EPA-650/4-75-024-f
Environmental Monitoring Series
GUIDELINES
FOR QUALITY ASSURANCE PROGRAMS
FOR MOBILE SOURCE EMISSIONS
MEASUREMENT SYSTEMS:
PHASE III, LIGHT-DUTY DIESEL-POWERED VEHICLES -
TEST PROCEDURES
*
^
55
^* PRO
\
^
ai
O
/
Environmental Protection Agency
Office of Research and Development
Washington, D. C. 20460
-------
GUIDELINE DISTRIBUTION RECORD
EPA-650/4-75-024-f "Guidelines for Quality Assurance Programs for
Mobile Source Emissions Measurement Systems: Phase III, Light-Duty
Diesel -Powered Vehicles - Test Procedures"
The series of documents, "Guidelines for Quality Assurance Programs for
Mobile Source Emissions Measurement Systems," have been prepared and issued in a
revi sable document-controlled format so that any future revisions or additions
may be distributed to the Guideline users. Individual copy numbers have
been assigned to each volume of the series. These numbers appear on this record
sheet and on the title page of each document. The user of these documents must
complete the "Distribution Record Card" and return it in the pre-addressed
envelope to the address shown below so that automat 1c~di'stributi on for future
revisions may be made directly to the user. Also, notice of any reassignment
of the documents by number and title to other individuals (by name, address,
and copy number) should be sent to the same address.
U.S. Environmental Protection Agency
Office of Mobile Source Air Pollution Control
2565 Plymouth Road
Ann Arbor, Michigan 48105
ATTN: Quality Assurance COPY No.
(cut along dotted line)
DISTRIBUTION RECORD CARD
Guideline
User Date
Last Name First Middle Initial
Title
Address
to Send
Future <,. .
Revisions Street
and
Additions
City State Zip Code
If address is a firm (fill In)
Firm
I have received copy No. of EPA-650/4-75-024-f "Guidelines for Quality
Assurance Programs for Mobile Source Emissions Measurement Systems:
Phase III, Light-Duty Diesel-Powered Vehicles - Test Procedures"
Please send me any revisions and additions of this volume.
-------
EPA-650/4-75-024-f
GUIDELINES
FOR QUALITY ASSURANCE PROGRAMS
FOR MOBILE SOURCE EMISSIONS
MEASUREMENT SYSTEMS:
PHASE III, UGHT-DUTY DIESEL-POWERED VEHICLES -
TEST PROCEDURES
by 193
Harold Wimette, Rod Pilkington, and Tom Kelly
Olson Laboratories , Inc.
421 East Cerritos Avenue
Anaheim, California 92805
Contract No. 68-02-1740
ROAP No. 26BGC
Program Element No. 1HA327
EPA Project Officers:
R. C. Rhodes
Quality Assurance and Environmental Monitoring Laboratory
Research Triangle Park, North Carolina 27711
and
C. Don Paulsell
Office of Program Management
Ann Arbor, Michigan 48105
Prepared for
U.S. ENVIRONMENTAL PROTECTION AGENCY
Office of Mobile Source Air Pollution Control
and
Office of Research and Development
Washington, D. C. 20460
June 1975
-------
EPA REVIEW NOTICE
This volume has been prepared by Olson Laboratories , Incorporated
consistent with the Environmental Protection Agency Quality Assurance
principles and concepts and with the Environmental Protection Agency Mobile
Source Testing Practices at Ann Arbor, Michigan.
The guidelines and procedures are generally applicable to mobile
source testing operations and are intended for use by those engaged in such
measurement programs
It is requested that recipients and users of this document submit any
comments and suggestions to the Project Officers.
Mention of trade names or commercial products does not constitute
Environmental Protection Agency endorsement or recommendation for use.
