
1662
1187
1370
1933
Unit
No.
2
4
17
22
23
47
56
58
59
64
66
83
84
87
96
99
103
106
121
122
129
135
137
151
*Hi-lo means two-speed rear axle.
-------
TABLE D-39. EMISSION RESULTS FOR VEHICLES REQUIRING TIMING OR IDLE SPEED ADJUSTMENTS
HEAVY-DUTY GASOLINE SURVEILLANCE - EIGHTEEN MONTHS INSPECTION
Emission Results
Unit
No.
3
7
f^
16
19
2)
23
24
28
39
46
58
59
60
63
64
84
88
Date
Tested
7-26-72
7-31-72
8-1 -72
8-30-72
8-29-72
10-4-72
8-4-72
8-9-72
8-16-72
9-7-72
8-22-72
9-9-72
9-9-72
9-30-72
9-16-72
9-14-72
10-4-72
10-14-72
Truck
No.
P04Q997
349
350
53
54
72218
5132
5136
6616
8810
4950
316
317
253
392
582
240
M-87
Source
P. O. D.
ABC
ABC
NSSD
NSSD
Hertz
CPSB
CPSB
CPSB
CPSB
CPSB
CWB
CWB
CWB
CWB
Red Arrow
Herder
State Hosp.
Vehicle
Year
1970
1970
1970
1970
1970
1970
1970
1971
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
Make
Dodge
White
White
IHC
IHC
Ford
IHC
IHC
Ford
Ford
IHC
IHC
IHC
Chev
Chev
Dodge
Ford
Dodge
Engine
CID
318
400
400
345
345
240
392
392
300
300
304
304
304
307
366
318
361
225
Cyl.
V8
6
6
V8
V8
6
V8
V8
6
6
V8
V8
V8
V8
V8
V8
V8
6
Trans. GVW, Vehicle
Speeds* Ibs Type
3-auto 10,000 Van
Timing 6° early
5 Hi-Lo 30,000 Tractor
Idle speed 150 rpm high
5 Hi-Lo 30,000 Tractor
Timing 26° early
5 25, 500 School Bus
Timing 18° early
5 22,000 School Bus
Idle speed 1 50 rpm high
3-auto 7,500 Pickup
Timing 20° early
3-auto 25, 500 Line
Timing 8" early
3-auto 25,500 Line
Timing 4* late
4 10,000 Service
Timing 4° late
4 16,000 Service
Idle speed 175 rpm high
4 19,700 Bucket
Timing 4° early
4 19,700 Service
Idle speed 125 rpm high
4 19,700 Service
Idle speed 150 rpm high
4 7, 500 Service
Timing 4° late
5 32,000 Crane
Idle speed 150 rpm high
4 24, 000 Freight
Idle speed 125 rpm high
5 22, 000 Freight
Timing 12° early
3-auto 7, 500 Service
Timing 6° late
Test
Mileage
15, 745
27, 573
28, 31 1
40. 536
29,460
30,968
11, 100
14, 548
14, 386
27, 812
38,930
6, 547
10,870
9, 157
3,329
31,003
29,403
11, 193
Test
Condition
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
As Received
Adjusted
HC,
ppm
221
260
228
153
298
274
439
399
290
289
304
317
198
180
296
327
181
194
283
239
269
260
193
195
254
253
3906
3869
139
148
485
469
566
414
204
191
CO,
%
1.65
1. 83
3.80
3. 78
2. 74
2.62
2.07
1.95
1.51
1. 57
2.45
2. 22
1.39
1. 52
2.22
2.26
0.49
0.52
3.09
3.02
1.85
1.81
1. 13
1.09
1. 14
1. 12
1.92
1.96
1.79
1.62
1. 53
1.59
2.46
2.40
1.81
1.77
NO. ppm
Obs.
B47
1028
1101
1090
2393
1674
2779
1434
2455
2494
1827
1775
1557
1304
1486
1646
2535
2916
1844
1850
2032
1860
1761
1775
2699
2690
923
1043
701
774
1986
2141
2258
2044
1352
1619
Corr.
822
i)i)7
10'IZ
1082
2321
1624
2827
145')
2481
2521
1772
1722
1528
1275
1486
1646
2545
2928
1837
1844
1861
1704
1780
1794
2728
2719
820
927
732
809
1985
2059
2125
1923
1337
1601
Unit
No.
3
7
9
16
19
21
23
24
28
39
46
58
59
60
63
64
84
88'
*Hi-lo means two-speed rear axle.
-------
TABLE D-40. EMISSION RESULTS FOR VEHICLES REQUIRING TIMING OR IDLE SPEED ADJUSTMENTS
HEAVY-DUTY GASOLINE SURVEILLANCE - TWENTY-FOUR MONTHS INSPECTION
Emission Results
Jnit Date Truck
No. Tested No. Source
20
46
145
148
152
3-12-73 72341 Hertz
3.5.73 4950 CPSB
5-7-73 3
6-25-73 2
5-7-73 6
JFC
JFC
JFC
Vehicle
Year
1970
1970
1971
1971
1971
Make
Ford
IHC
Chev
Chev
Chev
Engine
CID
300
304
350
350
350
CyJ
6
V8
V8
V8
V8
Trans. GVW, Vehicle
Cyl. Speeds* Ibs Type
3-auto 10,000 Stake
Timing 17° early
4 19,700 Bucket
Timing 11° early
4 24,000 Delivery
Timing 9° early
4 24,000 Delivery
Timing 4° early
4 24,000 Delivery
Timing 10° early
Test
Mileage
24, 342
51372
38190
5D560
39976
Test
Condition
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
As received
Adjusted
HC,
ppm
161
152
300
283
360
272
344
303
322
2 10
CO
%
1.13
0.85
2.26
2.20
1.52
1.76
1.49
2. -18
1.94
1.78
NO,
Obs.
2613
1648
2394
2164
2575
1517
1323
927
2646
1393
ppm
Corr.
2762
1742
2164
2225
2585
1523
1351
899
2657
1398
Unit
No.
20
46
145
148
152
* Hi-lo means two-speed rear axle.
-------
TABLE D-41. EMISSION RESULTS FOR VEHICLES REQUIRING TIMING OR IDLE SPEED ADJUSTMENTS
HEAVY -DUTY GASOLINE SURVEILLANCE - THIRTY MONTHS INSPECTION
Emission Results
Urn'
NCI.
8
9
Date
Tested
9-11-73
9-17-73
Truck
No.
351
350
Source
ABC
ABC
Vehicle
No.
1970
1970
Engine
Make CID
White 400
White 400
Cyl.
6
6
Trans. GVW,
Speeds* Ibs
5 hi-Io 30.000
Timing 12° early
5 hi-lo 30,000
Timing 12° early
Vehicle
Type
Tractor
Tractor
Test
Mileage
45548
53926
Test
Condition
As received
Adjusted
As received
Adjusted
HC, CO
ppm %
303 3.11
249 2.63
352 4.42
265 4.41
NO, ppm Unii
Obs. Corr. No.
1920 1955 8
1534 1551
1343 1317 9
1161 1126
Hi-lo means two-flpeed rear axle.
-------
TABLE D-42.
PERCENT CHANGE IN EMMISSIONS FROM TIMING OR IDLE SPEED ADJUSTMENTS
FOUR MONTHS INSPECTION
ROUND NO. 2
o
I
m
HYDROCARBONS PPM
TRUCK A3 IN DIFF. PCT.
NUMBER RECEIVED SPEC DIFF.
1*
22
23
2*
25
*0
*3
*7
*1
50
57
58
bO
bl
b2
7*
80
82
12
13
1b
17
18
11
100
101
102
103
lOb
111
113
118
122
135
13*
231
288
3b5
255
2bl
212
210
223
2b*
2*7
215
2*0
2*5
112
IBb
301
28*
150
280
218
327
3**
300
388
3*1
351
212
23b
27*
2*b
321
338
317
322
221
2*1
250
21b
238
2*1
187
21b
210
20b
22b
28b
115
2*b
2bl
177
2fab
2b?
158
275
210
2*8
237
2fal
252
30*
311 .
2b1
27*
2faS
2*1
28*
313
315
32*
171
2 .8
-38 -13.2
-bl -18.1
-17 -fa. 7
-12 -*.b
-25 -11.8
b 2.1
-13 -5.8
-58 -22.0
-21 -8.5
-1 -3.1
-*S -18.7
1 .t
bl 35.1
-1 -*.B
-*3 -13.1
-17 -b.O
8 5.3
-5 -1.8
-8 -2.7
-71 -2*. 2
-107 -31.1
-31 -13.0
-13b -35.1
-*5 -12.1
-*0 -11.1
-23 -7.1
38 lfa.1
-fa -2.2
-S -2.0
-*5 -13.7
-25 -7.*
-2 -.b
2 .b
-50 -21.8
AVERAGE PERCENT CHANGE HC
CO
NO
CORR NO
CARBON MONOXIDE
AS IN DIFF.
RECEIVED SPEC
1.53
2.77
2.27
2.08
2.38
.31
.70
1.27
l.*5
2.bO
1 .*!
1.30
3.31
2.5b
,7b
1.71
2.18
.bS
1.73
2.23
1.13
1.5*
.52
.81
.11
1.22
2.11
2.18
2.21
2.*1
3. fab
1.12
1.11
2.05
b.5b
-7.5
.1
-B.b
-8.1
1.53
2.71
2.11
2.10
2.37
.21
.7*
1.25
1.**
2.55
1.5*
1.27
3.33
3.37
,b3
l.b?
2.15
.bS
1.1*
2.32
.11
1.53
.52
.80
.10
1.31
1.8*
2.11
2.33
2.28
3.*n
1.11
2.11
2.2b
b.51
0.00
-.Ob
-.08
.02
-.01
-.02
.0*
-.02
-.01
-,05
.13
-.03
-.Ob
.81
-.13
-.0*
-.03
0.00
.21
.01
-.1*
-.01
0.00
-.01
-.ni
.01
-.35
-.07
.0*
-.13
-.2b
.07
.12
.21
.03
PCT.
PCT.
DIFF.
0.0
-2.2
-3.5
1.0
-.*
-b.5
5.7
-l.b
-.7
-1.1
1.2
-2.3
-1.8
31. b
-17.1
-2.3
-1.0
0.0
12.1
*.o
-12.*
-.fa
0.0
-1.2
-1.1
7.*
-lh.0
-3.2
1.7
-5.*
-7.1
3. fa
b.O
10.2
.5
NITRIC OXIDE PPM
AS IN DIFF. PCT.
RECEIVED SPEC DIFF.
1*50
1137
lfa*2
1*13
871
33*7
2572
2155
2311
17*3
2517
2332
1531
1111
108*
Ifa21
233b
2521
1850
Ib80
1703
18b5
3001
3331
2738
?73*
2172
1381
1517
171?
120
180*
2**S
1252
*3*
1*31
b51
871
1507
7*7
2770
322*
Ibl3
llfab
1*57
2333
1501
1172
l*0b
10*1
1*81
Ibll
21*5
112*
1837
233b
llbb
2517
2838
2532
2215
1873
1501
Ibll
1777
fa28
1718
1810
12fal
*12
-11 -.8
-*8fa -*2.7
-771 -*7.0
1* .1
-132 -15.0
-577 -17.2
bS2 25.3
-5*2 -25.2
-353 -15.2
-28b -lb.*
-18* -7.3
-823 -35.3
-3b7 -23.8
207 17.3
-*3 -*.0
-1*0 -8.b
-b*S -27. b.
-37b -1*.1
7* *.0
157 1.3
b33 37.2
101 S.*
-*12 -lb.*
-*13 -1*.8
-20fa -7.5
-*31 -lb.1
-211 -13.8
112 8.1
22 1.*
-20 -1.1
-212 -31.7
-fa -.3
-555 -22.7
Q "3
' »
58 13.*
CORR. NO
AS IN
RECEIVED SPEC
1*15
1157
170*
1*13
12*
3013
23bb
211*
2328
17*1
2b83
2*51
Ibl?
12bO
ll*b
Ibll
250*
2511
1850
lb*8
173*
1811
30b3
3BbB
2b8b
2783
2131
1381
ISb?