RESEARCH REPORTING SERIES
Research reports of the Office of Research and Development, U.S. Environ-
mental Protection Agency, have been grouped into series. These broad
categories were established to facilitate further development and applica-
tion of environmental technology. Elimination of traditional grouping was
consciously planned to foster technology transfer and maximum interface
in related fields. These series are:
!. ENVIRONMENTAL HEALTH EFFECTS RESEARCH
2. ENVIRONMENTAL PROTECTION TECHNOLOGY
3. ECOLOGICAL RESEARCH
4. ENVIRONMENTAL MONITORING
5. SOCIOECONOMIC ENVIRONMENTAL STUDIES
6. SCIENTIFIC AND TECHNICAL ASSESSMENT REPORTS
9. MISCELLANEOUS
This report has been assigned to the ENVIRONMENTAL MONITORING
series. This series describes research conducted to develop new or
improved methods and instrumentation for the identification and quanti-
fication of environmental pollutants at the lowest conceivably significant
concentrations. It also includes studies to determine the ambient concen-
trations of pollutants in the environment and/or the variance of pollutants
as ;i function of time or meteorological factors.
This document is available to the public for sale through the National
Technical Information Servicr, Springfield, Virginia 22161.
Publication No. EPA-650/4-75-024-f
11
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INTRODUCTION
The test procedures contained in this supplement document the
1975 light duty diesel emission measurement test requirements presently
in the use at the Ann Arbor facility of the Environmental Protection
Agency. These test procedures comply with Federal Regulations as stated
in the Federal Register. (Refer to Section 3, Volume I, for the listing
of applicable Federal Register.)
All the test procedures applicable to the measurement of
light-duty diesel vehicle emissions are listed in the Table of Contents.
Since many of the procedures listed are identical to the procedures
previously published for light-duty gasoline vehicles (Phase I,
Volume II), they are not included in this supplementary document. Two
procedures specifically written for light-duty diesel emission testing
are identified with the letter suffix D, i.e., (TP703-D, TP707-D), and
are included in this supplement.
The basic differences between the gasoline and diesel emission
tests are (1) the elimination of the evaporation emissions test and
(2) the continuous measurement of hydrocarbons with a heated flame
ionization instrument (HFID), for diesel vehicles.
Both light-duty gasoline and diesel powered vehicles use the
same data forms and computer programs, and are driven over the same FTP
driving cycle.
Since the evaporative emissions test is not performed on
diesel vehicles, preconditioning of the vehicle differs slightly, as
presented in TP703-D. The procedures for the analysis of the exhaust
from diesel vehicles is described in TP707-D.
This supplement is part of a series of publications in a four-
phase program covering Quality Assurance Guidelines and test procedures
for Mobile Source Emissions. The phases of the program are as follows:
Phase I Volume I - GUIDELINES FOR QA PROGRAMS FOR
MOBILE SOURCE EMISSIONS MEASUREMENT SYSTEMS
Light-Duty Gasoline-Powered Vehicles
a. Quality Assurance Guidelines
Volume II - GUIDELINES FOR QA PROGRAMS FOR
MOBILE SOURCE EMISSIONS MEASUREMENT SYSTEMS
Light-Duty Gasoline-Powered Vehicles
b. Test Procedures
iii
-------
Phase II Volume I - GUIDELINES FOR QA PROGRAMS FOR
MOBILE SOURCE EMISSIONS MEASUREMENT SYSTEMS
Heavy-Duty-Diesel Engines
a. Quality Assurance Guidelines
Volume II - GUIDELINES FOR QA PROGRAMS FOR
MOBILE SOURCE EMISSIONS MEASUREMENT SYSTEMS
Heavy-Duty Diesel Engines
b. Test Procedures
Phase III Volume I - GUIDELINES FOR QA PROGRAMS FOR
MOBILE SOURCE EMISSIONS MEASUREMENT SYSTEMS
Light-Duty Diesel Vehicles
a. Quality Assurance Guidelines
Volume II - GUIDELINES FOR QA PROGRAMS FOR
MOBILE SOURCE EMISSIONS MEASUREMENT SYSTEMS
Light-Duty Diesel Vehicles
b. Test Procedures
Phase IV Volume I - GUIDELINES FOR QA PROGRAMS FOR
MOBILE SOURCE EMISSIONS MEASUREMENT SYSTEMS
Heavy-Duty Gasoline Engines
a. Quality Assurance Guidelines
Volume II - GUIDELINES FOR QA PROGRAMS FOR
MOBILE SOURCE EMISSIONS MEASUREMENT SYSTEMS
Heavy-Duty Gasoline Engines
b. Test Procedures
iv
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TEST PROCEDURES FOR LIGHT DUTY DIESEL VEHICLES
TABLE OF CONTENTS
INTRODUCTION
Effective
Section Date(s)