1881
155
1770
2*1b
131b
*ei
1*8*
bb3
80*
1507
785
2551
21bb
1582
117*
I*fa3
2*87
ISBb
1232
1*78
1100
15*b
1813
2111
1887
1802
2378
2001
25fa2
278*
2*8*
233fa
1837
1501
1588
18b8
bS2
1758
1130
1325
SOb
PPM
DIFF. PCT,
DIFF.
-11 -.7
-*1* -*2.7
-SOO -52.8
1* .1
-131 -15.0
-53* -17.3
bOO 25.*
-532 -25.2
-35* -15.2
-28b -Ifa.*
-lib -7.3
-8bS -35.3
-385 -23.8
218 17.3
-*b -*.0
-1*5 -a.b
-bll -27. b
-*88 -18.8
37 2.0
15* 1.3
b** 37.1
102 S.*
-501 -lb.*
-*8* -1*.8
-202 -7.5
-**7 -lfa.1
-21* -13.8
112 8.1
21 1.3
-21 -1.1
-303 -31.7
-12 -.7
-5fab -22.7
1 .7
77 17.1
-------
TABLE D-43.
PERCENT CHANGE IN EMISSIONS FROM TIMING OR IDLE SPEED ADJUSTMENTS
EIGHT MONTHS INSPECTION
ROUND NCl. 3
TRUCK
NUMBER
b
10
11
12
IS
11
22
23
2*
27
31
*fa
*7
*B
Sb
b?
bl
70
73
8*
Ib
11
101
10*
lin
112
1**
ISO
151
HYDROCARBONS PPM
AS IN DIFF. PCT.
RECEIVED SPEC DIFF.
30fa
151
21*
231
253
113
313
315
2bl
120
251
118
211
2b7
2*1
221
213
2*3
287
311
281
218
3b7
20*
*2b
207
233
307
1838
111
15*
33b
201
27*
227
181
271
1*1
183
2*7
28*
200
2SO
Ib3
228
17b
222
277
315
3*7
2b*
3*1
200
BbO
220
3Sb
211
2bO
-107 -35.0
3 2.0
*3 1*.3
-30 -13.0
21 8.3
3* 17. b
-2* -11.3
-3b -11.*
-112 -*2.1
b3 52. S
-* -l.b
8b *3.*
-11 -8.7
-17 -b.*
-Bb -3*. 5
7 3.2
-37 -17.*
-21 -a.b
-10 -3.5
* 1.3
SB 20.1
-3* -11.*
-2b -7.1
-* -2.0
*3» 101.1
13 b.3
23 1.1
-Ib -5.2
-1578 -85.1
AVERAGE PERCENT CHANGE HC
CO
NO
CORR NO
CARBON MONOXIDE
AS IN OIFF.
RECEIVED SPEC
I.b7
*.23
l.faB
1.31
1.3*
1.52
2.1*
2.2b
1.57
.Sh
3.52
1.75
.88
l.*7
1.31
1.73
l.bb
1.51
2.bb
2.*1
2.70
.88
3.05
2.15
2.30
2.32
1.28
I.b2
2.07
-.1
-l.S
5.8
5.8
l.*2
*.OB
l.bS
1.15
1.23
1.3b
2.81
1.8B
l.bl
.bB
3.b3
I.b7
.87
1.31
1.32
1.7*
1.51
1.30
2.*1
2.3b
2.8b
.12
3.85
a. 22
2.05
2.*b
1.1*
l.bl
a. 37
-.25
-.15
-.03
-.Ib
-.11
-.Ib
-.13
-.38
.n*
.12
.11
-.08
-.01
-.08
.01
.01
-.07
-.21
-.17
-.05
.Ib
.0*
.80
.07
-.25
.1*
.1*
-.01
.30
PCT.
PCT.
OIFF.
-15.0
-3.5
-l.B
-13.3
-8.2
-10.5
-*.*
-Ib.B
2.5
21.*
3.1
-*.b
-1.1
-5.*
.B
.fa
-*.2
-13.1
-b.*
-2.1
5.1
*.S
2b.2
3.3
-10.1
b.O
-10.1
-.b
1*.S
NITRIC OXIDE PPM
AS IN DIFF.
RECEIVED SPEC
2S1S
717
1325
1838
211b
23*B
1103
1871
2230
11*0
1*57
2113
288*
2falB
3713
1523
1*03
lb2S
1322
1103
1181
2173
1883
Ibl*
2*25
20b*
1803
151*
7b3
3277
121b
13b2
1712
1725
2027
bib
IBIS
1*1*
2*31
15*fa
1117
2SbO
2053
180*
llbl
12SS
1705
1381
1711
IfalO
2801
13*1
2205
1851
323*
1127
1831
lb*0
-238
*11
37
-12b
-311
-321
-*07
-Sb
-Bib
1211
as
-lib
-32*
-SbS
-181
*3S
-151
80
51
-10*
*21
-Ib*
-S3*
511
-Sfab
170
12*
227
877
PCT.
DIFF.
-l.S
bl.b
2.8
-b.l
-18.5
-13.7
-3b.1
-3.U
-3b.b
113.2
b.l
-5.5
-11.2
-21. b
-35.*
28. 8
-10.8
*.1
*.5
-5.5
3b.3
-5.5
-28.*
30.2
-23.3
B.2
b.l
1*.2
11*. 1
COHH. NO
AS IN
WECE1VEU SPEC
25*3
720
1353
1137
225b
2517
IDfal
1B35
1875
llbB
1*57
201B
2501
2511
28*3
1511
1350
1SB3
1288
1B10
113b
300b
1827
1712
2333
20b*
1*18
ISb*
7*1
2302
1221
1311
181*
1B31
2130
bfal
17bB
1175
2*12
1535
1183
2171
2031
183b
11*7
120*
IbBfa
13*5
178b
15*1
2831
1301
222S
1781
223*
ISbl
18*1
lb*0
PPM
Ol^F. PLl.
DIFF.
-2*1 -1.5
SOI bl.b
38 2.8
-123 -b.*
-*17 -18.5
-3B7 -15.*
-312 -3b.1
-b7 -3.7
-700 -37.3
132* 113.*
78 5.*
-115 -5.5
-330 -13.2
-SbO -21.5
-1007 -35.*
*3b 28.1
-l*b -10.8
103 b.5
57 *.*
-10* -S.S
*13 3b.*
-Ib7 -S.b
-518 -28.*
517 30.2
-552 -23.7
170 8.2
b3 *.3
277 17.7
811 111.0
-------
TABLE D-44. PERCENT CHANGE IN SURVEILLANCE FLEET CONTINUOUS NDIR EMISSIONS
FROM TIMING OR IDLE SPEED ADJUSTMENTS - TWELVE MONTHS INSPECTION
ROUND NO. 1
HYDROCARBONS PPM
TRUCK AS IN DIFF. PCT.
NUMBER RECEIVED SPEC DIFF.
a
*
17
2?
23
*7
Sb
58
51
b*
bb
S3
8*
87
1b
11
103
lOb
iai
122
lai
135
137
151
asa
350
111
ais
aoi
2*2
eas
ibb
a**
251
aia
321
58b
830
Sll
2013
331
250
aos
aa*
3*0
S70
321
232
2*7
Sib
173
Ib3
131
an
HI
aib
117
bSl
aab
3*1
382
11*
311
1151
aai
IS*
isa
11B
305
3*5
s*a
2*1
-s -a.o
-5* -IS. 4
-ai -10.8
-sa -at. a
-b8 -30.8
-si -ia.8
-3t -15.1
SO 30.1
-*7 -11.3
312 151.*
1* fa.b
ia 3.b
-JO* -3*. 8
-3b -15.7
100 *7.*
-13* -b.*
-a -.i
-Sfc -38.*
-7b -3b.5
-ab -11. b
-35 -10.3
75 37.8
ai b.s
17 7.3
AVERAGE PERCENT CHANGE HC
CO
NO
CORR NO
CARBON MONOXIDE PCI.
AS IN DIFF. PCT.
RECEIVED SPEC DIFF.
1.51
a.ai
1.12
a.b3
l.bS
.1*
i.aa
1.15
1.01
i.ba
1.17
1.57
2.*8
a. ob
1.82
.81
a. 85
1.17
.51
Lib
a.b?
a.ai
a.ba
i.aa
-.a
-.a
-t. a
-».o
i.ba
2.21
1.12
2.58
I.b2
.88
1. Ib
1.01
1.Q3
i.faa
1.8S
1.53
2.5b
Lib
1.B1
.82
a. B*
2.10
.fb
1.18
a. ti
a. 71
3.01
I.b7
.11
.08
o.no
-.05
-.03
-.Ob
-.Ob
-.Ob
-.Hb
-.Ob
-.01
-.ot
.08
-.10
.07
.01
-.ni
.13
-.ns
.02
-.18
.*a
.ti
-.15
7.3
3.b
0.0
-1.1
-1.8
-b.t
-».<
-s. a
-5.5
-3.b
-t.b
-a.s
3.?
-i».i
3.8
1.2
-.t
b.b
-1.8
1.0
-b.7
18.3
15.3
-s. a
NITRIC OXIDE PPM
AS IN DIFF.
RECEIVED SPKC
aon
1481
228S
1*51
1873
2150
a?08
itia
a537
lb*l
1**0
nao
R3b*
333*
1.088
3780
511
1853
3b81
a?**
Ibl*
1711
1718
1**8
1538
1070
?3t)8
137
37g
sets
?*17
asab
1803
2371
1101
less
112t
233*
1121
1087
bbS
138*
252*
2011
1171
1577
128*
20*3
-*81
-*11
IS
-51*
-1501
-102
-211
103*
-73*
738
*b1
138
-**0
0
8*1
-Ib13
7*
-*b1
-1157
-b*5
285
-21*
-51*
515
PCT.
DIFF.
-23.8
-a?. 8
.8
-35.*
-80.1
-3.5
-7.8
bl.3
-?R. 1
*5.0
32. b
12.3
-18. b
0.0
77.3
-bO.1
ia.s
-as. s
-31.*
-a3.s
lb.8
-11.1
-as.b
*i.i
C fl K R . NO
AS IN
RECEIVED SPEC
lb*8
1*17
lb*8
111*
1528
asm
aaas
i*sa
2387
ibaa
leie
105*
anio
aaos
B70
a?a?
511
ibai
3b1b
3713
1700
ISbS
ibba
1370
ia?8
1081
IbbS
75*
317
2*2*
2U5D
2508
1K97
5*38
IblS
118*
1701
2208
15*3
101*
bb5
1217
2533
2137
118b
lb*a
1187
1133
pp>i
DIFF.
-370
-*D8
1*
-3bO
-1211
-8b
-173
inab
-blO
75b
31?
130
-381
0
b?3
-1713
7*
-*12
-llfaS
-b5b
28b
-223
-*75
5b3
PCT.
DIFF.
-2H.5
-27.3
.8
-32.3
-71.3
-3.*
-7.8
bi.a
-28.1
**.1
32. b
ia.3
-18. b
0.0
77.*
-ba.B
ia.s
-as. 3
-31.5
-23.5
lb.8
-12.0
-28. b
*1.1
-------
TABLE D-45.
PERCENT CHANGE IN EMISSIONS FROM TIMING OR IDLE SPEED ADJUSTMENTS
EIGHTEEN MONTHS INSPECTION
ROUND NO. 5
HYDROCARBONS PPM
TRUCK A3 IN DIFF. PCT.
NUMBER RECEIVED SPEC DIFF.
3
7
*
Ib
11
Si
zj
?H
28
3*
SB
54
bO
b3
b*
1*
B8
221
228
248
H31
240
30H
148
24b
181
283
Bbl
113
2SH
340b
134
HPS
Sbb
20*
2faO
153
27H
344
289
317
1BO
327
IS*
234
2bO
145
253
3Bb4
1»B
Hb4
H1H
141
34 17. b
-75 -32.4
-2H -B.I
-HO -4.1
-1 -.3
13 H.3
-IB -4.1
31 10.5
13 7.2
-HH -15.5
-4 -3.3
? 1.0
-1 -.H
-37 -.4
4 b.S
-Ib -3.3
-152 -Kb. 4
-13 -b.H
AVERAGE PERCENT CHANGE HC
CO
NO
CORR NO
CARBON MONOXIDE PCT.