100 GAS BLENDING, FUEL ANALYSIS AND INVENTORY.
101 Preparation of Binary Gas Mixtures . . . .
102 Calibration of Gas Mixtures
200 CALIBRATION
201 CVS Calibration
202 Dynamometer Calibration
203 Gas Analyzer Calibration Curve Generation. . . .
204 Chart Recorder Calibration
205 Temperature Recorder Calibration
206 Barometric Pressure Calibration and Correlation.
300 VERIFICATION
301 CVS System Verification by Tracer Gas Injection.
302 Dynamometer Calibration Verification
303 NO Efficiency Check
304 CO*/H O Interference Check
400 CORRELATION
401 Analyzer Cross Check
500 MAINTENANCE.
600 DAILY OPERATION
601 Log Book Entries . . . .
602 Drift/Noise/Gain/Tune. .
603 Test Vehicle Scheduling.
604 Dynamometer Warm-Up/Set.
700 EMISSION TESTING
701 Test Vehicle Inspection and Acceptance
703-D LA-4 Vehicle Preparation
706 1975 Urban Dynamometer Test - FTP. . .
707-D Sample Analysis of 1975 FTP
709 Vehicle De-Prep and Removal
710 Highway Fuel Economy Preconditioning .
711 Highway Fuel Economy Dyno Test - HWFET
712 Sample Analysis of HWFET
800 DATA VALIDATION.
801 Data Validation.
900 PROGRAM PLANNING AND QUALITY AUDIT
-------
700
-------
EPA TEST PROCEDURE Nu"
nber
TP-703-D page 1 Of 4
SUBJECT
"LA- 4" VEHICLE PREPARATION - LIGHT DUTY DIESEL VEHICLES
Referenc
e FEDERAL REGISTER, VOL. 38, NC
VOL, 39, NC
Responsible Organization
TEST OPERATIONS
). 151, AUG. 7, 1973 Data Fom fto-
). 205, OCT. 22, 1974 701-01; SECTION IV
Computer Program
NONE
Test Witness /REVIEW Performance Interval
MANUFACTURER'S REPRESENTATIVE, EPA CERTIFICATION ENGINEER PER CERT. VEHICLE
Type of Test Report
DATA SHEET
Report Distribution QUALITY ASSURANCE,
CERTIFICATION BRANCH, TEST DATA FILE
Supersedes
NEW
DATA VALIDATION, Superseded by
REMARKS/COMMENTS
ORIGINAL RELEASE APPROVALS
Office Section
Program Mgmt Quality Assurance
Lab. Branch Chief
Lab. Branch Test Operations Chief
Signature
Date
REVISIONS
Change
Letter
Description of Change
Approval
Date
-------
REVISIONS:
"LA-4" VEHICLE PREPARATION -
LIGHT DUTY DIESEL VEHICLES
TEST PROCEDURE
PROCEDURE NO.
TP-703-D
PAGE 2 OF 4
1.0 PURPOSE
To prepare certification vehicles for the Federal exhaust emission test.
2.0 TEST ARTICLE DESCRIPTION
2.1 Test vehicle prepared by manufacturer
3.0 REFERENCES
3.1 Federal Register, Vol. 38, No. 151, Aug. 7, 1973 - 85.175-11
3.2 Federal Register, Vol. 39, No. 205, Oct. 22, 1974 - 85.376-11
4.0 REQUIRED EQUIPMENT
4.1 Chassis dynamometer
4.2 Drivers aid, Varian
4.3 Cooling fan
5.0 PRECAUTIONS
5.1 Assure vehicle is tied down with winch cable
5.2 Inflate tires to 45 psi
5.3 Insure room temperature is within 68 to 86 F.
6.0 VISUAL INSPECTION
6.1 Check for proper set-up of test equipment.
7.0 TEST ARTICLE PREPARATION
7.1 Add diesel test fuel to 40 percent of tank capacity. Fuel must be at
ambient temperature (68-86 ).
NOTE; Technician and witness must sign the "Fuel Log" located in
fueling area.
7.2 Drive vehicle onto the dynamometer.
7.3 Install chocks at nondriving and attach the vehicle winch cable.
7.4 Hook up exhaust vent system to vehicle.
7.5 Place cooling fan in front of vehicle and turn fan on.
-------
REVISIONS:
"LA-4" VEHICLE PREPARATION -
LIGHT DUTY DIESEL VEHICLES
TEST PROCEDURE
PROCEDURE NO.
TP-703-D
PAGE_i_OF *
8.0 TEST PROCEDURES
Test Sequence
101
102
103
104
105
106
Test Description
Data Output
Set inertia weight and hp per manufacturer's
recommendation. Release dyno brake.
Calibrate driver's aid at 50 mph and zero.
Drive the hot LA-4, following tolerances stated
in paragraph 85.075-14 of the Federal Register.
Upon completion of the LA-4 shut-off fan, engage
the dyno brake, remove exhaust vent system, dis-
connect winch cable and remove chocks.
Drive vehicle to soak area, shut-off engine, record
the start time of the twelve hour soak.
Lock the vehicle and return the keys to the
Production Control office.
Driver's
Chart
Date, Time
-------
REVISIONS:
"LA-4" VEHICLE PREPARATION -
LIGHT DUTY DIESEL VEHICLES
TEST PROCEDURE
1 bw 1 1 l\NXX0k \J WlXb
PROCEDURE NO.
TP-703-D
PAftF 4 nF4
9.0 DATA INPUT
9.1 Insure Section IV of form 701-01 is complete.
9.2 Submit completed form and drivers trace to Data Validation.
10.0 DATA ANALYSIS
10.1 Check Section IV for missing data, and required signatures.
11.0 DATA OUTPUT
11.1 Form 701-01 becomes a permanent record of the test data package.
12.0 ACCEPTANCE CRITERIA
12.1 All entries must be complete and signed by the responsible
technician and his supervisor.
12.2 Assure the LA-4 was driven within specified FTP driving limits.
(see procedure #706, sec. 12.0)
12.3 Fuel must be at ambient temperature, 68-86 F, when added to vehicles.
12.4 Soak area must be maintained at 68-86 F. Vehicle must soak for a
minimum of 12 hours from key off to key on, not to exceed a maximum
of 20 hours.
13.0 QUALITY CONTROL PROVISIONS
13.1 If all entries and provisions stated in this procedure have been met,
enter technicians EPA I.D. number on data sheet.
13.2 If soak time exceeds 20 hours precondition the vehicle again.
-------
EPA TEST
PROCEDURE Nur
SUBJECT
SAMPLE ANALYSIS OF 1975 URBAN DYNO TEST -
Reference FEDERAL REGISTER, VOLUME 38,
VOLUME 39, NO. 205, Oct. 22,
Responsible Organization
TEST OPERATIONS
nber
TP-707-D Page l of 8
- LIGHT- DUTY DIESEL VEHICLE
NO. 151, Aug. 7, 197: i Data Form No.