AS IN DIFF. PCT.
RECEIVED SPEC DIFF.
l.bS
3. 80
2.7*
2.07
1.S1
2.HS
1.34
2.22
.H4
3.04
l.BS
1.13
1.1H
1.42
1.74
1.53
2.Hb
1.B1
-3.B
-.3
-.4
-1.1
1.83
3. 78
2.b2
1.45
1.57
2.22
1.S2
2.2b
.52
3.02
1.11
1.04
1.12
1.4b
l.bZ
1.54
2.»0
1.77
.18
-.02
-.12
-.12
.Ob
-.23
.13
.OH
.03
-.07
-.OH
-.OH
-.02
.OH
-.17
.Ob
-.Ob
-.OH
10.4
-.5
-».»
-S.8
H.O
-4.H
4.H
1.8
b.l
-a. 3
-8.2
-3.5
-1.1
2.1
-4.5
J.^
-«.»
-2.2
NITRIC OXIDE PPM
A3 IN DIFF.
RECEIVED SPEC
8H7
1101
2343
2774
2HSS
1827
1557
IHBb
2S3S
1BHH
2032
17bl
2b44
423
701
148b
2258
1352
102B
1040
lb7H
1H3H
2»4»
1775
130»
IbHb
841b
1850
mo
1775
2b40
10*3
77*
21*1
20HH
Ifal4
181
-11
-714
-13HS
34
-52
-253
IbO
381
b
-17»
1»
-4
120
7J
155
-Zl»
2b7
PCT.
DIFF.
81. H
-1.0
-30.0
-H8.H
l.b
-2.8
-lb.2
10.8
15.0
.3
-1.5
.8
-,s
13.0
10. »
7.8
-s.s
11.7
CORR. NO
A3 IN
RECEIVED SPEC
822
1042
2321
2827
2H81
177Z
1528
IHBb
2SHS
1837
IBbl
1780
2728
820
731
1485
2125
1337
417
1082
lb!H
1H54
1121
1728
1275
Ibtb
2428
18HH
170H
174H
2711
427
104
2054
1123
IbOl
PPM
DIFF.
175
-10
-b17
-mi
HO
-50
-ess
IbO
383
7
-157
It
-1
107
77
7»
-aoe
2bH
PCT.
DIFf.
21.
-.
' -JO.
-Hi.
1.
-2.
-Ib.
10.
15.
*
-.
t)
13.0
10.5
J.7
-1.5
14.7
-------
TABLE D-46.
PERCENT CHANGE IN EMISSIONS FROM TIMING OR IDLE SPEED ADJUSTMENTS
TWENTY-FOUR MONTHS INSPECTION
ROUND NO. b
HYDROCARBONS PPM
TRUCK AS IN DIFF. PCT.
NUMBER RECEIVED SPEC DIFF.
20
*b
1*5
1*8
152
Ibl
30U
3bO
3**
322
152
283
272
303
aio
-9 -S.b
-17 -5.7
-88 -2*.*
-*1 -11.9
-112 -3*. 8
AVERAGE PERCENT CHANGE HC
CO
NO
CORR NO
CARBON MONOXIDE PCT.
AS IN DIFF. PCT.
RECEIVED SPEC DIFF.
1.13
2.2b
1.52
l.*9
1.9*
-lb.5
5.3
-33.0
-33.7
.85 -.28 -2*.B
2.20 -.Ob -2.7
1.7b .2* 15.8
2.18 .b9 *b.3
1.78 -,lfa -8.2
NITRIC OXIDE PPM
AS IN DIFF. PCT.
RECEIVED SPEC DIFF.
2bl3
239*
2S7S
1323
2b*b
lb*8 -9bS -3fa.9
21fa* -230 -9. fa
1517 -1058 -*1.1
927 -39b -29.9
1393 -1253 -*7.*
CORR. NO
AS IN
RECEIVED SPEC
27b2
2*bl
2585
1351
2b57
17*2
2225
1523
899
1398
PPM
DIFF.
-1020
-23b
-10b2
-*52
-1S59
PCT.
DIFF.
-3b.9
-9.b
-*1.1
-33.5
-*7.*
-------
TABLE D-47.
PERCENT CHANGE IN EMISSIONS FROM TIMING OR IDLE SPEED ADJUSTMENTS
THIRTY MONTHS INSPECTION
a
a
ROUND NL>, 7
HYDROCARBONS PPM
{RUCK AS IN llIFf-. PCT.
NUMBER RECEIVED sptc OIFF.
e
q
303 its -S» -17.8
352 2bS -87 -2V. 7
AVERAGE PERCENT CHANGE HC
CO
MO
CORR NO
CARBON MONOXIDE PCT. NITRIC OXIDE PPM
A3 IN OIFF, PCT. AS IN DIFF. PCT.
RECEIVED SPEC DIFF. RECEIVED SPEC DIFF.
3.11 2.b3 -,»B -IS.* 1S20 1S3» -38b -ZO.l
».»2 ».»! -.01 -,i 13*3 lib! -182 -13. b
-21.3
-7.8
-lb.8
-17. b
CORR. NO PPM
AS IN OIFF. PCT.
RECEIVED SPEC DIFF.
1955 1551 -HOt -20.7
1317 112b -111 -1H.S
-------
-30-1
oo
to
^
u
3
0)
JD
20 -
1 I
0 100
1
20C
)
30
0
| 1 f "'"I
II 1 II 1
400 500 600
Hydrocarbon Concentration - ppm as n-hexane (NDIR)
30 -
^£t
O
^
^ 20 -
0
0)
n
Si n
10 -
z;
n
1
1
1
1
30 "
03
^
Q
S 20 -
H
m
O _
(U
f-f i n .
c u
. 1 1 1 1 .
T 1 1 1 1 f ^ o
I 1 1 1 I
1
1
1
l
1
1 |
1 1 1
12345
Carbon Monoxide Concentration - Percent
0 1000 2000 3000 4000
Corrected Nitric Oxide Concentration - ppm
FIGURE D-l.
FREQUENCY DISTRIBUTION OF EXHAUST EMISSION LEVELS
FOR FIRST ROUND INSPECTIONS (152 TRUCKS)
-------
XI
£
3
2
30 -
2 20
1
500
0 100 200 300 400 500 600
Hydrocarbon Concentration - pprn as n-hexane (NDIR)
Number of Trucks
> N) OJ
> 0 O O
i i i i i i i
u i
i i
1 I i i r
11 1 1 1 1
1.0 2. 0 3.0 4. 0 5.06.0
Carbon Monoxide Concentration - Percent
7. 0
Number of Trucks
- NJ L
3 O 0 C
1 1 1 1 1
1
u 1 1 1 1 1 1 1 1
0 1000 2000 3000 4000
Corrected Nitric Oxide Concentration - ppm
FIGURE D-2. FREQUENCY DISTRIBUTION OF EXHAUST EMISSION LEVELS
FOR SECOND ROUND INSPECTIONS (148 TRUCKS)
-------
30 -j
25 _
CO
^ 20 -
H
v, 15 -
42
£
10 -
5 -
0
1
1
0
/\r-r
100 200 300 400 500 800 900
Hydrocarbon Concentration - ppm as n-hexane (NDIR)
0 35 -i
o A
jU -
25 -
CO
^
<_ 15 -
o
^ 10 -
2 5 -
-
T J
1
35-
25 -
CO
o
3 20 -
.
^ 15 -
0)
1 10-
3
D -
1 i i i i -A tm. o
1 1 1 1 l-j 1 \. r J^S 1^ I J- u 1
,
i
i
, ,
i i
0 llO 2.0 30 4.0 5. 0
Carbon Monoxide Concentration - Percent
12. 0
0 1000 2000 3000 4000
Corrected Nitric Oxide Concentrations -
FIGURE D-3. FREQUENCY DISTRIBUTION OF EXHAUST EMISSION LEVELS
FOR THIRD ROUND INSPECTIONS Q48
-------
D
i
CO
u
H
"o
30 1
20 -
xi 10 -
U
Number of Trucks
^ ro oj
:> 0 0 O
1 1 1 1 1 1 1
" 1 1
0 100
1 1 1 1 1 1 1 1 A t 1 f ~1
II | 1 1 I 1 1 I K 1 1 1 1 1
200 300 400 500 600 19:00 2000 2100
Hydrocarbon Concentration - ppm as n-hexane (NDIR)
CO
u
H
m
O
JD
s
30-
20-
i
2. 0
1.0 2.0 3.0 4.0 5.0
Carbon Monoxide Concentration - percent
0 1000 2000 3000 4000 5000
Corrected Nitric Oxide Concentration - ppm
FIGURE D-4. FREQUENCY DISTRIBUTION OF EXHAUST EMISSION LEVELS
FOR FOURTH ROUND INSPECTIONS (145 TRUCKS)
-------
O
i
30 -
en
"u 20
3
t->
SH
O
j-i
v
XI
g
s
2
100
i
200
300
i
400
600
700
> 2000
Hydrocarbon Concentration - ppm as n-hexane (NDIR)
30 -
CO
^
o
2 20 -
H
SH
O
M
-------
30 1
X
Ji
u
3
14
H
20
tu
X)
10
100
200
300
400
500
600
700
Hydrocarbon Concentration - ppm as n-hexane (NDIR)
800
900
1000
| 20.
c
«M
SH
JO *" -
£
3
2
0 .
, , , ,
1.0 2.0 3.0 4.0 5.0 6.0
Carbon Monoxide Concentration - percent
7.0
30
20-
10-
0 1000 2000 3000 4000
Corrected Nitric Oxide Concentration-ppm
FIGURE D-6. FREQUENCY DISTRIBUTION OF EXHAUST EMISSION LEVELS
FOR SIXTH ROUND INSPECTIONS (137 TRUCKS)
-------
CO
X
u
3
1-,
H
VM
O
!-i
CD
JD
I
30 H
204
100
200
300
400
500
600
700
800
900" >iooo
Hydrocarbon Concentration - ppm as n-hexane (NDIR)
co 20 -i
X
u
ti
H
"-M
u 10
^,
OJ
J3
^
>7
^ n
i
3
1.0
1
2.
0
3
i i i i i i i
1 1 1
0 4.0 5.0 6.0
30n
20H
>700
0
1000
T
2000
r
3000
4000
Carbon Monoxide Concentration - percent Corrected Nitric Oxide Concentration-ppm
FIGURE D-7. FREQUENCY DISTRIBUTION OF EXHAUST EMISSION LEVELS
FOR SEVENTH ROUND INSPECTIONS (127 TRUCKS)
-------
TJ lOO-i
CO
u ^
3 *-*
H o
o £
c 'I
g w
0) U
CO
^
o
(D C
o W
8CT
60-
» 40-
20-
UB o-
1970 Federal
Standard = 275 ppm
T
T
T
i 1 1 1
100 200 300 400 500 600 700
Hydrocarbons - ppm Hexane
100-
80-
c 'g 60-
o W
" 40-
nJ
u
5 20-
CQ
lOO-i
1970 Federal
Standard = 1.5%
) 1
1
2
1
3
1
4
5
1
6
1
7
Carbon Monoxide - Percent
H § 8(H
60-
0,2 40-
20-
0
Proposed (but not adopted) 1973
Federal Standard - 2000 ppm
1 r
0 1000 2000 3000 4000 5000
Nitric Oxide Concentration - ppm
FIGURE D-b CUMULATIVE FREQUENCY DISTRIBUTION OF EXHAUST
EMISSION LEVELS FOR FIRST ROUND INSPECTIONS (152 TRUCKS)
D-70
-------
3 loo
>
0)
o
H
CO
c S
g w
u
80
60
40 -
20 -
U pq
0
1970 Federal
Standard = 275 ppm
I I
500 600
(U
>
o
H
CD
8 w
0 100 200 300 400
Hydrocarbon Concentration - ppm Hexane
100 -i
80 -
60 -
40 -
20 -
u
1970 Federal
Standard = 1.5%
T
I
2
12345
Carbon Monoxide - Percent
\
6
to
'o
0} "
o W
100 n
80 -
60 -
40 -
20 -
Proposed (but not adopted) 1973
Federal Standard = 2000 ppm
i r i i i i
0 1000 2000 3000 4000 5000 6000
Nitric Oxide - ppm
FIGURE n-9. CUMULATIVE FREQUENCY DISTRIBUTION OF EXHAUST
EMISSION LEVELS FOR THIRD ROUND INSPECTIONS (148 TRUCKS)
D-71
-------
o
3
§1.5
O
"""
""
ffl
U
80-
60-
40-
20-
1970 Federal
Standard = 275 ppm
T
T
0 100 200 300 400 500 600 700
Hydrocarbon Concentration - ppm Hexane
100-
H §
w
n)
0) u
/!
/ ;
/
/i
i i
1 2
1970 Federal
Standard = 1 .
Ill
345
5%
i
6
Carbon Monoxide - Percent
Proposed (but not adopted) 1973
Federal Standard - 2000 ppm
1000 2000
Nitric Oxide - ppm
l r 1
3000 4000 5000
FIGURE D-10. CUMUJLATIVZ FREQUENCY DISTRIBUTION OF EXHAUST
KMISSION LEVELS FOR FOURTH ROUND INSPECTIONS (145 TRUCKS*
D-72
-------
1-3
d C
a> H
o W
-i
o W
60-
40-
20-
Proposed (but not adopted) 1973
Federal Standard = 2000 ppm
riii
1000 2000 3000 4000
Nitric Oxide - ppm
FIGURE D-ll. CUMULATIVE FREQUENCY DISTRIBUTION OF EXHAUST
EMISSION LEVELS FOR SECOND ROUND INSPECTIONS (148 TRUCKS)
D-73
-------
X 41
X. >
O 4>
- J
^ §
£
o W
II T3
DH «
u <*
100
80
60
40 H
20 H
1970 Federal
Standard = 275 ppm
T I I I I I r
100 200 300 400 500 600 700
Hydrocarbon Concentration - ppm Hexane
>2000
» £
M u
(J V
*1
H §
iH
VM "
0 S
4-» -H
£ £
u W
SJ-o
D, 2
n)
«J U
.5|
J2 ^
a >
e 1
100 -,
80 -
60 -
40 -
20 -
CQ
1970 Federal
Standard = 1.5%
12 345 <
Carbon Monoxide - percent
"U «>
° s
c '3
m -
u W
t-o
0, «J
5 -5
1!
U
100 -,
80 -J
60 H
40 H
20 -J
n
CQ 0
Originally Proposed (but not adopted)
1973 Federal Standard = 2000 ppm
0 1000 2000 3000 4000
Nitric Oxide - ppm
FIGURE D-12. Cl MULATIVE FREQUENCY DISTRIBUTION OF EXHAUST EMISSION
LTVELS FOR FIFTH ROUND INSPECTIONS (140 TRUCKS)
D-74
-------
a S
g £
S j
H§
<*J -H
* "
s!
* TJ
4) ^
&u
$-H
51
A) >-H
3 ^
c o
I-3
O CQ
100 _
80 -
60 _
40 -
20 -
0
0
S
970 Federal
Standard = 275 ppm
100 200 300 400 500 600 700 800 900 >1000
Hydrocarbon Concentration - ppm Hexane
«>
>
rj 4)
U CQ
100 _
H
*n
-4-1
0)
u
Ll
0)
>
rt
«
o
'(0
to
'§
w
T3
V
H
T3
J3
80 -
60 -
40 -
20
1970 Federal
Standard = 1.5%
i
6
2 3 4 5
Carbon Monoxide - percent
at I 100 -i
H
<+H
O
PL,
«
>
,2
-------
0)
to >
,* 4)
<i (0
o a
U
t, T3
4) 4)
*
S.3
3 a,
O CO
100 -,
80 -
60 -
40 -
20 -
i
1970 Federal
Standard = 275 ppm
i i r i i i i
300 400 500 600 700 800 900 p-1000
r
100 200
Hydrocarbon Concentration - ppm Hexane
0)
to >
J4 V
3 J
>H C
u-, CO
O «l
1 1
0
t, T)
D u
100 -
80 -
60 -
9 V
U CO
40 -
20 -
I
2
1970 Federal
Standard = 1. 5%
4
1
6
Carbon Monoxide - percent
1
8
1
10
cu
>
- c
* .2
01
O OJ
s w
fci TJ
V D
§ "
^ "O
^ c
C O
U t *
3 D
U CO
FIGURE D-
100
80 -
60 -
40 -
20 -
Proposed (but not adopted) 1973
Federal Standard = 2000 ppm
0 1000 2000 3000 4000
Nitric Oxide - ppm
14. CUMULATIVE FREQUENCY DISTRIBUTION OF EXHAUST EMISSION
LEVELS FOR SEVENTH ROUND INSPECTIONS (127 TRUCKS)
D-76
-------
APPENDIX E
RESULTS OF FOUR INSPECTION ROUNDS
BY INDIVIDUAL TRUCK
Note: 2£ on computer printout sheets indicates multiplier
-------
Q_
Q_
O
LJ
u>
0.00
10.00
f- IGURE E-l.UNIT 001
20.00 30.00 40.00
TOTflL MILEflGE »10S
70 OODOE 10000 LB OVH VflN
E-2
80.00
60.00
318 CIO VB ENGINE
-------
M
o
10-
O in spec test results
LU
(_>
OH
LU
10
o
* o-
-------
o
Xo
o
to-
N
CL.
Q_
Og
in spec test results
LU
0.00
10.00
FIGURE E-3JUNIT 003
20.00 90.00 40.00
TOTflL MILEflGE «103
70 DODGE 10000 LB GVH VflN
E-4
BO.00
60.00
318 CIO V8 ENGINE
-------
M
o
IP'
M
Q_
Q_
O
ct:
Q£
o
°
10
O in spec test results
0.00
10.00
FIGURE E-4.UNIT 004
20.00 30.00 40.00
TOTflL MILEflGE «103
70 DODGE 10000 LB GVKI VRN
50.00
60.00
318 CID V8 ENGINE
E-5
-------
M
o
XD
O
Q_
Q_
0°
a:
o
Uo
o
10
o
10
LU
CJ
Q_
CJ
10
o
10.00
UNIT 005
0-00
FIGURE F
20.00 30.00 40.00
TOTHL MILERGE *103
70 DODGE 10000 LB GVW VflN
E-6
I
50.00
80.00
318 CIO V8 ENGINE
-------
w
CM
Q_
Q_
Og
O
o
10
O in spec test results
w
LU
O
0£
LU
Q_
o
10
o
-§
* o-j
m
X.
LU
o.oo
10.00
SO. 00
80.00
20.00 30.00 40-00
TOTflL MILEflGE *10S
FIGURE E-6.UNIT 006 70 WHITE 30000 LB GVW TRflCTOR.400 CIO 16 ENGINE
E-7
-------
M
O
»I
m g
to-
01
oe:
o
10
LU
LU
Q_
o
10
CM
O in spec test results
' o
X o^
m
X
LU
3=
Q_ ~
Q_
0.00
FIGURE
10.00
60.00
60.00
20.00 30.00 40-00
TOTflL MILEflGE »10S
.UNIT 007 70 WHITE 30000 LB GVW TRflCTOR.400 CIO 16 ENGINE
E-8
-------
CM
o
s-1
o_
Q_
Og
^- 10-
o
10
O in spec test results
s
o
01
LU
Q_
10
ci
O
g
o-
91
X
LU
o
e
Q_
O
0-00
10.00
50.00
60.00
20.00 30.00 40.00
TOTflL MILEflGE *103
FIOURE E-8.UNIT 008 70 WHITE 30000 LB GVW TRflCTOR.400 CIO 16 ENGINE
E-9
-------
o
10
2=
Q_
Q_
o
10
O in spec test results
o
10
LU
CJ
d:
LU
Q_
0
o
10
NO and CO
o.oo
10.00
SO. 00
60.00
20.00 30.00 40.00
TOTflL MILEflGE »10S
FIGURE K-J.UNIT 009 70 WHITE 30000 LB GVW TRflCTOR.400 CIO 16 ENGINE
E-10
-------
* g
10-
CM
Og
a:
tt:
o
o
10
»l
O
Q£
LU
0_
CJ
S
g
X
LU
Q_
Q_
CJ
O in spec test results
0.00
10.00
50.00
60.00
20.00 30.00 40.00
TOTflL MILEflOE *103
FIGURE.S-W.UNIT 010 ?o WHITE 30000 LB GVM TRflcroR.40o cio IB ENGINE
E-ll
-------
Ko
O
UJ.
Q_
Q_
Od
o
LJ
1
1
Q_
Q_
LJ
o
o
O in spec test results
o
I I I
20.00 30.00 40-00
TOTRL MILEflGE *103
FIGURE F-n.UWlT Oil 70 IHC 3ZOOO LB GVW TRflCTOR.478 CIO V8 ENGINE
0-00
10.00
50.00
T
60.00
F- 1 2
-------
O in spec test results
o.oo
10.00
50.00
60.00
20.00 30.00 40.00
TOTflL MILEflGE *103
FIGURE E-12UNIT 012 70 IHC 32000 LB GVW TRflCTOR.478 CIO V8 ENGINE
E-13
-------
1901 ppm
HC
r
io-
M
Q_
Q_
Og
ot:
o
CJ
i-S
ZoT
LU
CJ
LU
Q_
o
o"-
CJ
o
to
o
ea-
rn
x
o
o
Q_
Q_
LJ
31
o
o
0.00
FIGURE
10.00
60-00
BO -00
20.00 30.00 40.00
TOTflL MILERGE «103
UNIT 013 70 IHC 32000 LB GVW TRflCTOR.478 CIO V8 ENGINE
F 1-4
-------
CM
O
X g
w
Csl
Q_
Og
ce:
o
O in spec test results
lo
o.oo
10-00
20.00
30.00
40.00
50.00
60.00
TOTRL MILEflGE *103
FIGURE E-14UNIT 014 70 IHC 32000 LB GVW TRflCTOR.478 CIO V8 ENGINE
E-15
-------
M
o
Q_
Q_
Og
Z y,.
O in spec test results
to
LU
CJ
10
o
1
O
-g
Hf o-
«
X
o
o
Q_
Q_
0.00
10.00
60.00
20.00 90.00 40.00 BO.00
TOTRL MILERGE »103
FIGURE F;-i-JJ6K7 015 70 IHC Z5500 LB CVW SCHOOL BUS 345CIO V8 ENGINE
E-16
-------
M
O
Q_
fl-
og
o:
a:
o
o
O in spec test results
1
LU
LU
Q_
1
O
g
o-
-------
N
o
Ko
o
lO-
Otf
Q_
Q_
a:
o
o
10
O in spec test results
1
o
10
O
CJ
1
O
O-
X
UJ
n
o
o
Q_
QL.
0
z:
o
o
0.00
10.00
SO. 00
60.00
30.00 40-00
TOTflL MILEflGE «10S
FIGURE HT-174JNIT 017 70 IHC 25500 LB GVW SCHOOL BUS 345CIO V8 ENGINE
E-18
-------
M
O
»I
IK g
10-
M
21
Q_
10-
O
O
LU
CJ
a:
LU
a.
CJ
o
ID
X
LU
OL
CL
CJ
0.00
10.00
20.00
30.00
40.00
50.00
60.00
TOTflL MILEflGE *103
FIGURE S-18UNIT 018 70 IHC 22000 LB GVW SCHOOL BUS 345CID V8 ENGINE
E-19
-------
M
O
Xo
O
ID'
Q_
Q_
o
o
10
O in spec test results
o
10
LU
LJ
o
10
o
10
"" o
* o^
X
LU
g
Q_
Q_
LJ
0.00
10.00
50.00
60.00
20-00 30.00 40.00
TOTflL MILEflGE *103
FIGURE K-1QUNIT 019 70 IHC 22000 LB GVW SCHOOL BUS 345CIO V8 ENGINE
E-20
-------
X g
10-
CM
Q_
Q_
Og
o
O in spec test results
O
10
1
LU
O
OE:
LU
a.