1974 707-01-02
Computer Program
SAQF-.NEWCVS
Test Witness Performance Interval
MANUFACTURER'S EPA REPRESENTATIVE, DATA VALIDATION PER VEHICLE
Type of Test Report
COMPUTER PRINT-OUT
Supersedes
NEW
Report Distribution MAUFACTURER/CERTIFICATION/BRANCH/ Superseded by
DATA VALIDATION/QUALITY ASSURANCE
REMARKS/COMMENTS
ORIGINAL RELEASE APPROVALS
Office
Program Mgmt.
Lab. Branch
Lab. Branch
Section
Quality Assurance
Chief
Test Operations Chief
Signature
Date
REVISIONS
Change
Letter
Description of Change
Approval
Date
-------
REVISIONS:
SAMPLE ANALYSIS OF 1975 URBAN DYNO TEST -
LIGHT-DUTY DIESEL VEHICLE
TEST PROCEDURE
PROCEDURE NO.
TP-707-D
PAOP 2 OF 8
1.0 PURPOSE
To measure the bag concentrations collected by a constant volume sampler.
This exhaust sample is diluted to a constant volume and collected
in sample bags. The collected sample is then analyzed for hydrocarbons,
carbon monoxide, carbon dioxide and oxides of nitrogen by a gas analysis
system. Hydrocarbons in the diluted sample are measured continuously
using a heated flame ionization detector (HFID).
2.0 TEST ARTICLE DESCRIPTION
2.1 Test vehicle equipment preconditioned as outlined in TP-703-D.
3.0 REFERENCES
3.1 Federal Register. Vol. 38, No. 151, Aug. 7, 1973, sec. 85.175-18 (d), 20
and Vol. 39 No. 205, Oct. 22, 1974, sec. 85.376-18 (d), 20
3.2 EPA, Ann Arbor, Training Manual "Light Duty Certification Testing
Procedures."
3.3 EPA, Ann Arbor, "Light Duty Test Operations-," Draft.
4.0 REQUIRED EQUIPMENT
4.1 Constant Volume Sampler.
4.2 Mass Analytical System capable of measuring the following:
4.2.1 Hydrocarbons - FID
4.2.2 Hydrocarbons - Flame Ionization with heated sample line, filter
and detector. (375±10°F)
4.2.3 Carbon Monoxide - Infra-red (NDIR)
4.2.4 Carbon Dioxide - Infra-red (NDIR)
4.2.5 Oxides of Nitrogen - Chemiluminescence
4.3 "Working" gas mixtures analyzed using EPA Primary Standards.
4.4 "Zero Gas", nitrogen and for NDIR, CL for FID, HFID.
4.5 FID fuel - 40 percent hydrogen, 60 percent nitrogen.
4.6 HFID fuel - 40 percent hydrogen, 60 percent helium.
11
-------
REVISIONS:
SAMPLE ANALYSIS OF 1975 URBAN DYNO TEST -
LIGHT-DUTY DIESEL VEHTPy.^
TEST PROCEDURE
PROCEDURE NO.
TP-707-D
PAGE 3 OP 8
5.0 PRECAUTIONS
5.1 Safety precautions should be followed when handling compressed gases.
NO and CO are toxic gases!
5.2 Insure cylinders have at least 200 psig pressure.
5.3 Maximum time for bag analysis is 20 minutes following end of
sample period.
6.0 VISUAL INSPECTION
6.1 Check flow rates and pressures on HFID.
6.2 During the FTP and during analysis mode, monitor all instruments,
gauges, and recorders to assure no "out of spec" conditions exist.
7.0 TEST ARTICLE PREPARATION
7.1 Perform daily start-up on analyzer train. See operating instructions
for HFID system in Attachment A.
7.2 Activate strip chart recorders and check zero/span
7.3 Install sample bags and insure no leaks are present.
7.4 Change CVS and HFID filter (sample) before FTP begins and during
10 minute soak. Also leak check CVS and HFID syster after changing
filters.
7.5 Start ambient temperature recorder.
7.6 HFID sample system and electronics require 24 hours. Preheat sample
line, filter and detector to required set point 375 F i 10 .