O
CM
10
o
X
LU
Q_
g
o.oo
10.00 20.00 30.00 40.00
TOTflL MILEflGE *103
020 70 FORD 10000 LB GVW STflKE
E-Z1
50.00
60.00
300 CID 16 ENGINE
-------
o
UJ-
CM
Q_
Q_
O
o
u>
O in spec test results
LU
CJ
o
U)
CJ
O
o
Q_ ~
Q_
CJ
31
o
o
~b
1 1 1
00 10-00 £0.00 30.00
TOTflL MILEflGE
FIGUREr-.il.UNIT 021 70 FORD 7500 LB GVH
40.00
*103
PICKUP
i i
BO. 00 00.00
240 CIO 16 ENGINE
E-21
-------
N
O
3K o
10*
M
z:
Q_
Q_
Og
O in spec test results
1 1 1
~0.00 10.00 20.00 30.00 40.00
TOTflL MILEflGE *103
FIGURE E-22UNIT 022 71 IHC 25500 LB GVW LINE
E-23
I
50.00
T
60.00
392 CID V8 ENGINE
-------
O in spec test results
o
LJ
O
T
40.00
SO. 00
0.00
10.00
T
fo.oo
T
30.00
60.00
fcV WV ^V VW . -
TOTRL MILEflGE «103
FIGURE5--3UNIT 023 70 IHC Z5500 LB GYM LINE 392 CIO V8 ENGINE
E-24
-------
O
"?.
CM
UJ
UJ
OL
CJ '
O in spec test results
0.00
10.00
60.00
20.00 90.00 40.00 50.00
TOTflL MILERGE *103
392 CID V8 ENGINE
rIGURE E-24UNIT 024 71 IHC 25500 LB CVW LINE
E-25
-------
CM
o
o
o
Q_
Q_
O in spec test results
to
o -'
o
o
u>
LJ
0.00
10.00 20.00 30-00 40-00
TOTflL MILEflOE *103
IT 025 71 IHC Z5500 L8 GVH LINE
80.00
60.00
392 CIO VB ENGINE
-------
LU
CJ
S
~
CM
CJ
in
0.00
10.00
FIGUREE-26UNIT OZ6
20.00 30.00 40.00
TOTflL MILEflGE *103
71 IHC 14000 LB CVM VRN
E-27
SO.00
60.00
304 CIO V8 ENGINE
-------
O in spec test results
o
u>
CJ
CE
LU
Q_
CJ
ID
O
o
o
-
* 0-\
-------
O in spec test results
LU
CJ
C£
LU
Q_
o
e>3-
CJ
* o-
X
LU
0.00
10.00
50.00
60.00
FIGUREE-28UNIT 028
20.00 30.00 40.00
TOTflL MILEflGE *103
70 FORD10000 LB GVW SERVICE 300 CIO 16 ENGINE
E-29
-------
o
m o
m o
CD
CJ
g
10
CM
CJ
C£
UJ
Q_
O
CJ
o-
n
>c
LU
31
Q_
Q_
CJ
x:
1 -
40-00
*103
SERVICE
0-00
FIOURE
10-00
IT 029
20.00 30.00
TOTflL MILEflGE
70 FORD16000 LB DVH
E-30
60.00
80-00
300 CIO 16 ENGINE
-------
M
O
w O
M o
CM
2Z
Q_
Og
O
O
u>
to
«
CM
CJ
Ql
LU
Q_
CJ
-g
m o.
X
LU
DC
Q_
LJ
0.00
10.00
50.00
80.00
FIGURE E-30UNIT 030
20.00 30.00 40.00
TOTflL MILEflGE *103
70 CHEV 9000 LB GVW SERVICE Z9Z CIO 16 ENGINE
E-31
-------
o
«I
X g
Q_
Q_
Og
o
10
0
g
*sH
X
Q_
LJ
0.00
\0.00
SO .00
BO .00
FIGUREE-31'JNIT 031
20.00 30.00 40-00
TOTflL MILEflGE *10S
70 CHEV 7500 LB GVM SERVICE 250 CID 16 ENGINE
E- 32
-------
o
ID
M
Q_
Q_
Og
IP
O
10
ct:
LU
Q_
o
to
10
X
UJ
Q_«M
QL
CJ
e
"b.
oo
10.00
50.00
60.00
FIGURE E-32UNIT 032
20.00 30.00 40.00
TOTflL MILEflGE *103
70 CHEV 7500 LB GVW SERVICE 250 CID 16 ENGINE
E-33
-------
o
o
o
Q_
Q_
Og
O
o
in
LU
O
or
Lu
Q_
o
CD ^'
o
o
o-
X
LU
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2=°*
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Q_ CJ I
Q_
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-------
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Q_
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C£
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in
o
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^o^
Q_ CM
Q_
CJ
O.OC
T
10 ,00
FIGURE E-34.UNIT 034
20.00 30.CO
TOTflL MILEflGE
71 FORD 24000 GVW
1
40.OC
*10:
VflN
i
50.00
60.OC
300 CID 16 ENGINE
E-35
-------
-1
1
C.'
o
o
U5
CsJ
0-
ct:
o
D
in
o
\n
LU
n_
o
ul
LJ
o
1/5
O
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X
o-
Q_ CJ
Q_
7+
Or> r
Ut,
'0 00
i-IGURE E-35.LN: T
1 1 1
20.OC 3i CO 40.00
TOTflL MILEPGE *10
71 F3RO 24000 GVW VflN
E-36
i
SO.00
I
60.00
300 CIO 16 ENGINE
-------
0*
O
* g
Q_
Cl-
Og
Z nJ.
fle
o
o
g
UJ
o
Q_
g
CM
S
*
O
O
*
x
LU
QL.M
Q_
O
0.00
10.00
90.00
60.00
FIGUREE-36UNIT 036
20.00 30.00 40.00
TOTflL MILERGE *10S
70 CHEV 7500 LB GYM SERVICE Z50 CID 16 ENGINE
E-37
-------
o
_-<
Kg
S'
Q_
Q_
OC
1
1-8.
Z M
UJ
o
QZ
UJ
Q_
8*
>c
UJ
8
Q.
O
rO.OO 90.00 40.00
TOTflL MILEflGE »109
FIGUREE-37UNIT 037 70 CHEV 7500 LB GVH SERVICE Z50 CIO 16 ENGINE
E-38
T
o.oo
10.00
o.oo
60.00
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FIGUREE-Q3UNIT 093 70 FORD 7500 LB GVH REPfllR 360 CIO V8 ENGINE
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FIGUREE-94UNIT 094 70 CHEV 14000 LB CVW MflINT
E-95
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Z9Z CID 16 ENGINE
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TOTflL MILEflGE *103
FI&UREFJ-qsUNIT 095 70 FORD 8300 LB GVW MfllNT.
80.00
60.00
360 CID V8 ENGINE
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TOTflL MILEflGE *103
FIGUREE-96UNIT 096 70 FORD 7500 LB GVW MfllNT.
E-97
50.00
60.00
Z40 CIO 16 ENGINE
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TOTRL MILERGE «109
IT 097 70 FORD 7500 LB OVH WELDER
50-00
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240 CIO 16 ENGINE
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TOTflL MILEflGE *103
FIGUREE-98UNIT 098 70 FORD 21000 LB GVW MflTER TR 330 CID V8 ENGINE
E-99
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M
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TOTflL MILEflGE *10S
FIOUREE-QQUNIT 099 70 FORD 21000 LB OVH HflTER TR 330 CIO V8
E-100
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20-00 30.00 40.00 50.00
TOTflL MILEflGE *109
FIGURE E-100. UNIT 100 70 FORD 21000 LB GVH MflTER TR 330 CIO V8 ENGINE
E-101
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FIGURE E-102. UNIT
10.00 20.00 30.00 40.00
TOTflL MILEflGE *103
102 70 FORD 6100 LB GVW MfllNT.
E-103
50.00
60.00
360 CID V8 ENGINE
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E-104
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10.00
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E-105
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TOTflL MILEflGE «109
FIGURE E-iOS.UNIT 105 70 IHC Z5500 LB &VH HfllNT. TR 392 CIO V8 ENGINE
E-106
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CM
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10
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LU
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10.00
60.00
20.00 30.00 40.00 50.00
TOTflL MILEflGE *103
FIGURE E-106. UNIT 106 70 FORD 8300 LB GVW MfllNT. TR 360 CIO V8 ENOINE
E-107
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20.00 90.00 40.00
TOTflL MILEflGE *10S
FIGURE E 107. UNIT 107 70 CHEV 7500 LB GVH MfllNT.
E-108
50.00
60.00
307 CIO V8 ENGINE
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2151 ppm HC
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FIGURE E-108. UNIT 108
20.00 90-00 40.00
TOTflL MILEflGE *103
70 CHEV 10000 LB GVW MfllNT.
E-109
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50.00 80.00
307 CIO V8 ENGINE
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FIGURE E-109. UNIT 109 70 CHEV 10000 LB GVW MfllNT.
E-110
BO .00
60.00
307 CIO V8 ENGINE
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FIGURE E-110.
10.00
20.00 30.00 40.00
TOTflL MILEflGE *103
UNIT 110 70 CHEV 7500 LB GVW MfllNT.
E-lll
50.00
I
80.00
307 CIO V8 ENOINE
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10.
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FIGURE E-lil
10.00
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TOTflL MILEflGE »10S
UNIT 111 70 CHEV 7500 LB GVH MfllNT.
E-112
50.00 60.00
307 CIO V8 ENGINE
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1974 ppm HC
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FIGURE E-112. UNIT 112 70 CHEV 10000 LB GVW MflINT
E-113
50-00
60.00
307 CID V8 ENGINE
-------
M
o
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LU
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10.00
FIGURE D-113. UNIT 113
tO.00 30.00 40.00
TOTflL MILEflGE »103
71 IHC 24000 LB CVH CONSTR.TR
E-114
SO .00
60.00
392 CIO V8 ENGINE
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FIGURE E-114.
10.00
T
50.00
60.00
20.00 30.00 40.00
TOTflL MILEflGE *109
UNIT 114 71 IHC 25500 LB CVW CONSTR.TR 392 CID V8 ENGINE
E-115
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10.00
80.00
60.00
20.00 30.00 40.00
TOTflL MILEflGE *103
FIGURE E-H5. UNIT 115 71 IHC 25500 LB GVW CONSTR.TR 392 CIO V8 ENGINE
E-116
-------
1851 ppm HC
CM
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10.00
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20.00 30.00 40.00
TOTflL MILEflGE »103
FIGURE E-116. UNIT 116 70 GMC 14000 LB GVW MOVING TR 350 CID V8 ENGINE
E-117
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FIGURE E-117. UNIT 117 70 IH1C 10000 LB CVH HOVING TR 350 CIO V8 ENDINE
E 118
-------
M
O
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10.00 £0.00 30.00 40.00 SO. 00 60.00
TOTflL MILEflGE *103
FIGURE E-118. UNIT 118 70 DODGE 10000 LB GVW MfllL 318 CID V8 ENGINE
E-119
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M
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10.00
80.00
80.00
20.00 30.00 40.00
TOTRL MILEflGE «109
FIGURE E-119. UNIT 119 70 DODGE 10000 LB GVH MfllL 318 CIO V8 ENGINE
E-120
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CM
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FIGURE E-120.
10.00
50.00
00.00
20.00 30.00 40.00
TOTflL MILEflGE *109
UNIT 120 70 DODGE 10000 LB GVW MfllL 318 CIO V8 ENGINE
E-121
-------
M
o
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O in spec test results
s
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31
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FIGURE E-121,
10.00
BO .00
M.OO
20-00 90.00 40.00 .
TOTflL MILEflGE *10S
UNIT 1Z1 70 Otic 10000 LB GVH DELIVERY 292 CIO 16 ENGINE
E-122
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FIGURE E-122.
10.00
50.00
60.00
20.00 30.00 40.00
TOTflL MILEflGE *103
UNIT 122 70 CMC 10000 LB GVW DELIVERY 292 CID 16 ENGINE
E-1Z3
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FIGURE E-124.