12
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REVISIONS:
SAMPLE ANALYSIS OF 1975 URBAN DYNO TEST
LIGHT-DUTY DIESEL VEHICLE
TEST PROCEDURE
PROCEDURE NO.
TP-707-D
PAGE_i_OF J
8.0 TEST PROCEDURE
The 1975 Mass Emission Test results are calculated as a result of data
collected from the following procedural steps.
SECTION 1. ANALYSIS OF CO CO, AND NO BAG SAMPLES
Test Sequence Test Description
101 Prior to starting the first "505" of the FTP
the analyzer operator will calibrate the
analyzers and generate span points on the
chart recorders.
102 After the driver has switched to bags 2 and 4
upon completion of the "505" the Analyzer operator
will deliver "bags 1 and 3" to the analysis
transfer system.
103 The analyzer operator will first analyze the
''background" sample (bag 1) and log the numerical
range and value from chart traces of CO, CO_, HC
NO on form 707-02.
x
104 Step 103 is repeated for the "sample" bag. (bag 3)
105 Counts, mileage and seconds are recorded
for first set of bags on form 707-01, CVS
Data sheet.
106 Record the inlet and outlet pressure of the
positive displacement plum on the CVS data sheet.
During any idle period during the test.
107 Recalibrate as shown in step 101.
108 Upon completion of the transient phase of the
FTP repeat steps 103 and 104 for "bags 2 and 4."
Record on form 707-02.
109 Record counts, mileage and seconds for
second set of bags on CVS data sheet.
Data Output
BKGD.
HC, Defl.
CO, Defl.
CO , Defl.
NO - Sample
x
Deflections,
CO, CO , HC,
NO - Sample
x
Revs, sec
mileage
Inlet pressure
out, pressure
in inches of
fluid as
specified
Deflections,
HC, CO, C02,
and NO .
x
BKGD. and
sample
Revs., sees.,
mileage
13
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REVISIONS:
SAMPLE ANALYSIS OF 1975 URBAN DYNO TEST
LIGHT-DUTY DIESEL VEHICLE
TEST PROCEDURE
PROCEDURE NO.
TP-707-D
Test Sequence
110
111
112
113
114
Test Description
Recalibrate as shown in step 101 for final "505."
Upon completion of "505" hot, repeat steps 103
and 104 for "bags 1 and 3."
Record rev. counts, mileage and seconds for
the third set of bags.
Perform a post calibration of analyzers and
record on chart.
Record the average wet and dry bulb temperatures,
heat exhange temperature and barometric pressure
on CVS data sheet (707-01).
Data Output
Deflections,
CO, CO , HC
NO . BKGD.
ana sample.
Revs., sees.,
mileage
r>»
DB'°S
T °P
Jyr
In. Hg
SECTION II. ANALYSIS OF CONTINUOUS HYDROCARBON SAMPLE
201 Prior to starting the first 505 of the FTP the analyzer
operator will calibrate the HFID and generate span and
zero points on the chart recorder. Also generate HFID
integrator calibration data as shown on HFID data sheet
707-D-01.
202 Check flow rate and sample back pressure. Note:
Adjust span with gain setting rather than adjusting
the back pressure regulator. Set HFID fuel, air, and
sample pressure at valves prescribed for optimum
response and minimum 0_ interferences.
203 Start the HFID recorder with the start of the CVS and
sample pumps.
204 Set HFID integrators to zero.
14
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REVISIONS:
SAMPLE ANALYSIS OF 1975 URBAN DYNO TEST
LIGHT-DUTY DIESEL VEHICLE
TEST PROCEDURE
PROCEDURE NO.
TP-707-D
PAGEJL.OF
8
Test Sequence
205
206
207
208
209
210
211
Test Description Data Output
Turn on HFID analyzer system integrator and mark
recorder chart at the same time as the start of engine
cranking.
At the end of the deceleration which is scheduled to
occur at 505 seconds switch off HFID integrator No. 1
and start integrator No. 2. Mark recorder chart.