10.00
20.00
30.00
40.00
60.00
80.00
TOTflL MILERGE »103
UNIT 124 70 DMC 10000 LB GVW DELIVERY Z92 CID 16 ENGINE
E-1Z5
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FIGURE E-125.
10.00
80.00
60.00
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UNIT 125 70 DODGE 7000 LB GVM DELIVER^18 CIO V8 ENGINE
E 126
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FIGURE E-126.
10.00
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60.00
20.00 30.00 40.00
TOTflL MILEflGE *109
UNIT 126 70 DODGE 7000 LB GVWDELIVERY318 CID V8 ENGINE
E-127
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TOTflL MILEflOE *109
FIGURE E-127. UNIT 1Z7 71 FORD Z7SOO LB GVH DELIVERY 391 CIO V8 ENGINE
E-128
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0.00
FIGURE E-128.
10.00
50.00
60.00
20.00 30.00 40.00
TOTflL MILEflGE *103
UNIT 128 71 FORD 27500 LB DVW DELIVERY 391 CIO V8 ENQINE
E-129
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O in spec test results
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0.00
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1 - 1 - - -- T
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FIGURE E-129. UNIT 129 71 FORD Z7500 LB GVH DELIVERY 391 CIO V8 ENGINE
E-130
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UNIT 130 71 IHC 34000 IB GVW
E-131
40,DC
60.CO
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FIGURE E-131. UNIT 131
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71 IHC 34000 LB GVH GflRBflGE
E-132
BO .00
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392 CIO V8 ENGINE
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10.00
20.00 30.00 40.00
TOTflL MILEflGE *103
FIGURE E-132. UNIT 132 71 IHC 34000 LB GVW GflRBflGE
E-133
80.00
60.00
392 CID V8 ENGINE
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E-134
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FIGURES-134. UNIT
10.00 20.00 30.00 40.00
TOTflL MILEflGE *103
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E-135
50.00
60.00
392 CIO V8 ENGINE
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23% CO
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FIGURE E-135.
10.00
20.00 90.00 40.00
TOTflL MILEflGE «103
UNIT 135 71 IHC 34000 LB GVH GflRBflGE
80.00
80.00
392 CIO V8 ENGINE
E-136
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FIGURE E-136,
10.00
20.00 30.00 40.00
TOTflL MILEflGE *103
UNIT 136 71 IHC 34000 LB GVW GflRBflGE
50.00
60.00
392 CIO V8 ENGINE
E-137
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TOTflL MILEflGE «109
FIGURE E-137. UNIT 137 71 IHC 34000 LB GYM GflRBflCE
E-138
80.00
00.00
392 CIO V8 ENGINE
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FIGURE E-138.
10.00 20.00 30.00 40.00
TOTflL MILEflGE *103
UNIT 138 71 IHC 34000 LB GVH GflRBflCE
E-139
50.00
60.00
392 CIO V8 ENGINE
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7. 68% CO
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FIGURE E-139. UNIT 139 71
to.oo so.oo 40.00
TOTflL MILEflGE »10S
IHC 34000 LB CYH GflRBflGE
E-140
50.00
60.00
392 CIO V8 ENGINE
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Q_
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FIGURE E-140. UNIT
-1 1 1 1
10.00 20.00 90.00 40.00
TOTflL MILEflGE *109
140 71 IHC 34000 L0 GVW GflRBflGE
E-141
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80.00
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60.00
392 CIO V8 ENGINE
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FIGURE E-141
10.00
50.00
80.00
20.00 30.00 40.00
TOTflL MILEflGE «10S
UNIT 141 71 FORD 27500 LB CVH DELIVERY 391 CIO V8 ENGINE
E-142
-------
CM
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66, 593 miles
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10.00
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TOTflL MILEflGE *109
FIGURE E-l42. UNIT 142 71 IHC 32000 LB GVW RENTAL
E-143
50.00
80.00
478 CID V8 ENGINE
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FIGURE E-143. UNIT
10.00 20.00 30.00 40.00
TOTflL MILEflGE *103
143 71 IHC 32000 LB GVH RENTAL
E-144
BO.00
60.00
478 CIO V8 ENGINE
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CM
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50.00
60.00
20.00 30.00 40.00
TOTflL MILEflGE *103
FIGURE E-144. UNIT 144 71 IHC 32000 LB GVW RENTAL 478 CID V8 ENGINE
E-145
-------
O in spec test results
0.00
FIGURE E-145.
10.00
80.00
20.00 90.00 40.00
TOTflL MILEflGE «109
UNIT 145 71 CHEV 24000 LB GVM DELIVERY 350 CIO V8 ENGINE
E-146
-------
10
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50.00
60.00
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FIGURE E-146. UNIT 146 71 CHEV 24000 LB CVM DELIVERY 350 CIO V8 ENGINE
E-147
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FIGURE E-147. UNIT 147 71 CHEV Z4000 LB &VH DELIVERY 350 CIO V8 EN0INE
E-148
-------
M
O
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0.00
10.00
50.00
80.00
20.00 90.00 40.00
TOTflL MILEflGE *103
FIGURE E-148. tfNIT 148 71 CHEV 24000 LB GVH DELIVERY 350 CID V8 ENGINE
E-149
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0-00
FIGURE E-149.
10.00
BO.00
60.00
CO.00 50.00 40.00
TOTflL MILEflGE »103
UNIT 149 71 CHEV 24000 LB GVH DELIVERY 350 CIO V8 ENGINE
E- 1 SO
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Csl
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FIGURE E-150.
10.00
50.00
00.00
20.00 30.00 40.00
TOTflL MILEflGE *10S
UNIT ISO 71 CHEV 24000 LB CVW DELIVERY 350 CIO V8 EN&INE
E-151
-------
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FIGURE E-151
1 - 1 - 1 - 1 - 1 - 1 --
10.00 20.00 90.00 40.00 80-00 60-00
TOTflL MILEflGE *10S
UNIT 151 71 CHEV 32500 LB GVH MOVING TR427 CIO V8 ENGINE
E 152
-------
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FIGURE E-152.
10.00
50.00
60.00
20.00 30.00 40.00
TOTflL MILEflGE «103
UNIT 152 71 CHEV 24000 LB GVW DELIVERY 350 CIO V8 ENGINE
E-153
-------
APPENDIX F
PLOTS OF EMISSION LEVEL CHANGES WITH
MILEAGE BY ENGINE MODEL GROUP
Note: ^ on computer printout sheets indicates multiplier
-------
APPENDIX F. SAMPLE CALCULATIONS FOR PERCENT CHANGE IN EMISSIONS
BY ENGINE GROUP
1. Data for Engine group 1, Chevrolet 250 CID 16 engines, hydrocarbon
emissions.
Unit Number
31
32
36
37
Round 1
Odometer miles
HC PPM
Round 2
Odometer miles
HC PPM
Round 3
Odometer miles
HC PPM
Round 4
Odometer miles
HC PPM
Round 5
Odometer miles
HC PPM
Round 6
Odometer miles
HC PPM
Round 7
Odometer miles
HC PPM
3000
266
9171
260
14823
222
26720
255
37406
214
48359
228
59460
308
1274
274
3250
284
6022
239
11450
223
16329
230
21358
295
26246
277
2228
249
3797
285
7096
293
11213
252
15724
371
19000
266
22180
290
841
263
4187
294
6459
284
12163
272
17823
261
23420
229
wrecked
First, the highest round 1 odometer mileage is chosen as the base
mileage. In this example the base mileage is 3000 miles, the initial
mileage for unit 31.
Next, the emission level at 3000 miles is calculated for the remaining
units as follows:
(a) Determine when the base mileage is reached for each
unit. In this example 3000 miles is reached between
round 1 and round 2 inspections for all trucks
(b) Determine the equation for the line between the HC
levels on either side of the base mileage.
i. e. , HC - (A x Mileage) + B
F-2
-------
For unit 32: A - = ' °°506
B = 274 - (.00506 x 1274) - 267.6
at 3000 miles HC = (.00506 x 3000) + 267.6
HC = 283
B - 249 - (. 0229 x 2228) = 197. 9
at 3000 miles HC = (. 0229 x 3000) + 197. 9
HC = 267
For unit 37: A = (2?4-263)
(4187-841)
B = 263 (. 00926 x 841) = 255. 2
at 3000 miles HC - (. 00926 x 3000) + 255. 2
HC = 283
4. At the base mileage, the interpolated base emission level is now
available for all units. For this example, at 3000 miles the base
HC level is:
Unit Base HC ppm
31 266
32 283
36 267
37 283
5. Using each unit's base emission level the percent change from the
base emission level is calculated for the test results from each round.
F-3
-------
(a) Unit 31
.. . 266-266 inn - no/
Round 1 = ^-f-? x 100 - 0%
Zoo
Round 2 -- 260;266 xlOO = -2.3%
266
Round 3 - x 100 - -16. 5%
266-
Round 4 - 255"Z66 x 100 = -4. 1%
266
Round 5 = Z14"266 x 100 = -19. 6%
266
Round 6 = Z28"266 x 100 = -14. 3%
266
Round 7 .308-266 x 1QQ = +15>8%
266
(b) Unit 32
Round 1 2?4"283 x 100 = 3.2%
283
Round 2 = 284-283 x lop o.4%
283
Round 3 = Z39'283 x 100 = -15. 5%
283
Round 4 = 223"283 x 100 = -21. 2%
283
230-283
Round 5 = x 100 - -18. 7%
283
295 283
Round 6 = x 100 = +4. 2%
283
277-283
Round 7 = x 100 = -2. 1%
283
F-4
-------
(c) Unit 36
J , 249-267
Round 1 - = -6. 7
267
J 0 285-267 .
Round 2 = - = +6. 7
267
=+9.7
267
252-267
Round 4 - = -5. 6
267
371-267
Round 5 = - + 39. 0
267
266-267
Round 6 ^ = -0.4
267
, 290-267 0 .
Round 7 =+8.6
267
(d) Unit 37
263-283
Round 1 = = -7. 1
283
294-283
Round 2 - = +3.9
283
, . 284-283 n .
Round 3 = - + 0. 4
283
272-283
Round 4 = ~ -3. 9
283
J r 261-283
Round 5 = -7. 8
283
n . 229-283 , ,
Round 6 = - -19. 1
283
F-5
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Group 1. Chevrolet 250 CID 16 Engines
Symbol Unit Number
0 31
O 32
a 36
+ 37
I
350.00
o.oo BO.oo
GROUP 1 CO
i
100.00
I
150.00
200.00 160.00 300.00
TOTflL MILEflGE
400.00
450.00
000.00
550.00
I
600.00
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Group 1. Chevrolet 250 CID 16 Engines
Symbol Unit Number
O
31
32
36
37
a
B
'fl.OO 50.00 100.00 ISO.00
OROUP 1 NO (NOT CORRECTED)
too .00 no. oo soo. DO
TOTflL MILEflGE
SM.
4OO.OO
480.00
BOO.00
BSD.00
600.00
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Chevrolet 250 CID 16 Engines
Unit Number
~~31
32
36
37
80.00
100.00
180.00 tOO.00 ZSO.OO 300.00
TOTPL MILEflGE
SSO.
OD
*
400.00
490.00
800.00
380.00
800.00
CROUP 1
NO CORRECTED
-------
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Group 2. Chevrolet 292 CID Id Engine!
Symbol Unit Number
a ~~Jo
O 94
0.00
BO .00
100.00 ISO- 00
tOO. 00 (50.00 900.00
TOTflL MILEflGE
980.00
10*
400.00 410.00
BOO.00
BBO.OO
I
MO .00
OROUP 2 HC
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Chevrolet 292 CID 16 Engines
Unit Number
30
94
i O BO
0.00 50.00
GROUP 2 CO
100.00 150.00 200.00 260.00 300.00
TOTflL MILEflGE
950.00
*ior
400.00
450.00
500.00
550.00
000.00
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Chevrolet 292 CID 16 Engines
Unit Number
30
94
O (B
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0.00 80.00 tOO.00 ISO.00
OROUP 2 NO (NOT CORRECTED)
too.oo
250.00 900.00
TOTflL MILERGE
980.00
«ior
400-00
480.00
800.00
880.00
800.00
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Group 2. Chevrolet 292 CID 16 Engines
Symbol Unit Number
0 30
O 94
0.00
CROUP Z
80.00
100.00
180.00 ZOO.00 £80.00 900.00 980.00 400.00 480.00 500.00
TOTflL MILEflGE *10*
880.00
800.00
NO CORRECTED
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Group 3. Chevrolet 307 CID V8 Engine
Symbol Unit
D 60
O 61
A 104
+ 107
X 108
O 109
t no
X 111
X Z 112
* 80
+
X
A
X
x a
0 x .
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T A A
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0.00 SO. 00 100.00 ISO. 00 tOO. 00 CBO .00 30O.OO 95D.OO 4OO.OO
TOTRL MILEflGE «10r
Number
(initial mileape too high*
(wrecked after first test)
Z
1 -1 T ,
4BO.OO BOO. 00 MO. 00 MO. 00
-------
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81
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104
+ 107
X 108
O 109
^ 110
X 111
Z 11Z
80 (initial mileage too high)
85 (wrecked after first test)
0.00
BO. 00
100.00 150.00 ZOO.00 260.00 300.00
TOTflL MILEflGE
360.00
400.00
480.00
600.00
BSD.00
600.00
GROUP 3 CO
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Group 3. Chevrolet 307 C1D V8 Engine
Unit Number
60
O
O
X
O
t
61
104
107
108
109
110
111
112
80 (initial mileage too high)
85 (wrecked after first test)
'o-oo to. oo 100.00 iso.oo
OROUP 3 NO (NOT CORRECTED)
COD-00 £80.00 300.00 S80-J
TOTRL MILERGE «10'
4OO.OO
450.00
MM.OO
BBO.OO
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Group 3. Chevrolet 307 CID V8 Engine
Smbol Unit Number
0
O
6
+
X
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t-
X
2
60
61
104
107
108
109
110
111
112
80 (initial mileage too high)
85 (wrecked after first test)
i i i
'0.00 50.00 100.00 150.00
GROUP 3 NO CORRECTED
ZOO.00 260.00 300.00 350.00
TOTflL MILER&E *10$
400.00
450.00
500.00
550.00
BOO.00
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Group 4. Chevrolet 350 CID V8 Engines
Symbol Unit Number
O
*
O
145
146
147
148
149
150
15Z
i 1
100.00 180.00
0.00 BO.00
CROUP 4 CD
ZOO.00 Z50.00 300.00 350.00
TOTflL MILEflOE *10r
400.00 480.00 800.00 880.00 800.00
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Symbol Unit Number
O
145
146
147
148
149
150
152
'o.oo BO. oo 100.00 iso.oo
GROUP 4 NO (NOT CORRECTED)
4BO.OO
.00 £60.00 300-00
TOTflL MILEflGE «10
?°
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BOO.00
BBO.OO
BOO .00
-------
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Group 4. Chevrolet 350 CID V8 Engines
Symbol Unit Number
0 145
O 146
X
O
147
148
149
150
152
OD
CC
QQb
O
a:
cc
z:
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I 1 1 1 1 1 1 1 1
ZOO-00 250.00 300.00 350.0.0 400.00 480.00 500.00 580.00 800.00
TOTflL MILEflGE
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GROUP 4
60.00
100.00
150.00
350.00
*10?
NO CORRECTED
-------
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Group5. Chevrolet 366 CIDV8 Engines
Symbol Unit Number
O 62
O 63
Bat
0.00 BO .00
OftOUP 5 HC
100.00
ISO.00
too.oo
£90.00 300.00
TOTflL hILEfl&E
390.
400.00
480.00
800.00
880.00
I
000.00
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Chevrolet 366 CID V8 Engines
Unit Number
62
63
1 1
'o.oo so.oo 100.00
CROUP 5 CO
I
ISO.00
I
200.00
250.00 300.00
TOTflL MILEflGE
950.00
*icr
400.00
I
450.00
I
500.00
I
550.00
600.00
-------
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Group 5. Chevrolet 366 CID V8 Engines
Symbol Unit Number
3 62
O 63
i
800.00
'a.00 so.oo too.oo 150.00
OROUP 5 NO (NOT CORRECTED)
too.oo no.oo 900.00
TOTflL MILEflGE
950.00
«ior
400.00
4M.OO
600.00
MMJM
-------
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Group 5. Chevrolet 366 CID V8 Engines
Symbol Unit Number
Q 62
O 63
Q
o o a
a o
'0.00 50.00 100.00 1BO.OO
CROUP 5 NO CORRECTED
200.00
ISO.00 300.00
TOTflL MILEflGE
950.00
*icr
400.00
400.00
500.00
BOO. 00
600.00
-------
a
+ 279
a
HI (.7,
a
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Chevrolet 4Z7 CID V8 Engines
Unit Number
103
151
1
'OJOO 50.00
GROUP 6 CO
i 1 1 1 1
100.00 iso.oo eoo.oo eso.oo 900.00
TOTflL MILEflGE
950.00
*icr
400.00
450.00
500.00
550.00
I
BOO.00
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Chevrolet 427 CID V8 Engines
Unit Number
103
151
0.00 M.OO 100.00 180.00
GROUP 6 NO (NOT CORRECTED)
{SO.00 900.00
TOTflL MILEflGE
ilO1
400.00
4M.OO
MM .00
M.OO
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Chevrolet 427 CID V8 Engines
Unit Number
103
151
0.00 50.00 100.00 150.00
GROUP 6 NO CORRECTED
tOO.00 (50.00 900.00
TOTflL MILEflGE
950.
00
$
400.00
450.00
I
500.00
550.00
800.00
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Dodge 225 CID 16 Engine
Unit
75
76
77
86
87
88
89
90
100.00
480.00
0.00 50.00
GROUP 7 CO
ISO.00 ZOO.00 ZBO.OO 300.00
TOTflL MILEflGE
350
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*
400.00
800.00
880.00
I
800.00
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Dodge ZZ5 CID 16 Engine
Unit Number
~~75
76
77
86
87
88
89
90
"l """""' I I t I
£00-00 £50*00 900-00 950*00 400-00
TOTRL MILEflGE «10r
'0.00 §0.00 100.00 IM.OO
GROUP 7 NO (NOT CORRECTED)
480.00
800.00
880.00
00.00
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X x Symbol
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Symbol
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5
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4.
Dodge 318 CID V8 Engine
Unit Number
1
2
3
4
5
53
64
65
66
67
118
1ZO
125
1Z6
o.oo to.oo
GROUP 8 HC
100.00
I BO .00
f oo-oo
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TOTflL MILEPGE
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r
400.00
4M.OO
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1.00
00.00
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Dodge 318 CID V8 Engine
Unit Number
1
2
3
4
5
53
64
65
66
67
118
119
120
125
126
0.00 BO.00 100.00 ISO.00
GROUP 8 NO (NOT CORRECTED)
too. oo no.oo 900.M 900.00
TOTflL MILEflGE «10r
400.00
I
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900.00
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Dodge 318 CID V8 Engine
Unit Number
1
2
3
4
5
53
64
65
66
67
118
119
120
125
126
0.00 BO.00 100.00 150.00
GROUP 8 NO CORRECTED
ZOO.00 CEO.00 900.00
TOTflL MILEflGE
400.00
460-00
BOO.00
BBO.OO
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Ford 240 CID 16 Engines
Unit Number
~T\
96
97
0.00 SO.DO 100.00 150-00
GROUP 9 NO (NOT CORRECTED)
200.00 CSO.OO MO.OO
TOTflL MILEflGE
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400.00
480.00
800.00
NO.00
00.00
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Group 9. Ford 240 CID 16 Engines
Symbol Unit Number
0
O
21
96
97
'o.oo so.oo 100.00 iso.oo
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200.00 ZED.00 300.00
TOTflL MILERGE
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400.00
450.00
600.00
500.00
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Group 10. Ford 300 CID 16 Engine
Symbol Unit Number
H 20
O
6
4-
X
X
Z
Y
X
*
Q
27
28
29
39
40
41
43
44
45
54
81
82
33-35 (transferred after first test)
0.00 BO.00
GROUP 10 HC
tM.00 160.00 tOO. 00 tBO.OO 300-00 MO.tj
TOTflL MILEflGE «1CT
400.00
480.00
MM.00
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Symbol
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0 B
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+ 957.
Ford 300 CID 16 Engine a
Unit Number
20 B
27
28
29
39 a
40 Y
41
43
44
45
54 *
81
82 °
33-35 (transferred after first test)
B * *
0 + + V +
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Z* Y X .
° x* a
B
Z
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180.00 KM. 00 ZBO.OO 9OO.OO SBO.OO 400.00 4BO.OO BOO .00 MO.OO MM DO
TOTflL niLEflGE «1CT
OAOUP 10 NO (NOT CORRECTED)
-------
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20
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27
a
28 a
29
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40 *
41
43
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45
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81 °
82
33-35 (transferred after first test)
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GROUP 10 NO CORRECTED
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Ford 3CU CID V8 Engine
Unit Number
Ti
900.
0.00 M.OO
OROUP 11 HC
100.00
1BO.OO
too.oo
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TOTflL niLEfl&E
400.00
4W.OO
800.00
MO .00
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Group 11. Ford 302 CID V8 Engine
Symbol Unit Number
Q 78
400.00
0.00 BO.00
GROUP 11 CO
100.00 ISO.00 £00.00 280.00 300.00
TOTflL MILERBE
9BO.OO
*itr
480.00
BOO.00
EBO.OO
800.00
-------
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Group 11. Ford 302 CID V8 Engine
Symbol Unit Number
Q 78
iii
'O.OO BO.OO 100.00 160.00
CROUP 11 NO (NOT CORRECTED)
tOO. 00 ISO .00 900.00
TOTflL MILEflGE
MO. 00
«10l
400.00
480.00
BOO .00
mo .00
600.00
-------
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Group 12. Ford 330 CID V8 Engines
Symbol Unit Number
0 ~~98
O 99
A 100
+ 101
0.00 M.OO
OROUP 12 HC
100.00
IK).00
COO .00
CM.00 900.00
TOTflL HILERGE
360.00
«10r
4OO.OO
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no.oo
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Group 12. Ford 330 CID V8 Engines
Symbol Unit Number
0 98
O 99
A 100
+ 101
B O +
I 1 1 1 1
100.00 180.00 200.00 £50.00 300.00
TOTRL MILEflGE
i
450.00
0.00 BO.00
GROUP 12 CO
350-00
*icr
400.00
I
BOO.00
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800.00
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Group 12. Ford 330 CID V8 Engines
Symbol Unit Number
0 98
O 99
& 100
4- 101
'o.M 80.00 100.00 180.00
CROUP 1Z NO (NOT CORRECTED)
BOO .00
I
800.00
eoo.oo CEO. oo soo.oo
TOTflL MILEflGE
900.00
*10F
400.00
480.00
880.00
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Group ^. Ford 330 CID V8 Engines
Symbol Unit Number
Q 98
O 99
A 100
+ 101
'0.00 50.00 100.00 150.00 £00.00 ZSO.OO 900.00
TOTflL MILEflGE
350.
00
l
400.00
450.00
500.00
550.00
800.00
CROUP 12
NO CORRECTED
-------
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Group 13.
Symbol
Q
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Group 13. Ford 360 CED V8 Engines
Symbol Unit Number
d 92
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8
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Group 13. Ford 360 CID V8 Engines
Symbol Unit Number
Q
CD
OD
f
a
92
93
102
106
95 {dropped because of high
initial mileage)
1 1 1
'o.OO (0.00 100.00 ISO.00
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I 1 1
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TOTflL MILEflGE
i
400.00
380.