Five seconds after engine stops running turn off HFID
integrator No. 2. Mark recorder chart.
Repeat sequences 201 and 202 during 10 minute soak period.
Repeat sequences 205 and 206 for 505 hot start.
Perform post calibration of HFID analyzer and record
on chart.
Record integrated HC results on manually integrated Average
continuous chart for each portion of 75 FTP cycle, Deflection
Determine the average HFID response and range number HC and
for each test phase using the data work sheet. Range No.
15
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REVISIONS:
SAMPLE ANALYSIS OF 1975 URBAN DYNO TEST -
LIGHT.-D.UTY DIESEL VEHICLE
TEST PROCEDURE
PROCEDURE NO.
TP-707rn
PAGE_7_OF J —
9.0 DATA INPUT
9.1 Check form 707-01 (CVS data sheet) and 707-D-01 (HFID data sheet) assure
that all required data has been filled in.
9.2 Assure that numerical deflections of HC, CO, CO_ and NO have been re-
corded on form 707-02 (Analyzer read-out) for each of tfie three phases
of the FTP.
9.3 The Certification Branch representative and the Manufacturer's repre-
sentative will inspect the CVS data sheet, driver's trace and
CVS temp, trace. They will then sign CVS data sheet as valid or invalid.
9.4 Data Validation will validate form 707-01 and submit to Data Branch.
10.0 DATA ANALYSIS
10.1 Data analysis is performed by the SAQFrNEWCVS program.
10.2 Analysis is performed on Drivers Trace as stated in section 12 of
procedure #TP-706.
10.3 Analysis of all other supporting data is performed by Data Validation.
11.0 DATA OUTPUT
11.1 The following information is entered into the vehicle test file.
o CVS Data sheet form #707-01
o Test cell ambient condition, records ( F, WB, DB).
o Analyzer trace
o Drivers trace
o CVS temp, trace
o HFID Temperature trace
o HFID Sample trace and data sheet
o 702-01, DRIVER'S PRECONDITIONING REPORT
o 705-01, VEHICLE TEST AND EVAPORATIVE DATA
11.2 Final copies of CVS data sheet and composite gram per mile results will
go to the Certification Branch and the Manufacturer's representative.
16
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REVISIONS:
SAMPLE ANALYSIS 1975 URBAN DYNO TEST -
LIGHT-DUTY DIESEL VEHICLE
TEST PROCEDURE
PROCEDURE NO.
TP-707-D
PAftF 8 OF 8
12.0 ACCEPTANCE CRITERIA
12.1 Driver's trace must be within limits stated in section 12.0 of
procedure #TP-706.
12.2 CVS temperature trace must be within +10 F of set point for the entire
test.
12.3 HPID temperature trace must be within ±10°P of set point for the entire
test.
12.4 Manufacturer's representative must accept preliminary results as valid.
12.5 Analyzer post calibration must be within ±2 divisions of the initial
span point.
12.6 Bag sample HC must be lower than continuous HC concentration value.
13.0 QUALITY PROVISIONS
13.1 Check tests results on an "audit" basis to assure acceptance criteria
has been met.
13.2 Initiate corrective action if "out of spec" conditions are discovered.
(i.e., Production Control will reschedule vehicle)
13.3 If HFID trace exceeds 99 percent of scale at any point during test
invalidate test and repeat using next higher range.
17
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DATA REDUCTION WORKSHEET FOR LD DIESEL HEATED FID MEASUREMENTS
00
VEHICLE/TEST INFORMATION
TEST DATE: ~
TEST NUMBER: ~
VEHICLE MODEL:
VEHICLE IDf:
DYNO/CVS NOS.:
HFID OPR. ID:
HFID INSTRUMENTATION DATA
FID AMPLIFIER
RANGE NO.
F.S. VDC
F.S. CONC.
V/F CONVERTER
F.S. INPUT Q) 1.0 10. VOLTS
MV F.S. OUTPUT 10.000 HZ
i
JPPMP DIVIDE BY 1. (fo) 100.