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480.00
600.00
I
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Symbol Unit Number
a
O
A
9Z
93
102
106
95 (dropped because of high
initial mileage)
1 1 I
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GROUP 13 NO CORRECTED
200.00 250-00 300.00
TOTflL MILEflGE
350.00
400.00
450.00
500.00
550.00
800.00
-------
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Group 14. Ford 36l CID V8 Engines
Symbol Unit Number
0 ~68
O 83
^ 84
0.00 M-00
GROUP 14 HC
100.00 190.00
tOO.00 £50.00 300.00
TOTflL MILEflGE
9SO.M
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400.00
450.00 500.00 550.00 000.00
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Group 14. Ford 361 CID V& Engines
Symbol Unit Number
0 68
O 83
& 84
'O.OO 50.00
GROUP 14 CO
100.00
200.00
980.00
450.00
150.00
250.00 900.00
TOTflL MILEflGE
400.00
500.00
550.00
600.00
-------
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Ford 361 CID V8 Engines
Unit Number
68
83
84
( iii
0.00 SO.00 100.00 190.00
OROUP 14 NO (NOT CORRECTED)
I I I I I
tOO.00 150.00 900.00 SBO-00 400.00
TOTflL niLEflGE 1Or
450.00
500.00
880.00
800.00
-------
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Group 14. Ford 36l CID V8 Engines
Symbol Unit Number
Q
©
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68
83
84
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GROUP 14 NO CORRECTED
200.00
£60.00
300.00
380.
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450.00
500.00
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Ford 391 CID V8 Engines
Unit Number
111
128
129
141
0.00 80.00
CROUP 15 HC
100.00
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TOTflL MILEflGE
980.
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400.00
480.00
800.00
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Group 15. Ford 391 CID V8 Engines
Symbol Unit Number
Q
127
1Z8
129
141
0.00 80.00 100.00 150.00
GROUP 15 NO (NOT CORRECTED)
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400.00
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Symbol Unit Number
Q 127
O 1Z8
£ 129
+ 141
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GROUP 15 NO CORRECTED
200.00 250.00 300.00 350.00
TOTflL MILEflGE *10B
400.00
4EO.OO
500.00
550.00
600-00
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Group 16. CMC 292 16 Engines
Unit Number
52
121
122
123
124
i 1 1 1 1 1 1
100.00 iso.oo too.oo en.oo 900.00 390.00 400.00
TOTflL MILEflGE »10*
0.00 SO-00
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460.00
BOO.00
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Unit Number
52
121
122
123
124
0
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GROUP 16 CO
100.00 150.00 200.00 250.00 300.00
TOTflL MILERGE
350.00
*10e
400.00
450.00
500.00
560.00
600.00
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Symbol Unit Number
Q 52
O 121
A 122
+ 123
X 124
O *
0.00 60.00 100-00 ISO.00
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200.00 250.00 300.00
TOTflL MILERGE
980.
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GMC 350 CID V8 Engines
Unit Number
117
0.00 M.OO
GROUP 17 HC
100.00
150.00
I
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TOTflL niLERGE
930.00
101
400.00
480.00
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Group 17. CMC 350 CID V8 Engines
Symbol Unit Number
Q 116
O 117
D
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980.
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Symbol Unit Number
0 116
CD 117
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200.00 250.00 300.00
TOTflL MILERGE
350.00
400.00
450.00
I
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BOO.00
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CMC 401 CID V6 Engine
Unit Number
79
1 -i 1 1 1 1 1 1 -i 1 1 i
0.00 50.00 100.00 150.00 ZOO.00 Z60.00 300.00 350.00 400.00 450.00 500.00 550.00 000.00
TOTflL MILEflGE *1CT
GROUP 18 CO
-------
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Symbol Unit Number
3 ~^79
1 1 1
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CROUP 18 NO (NOT CORRECTED)
I
BOO.00
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TOTflL MILEflGE
SSO-
4OO.OO
4BO.00
SBO.OO
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800.00
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CMC 401 CID V6 Engine
Unit Number
79
1 i
'o.oo so.oo 100.00
GROUP 18 NO CORRECTED
ISO.00 ZOO.00 £50.00 300.00
TOTflL MILEflGE
350.00
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400.00
450.00
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Group 19. IHC 304 V8 Engines
Unit Number
26
38
46
47
48
49
50
Z
Y
X
*
a
Unit Number
51
55
56
57
58
59
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GROUP 19
l
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100.00
ISO .00
too.oo
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TOTflL MILERGE
300.00
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BSO.OO
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HC
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Group 19. IHC 304 V8 Engines
Symbol Unit Number Symbol Unit Number
D
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26
38
46
47
48
49
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51
55
56
57
58
59
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0-00
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60.00
100-00 150-00 200.00 250.00 300.00
TOTflL MILEflGE
950-00
*icr
400.00
460.00
860.00
BOO.00
GROUP 19 CO
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Symbol
O
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Unit Number Symbol Unit Number
Z6
38
46
47
48
49
50
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51
55
56
57
58
59
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tOO.00 130.00 300.00 330.00
TOTflL MILEflGE «10l
400.00
480.00
BOO .00
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880.00 BOO.00
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Group 19. IHC 304 V8 Engines
Unit Number
26
38
46
47
48
49
50
Unit Number
51
55
56
57
58
59
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CROUP 19 NO CORRFCTED
£00.00 250.00 900.00 360.00
TOTflL MILEflGE *10*
400.00
480.00
500.00
550.00
600.00
-------
6,58".
Group 20. IHC 345 CID V8
Symbol Unit Number
"1
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to
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Group 20. IHC 345 CID V8 Engines
Symbol Unit Number
Q
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15
16
17
18
19
71
72
91 (dropped because of high
initial mileage)
1 I I
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tOO. 00 CM .00 900.00 500.00
TOTflL MILEflGE «10l
400.00
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Group 20. IHC 345 CID V8 Engines
Symbol Unit Number
Q 15
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O 71
4- 72
91 (dropped because of high
initial mileage)
Q
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0.00 50.00 100.00 150.00
GROUP 20 NO CORRECTED
tOO.OO CSO.OO 900.00
TOTflL MILEflGE
350.00
*10l
400.00
450.00
500.00
550.00
600.00
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S'_. Symbol Unit Number S}
g
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3 22
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I £ 24
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2 105
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GROUP 21 HC
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4Q A ^ X Symbol Unit Number S)
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y ife x 4 25
x X X 69
C> 70
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TOTflL MILEflGE *10*
RRnilP 21 CO
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(3 130
O 131
A 132
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Symbol Unit Number
O 130
O 131
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X 134
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+ Symbol Unit Number Symbol
a 22 0
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X 69 ^
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130
131
132
133
134
135
136
137
138
139
140
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450.00
500.00
590.00
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Unit Number
i
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Unit Number
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TECHNICAL REPORT DATA
(Please read Instructions on the reverse before completing)
1. REPORT NO.
EPA-460/5-75-002-b
3. RECIPIENT'S ACCESSION-NO.
4. TITLE AND SUBTITLE . _ , . .
In-Use Heavy Duty Gasoline Truck Emissions
Part II, Surveillance Study of Control Equippe
Heavy-Duty Gasoline-Powered Vehicles
5. REPORT DATE
June 1974
6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)
Melvin N. Ingalls, Karl J. Springer
8. PERFORMING ORGANIZATION REPORT NO.
AR 948
9. PERFORMING ORGANIZATION NAME AND. ADDRESS
Southwest Research Institute
Post Office Drawer 28510
8500 Culebra Road
San Antonio, Texas 78284
10. PROGRAM ELEMENT NO.
11. CONTRACT/GRANT NO.
EHS 70-113
12. SPONSORING AGENCY NAME AND ADDRESS
U.S. Environmental Protection Agency
Office of Air and Waste Management
Mobile Source Pollution Control
Ann Arbor, Michigan 48105
13. TYPE OF REPORT AND PERIOD COVERED
Final
14. SPONSORING AGENCY CODE
15. SUPPLEMENTARY NOTES
16. ABSTRACT
Exhaust emission tests were performed over a period of two and
one half years on a fleet of 152, 1970 and 1971 gasoline-powered trucks
of over 6000 pounds gross vehicle weight, which were being used in the
San Antonio area. During this period, each truck received up to seven
periodic tests for HC, CO and NO by means of a chassis-dynamometer
version of the nine-mode engine-dynamometer Federal Test Procedure. Ten
of these engines received additional tests in order to obtain correlativ
data between the chassis and engine-dynamometer procedures.
17.
KEY WORDS AND DOCUMENT ANALYSIS
DESCRIPTORS
b.lDENTIFIERS/OPEN ENDED TERMS C. COSATI Field/Group
Air Pollution
Exhaust Emissions
Heavy Duty Vehicles
Surveillance
Hydrocarbons (HC)
Carbon Monoxide (CO)
Nitric Oxide (NO)
13B
18. DISTRIBUTION STATEMEN1
No limits
19. SECURITY CLASS (This Report)
Unclassified
21. NO. OF PAGES
439
20. SECURITY CLASS (This page)
Unclassified
22. PRICE
EPA Form 2220-1 (9-73)
-------
INSTRUCTIONS
1. REPORT NUMBER
Insert the EPA report number as it appears on the cover of the publication.
2. LEAVE BLANK
3. RECIPIENTS ACCESSION NUMBER
Reserved for uie by each report recipient.
4. TITLE AND SUBTITLE _,«.! n
Title should indicate clearly and briefly the subject coverage of the report, and be displayed prominently. Set subtitle, it used, in smaller
type or otherwise subordinate it to main title. When a report is prepared in more than one volume, repeat the primary title, add volume
number and include subtitle for the specific title.
5. REPORT DATE
Each report shall carry a date indicating at least month and year. Indicate the basis on which it was selected (e.g.. date of issue, date of
approvcl. date of preparation, etc.).
6. PERFORMING ORGANIZATION CODE
Leave blank.
7. AUTHOR(S)
Give name(s) in conventional order (John R. Doe. J. Robert Doe. etc.). List author's affiliation if it differs from the performing organi-
zation.
8. PERFORMING ORGANIZATION REPORT NUMBER
Insert if performing organization wishes to assign this number.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
Give name, street, city, state, and ZIP code. Lilt no more than two levels of an organizational hirearchy.
10. PROGRAM ELEMENT NUMBER
Use the program element number under which the report was prepared. Subordinate numbers may be included in parentheses.
11. CONTRACT/GRANT NUMBER
Insert contract or grant number under which report was prepared.
12. SPONSORING AGENCY NAME AND ADDRESS
Include ZIP code.
13. TYPE OF REPORT AND PERIOD COVERED
Indicate interim final, etc., and if applicable, dates covered.
14. SPONSORING AGENCY CODE
Leave blank.
15. SUPPLEMENTARY NOTES
Enter information not included elsewhere but useful, such as: Prepared in cooperation with, Translation of, Presented at conference of,
To be published in, Supersedes, Supplements, etc.
16. ABSTRACT
Include a brief (200 words or less) factual summary of the most significant information contained in the report. If the report contains a
significant bibliography or literature survey, mention it here.
17. KEY WORDS AND DOCUMENT ANALYSIS
(a) DESCRIPTORS Select from the Thesaurus of Engineering and Scientific Terms the proper authorized terms that identify the major
concept of the research and are sufficiently specific and precise to be used as index entries for cataloging.
(b) IDLN 1IKIERS AND OPEN-ENDED TERMS - Use identifiers tor project names, code names, equipmenc designator;,, etc. Use open-
ended terms written in descriptor form for those subjects for which no descriptor exists.
(c) COSAT1 FIELD GROUP - Field and group assignments are to be taken from the 1965 COSATI Subject Category List. Since the ma-
jority of documents are multidisciplinary in nature, the Primary Field/Group assigrtment(s) will be specific discipline, area of human
endeavor, or type of physical object. The application(s) will be cross-referenced with secondary Field/Group assignments that will follow
the primary postmg(s).
18. DISTRIBUTION STATEMENT
Denote reusability to the public or limitation for reasons other than security for example "Release Unlimited." Cite any availability to
the public, with address and price.
19.8,20. SECURITY CLASSIFICATION
DO NOT submit classified reports to the National Technical Information service.
21. NUMBER OF PAGES
Insert the tolal number of page:., including this one and unnumbered pages, but exclude distribution list, if any.
22. PRICE
Insert iho price set by the National Technical Information Service or the Government Printing Office, if known.
EPA Form 2220-1 (9 73) (Revtrve)
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