(NORMAL SETTINGS CIRCLED)
BAG 1
BAG 2
BAG 3
HWFET
ZERO .
DIV i CNTS i SECS
® ! OD ; ©
1 .
'• ' • •
' i
I
i
i
I
SPAN
DIV CNTS SECS
CD (E. F
t
• • •
i
' !
9 • •.
.
SAMPLE
RNG i CNTS
xG)
•
•
.
SECS
(H)
•
'
•
DIV
CO
•
•
ZERO
CNTS
(i
/
,
SECS
'vl-'
.
DIV
L
—
SPAN
CNTS
..M}
/
^
'
SECS
(N)
0
.
CALCULATIONS: f ilf n A
AVG biV1 « t t
L - I
2 E/F - B/C M/N - J/K
0
CALCULATED VALUES:
BAG 1 AVG DIV = . DIV
BAG 2 AVG DIV = . DIV QQ CHART .
FSTTMATF*
BAG 3 AVG blV * . DIV AGREE?
HWFET AVG DIV * . DIV
G PPMP, *
H
F 1 PPMP 1 1 vm< LSI.'
i .b. ii ni 1 1 AVfi DIV1
F.S. DIV J 1
HFID AVERAGE CVS BAG AVERAGE
CONCENTRATIONS CONCENTRATIONS
FPMP" 1 -
PPMP 2 «
PTfiP" 3 »
PPMP HW «
DIV.
BAG 1
. BAG 2 .
' . BAG 3 .
HWFET
PPMP
IS THE RATIO
HFID/CVS PPMP
GREATER THAN 1.0?
•
•
-------
ATTACHMENT A - FUNCTIONAL AND OPERATING
INSTRUCTIONS FOR HFID SYSTEM
A. SWITCH AND PUSHBUTTON - FUNCTION AND SETTING
1. MASTER SWITCH - upper panel - provides power for:
SECONDARY MASTER SWITCH
RECORDER
TEMPERATURE READOUT
2 FREQUENCY COUNTERS
TIMERS
12 VOLT POWER SUPPLY
24 VOLT POWER SUPPLY for remote valve
2. SECONDARY MASTER SWITCH - bottom of rack - provides
power for:
VIDAR
3 VARIACS
2 front 115V outlets
3. POWER SWITCHES
VIDAR - VOLTAGE to FREQUENCY CONVERTER
3 VARIACS - control heated sample lines
RECORDER
2 FREQUENCY COUNTERS
TEMPERATURE READOUT
FID ELECTRONICS
FID
4. PUCHBUTTONS - controls rotary valve position,
timer start stop/ counter start stop
Cart panel
LOCAL - transfers control to cart panel
REMOTE - transfers control to remote box
TEST - starts counter and timer for selected bag
STANDBY - hold counter and timer on standby
BAG 1 & 3 - selects counter and timer
BAG 2 & 4 - selects counter and timer
ZERO - selects zero gas to FID
SPAN 1 - selects span 1 gas to FID
SPAN 2 - selects span 2 gas to FID
SAMPLE - selects sample gas to FID
Remote box
TEST - starts counter and timer for selected bag
STANDBY - holds counter and timer on standby
BAG 1 & 3 - selects counter and timer
BAG 2 & 4 - selects counter and timer
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5. SWITCH SETTINGS
MASTER SWITCH, ON
SECONDARY MASTER SWITCH, ON
VARIACS, ON (switch inside cabinet)
VIDAR - ON, - Input Selector .1 volt, - Divider
Sitch, 7 10 (switches inside cabinet)
RECORDER - ON, STANDBY
TEMPERATURE READOUT - ON, 115V
COUNTERS, ON
FID ELECTRONICS, ON
FID, ON
PUSHBUTTONS, RELEASED, on local and remote panels
B. CHECKOUT, INITIALIZATION, AND USE
1. Checkout
SWITCHES, ON
PUSHBUTTONS released
COUNTER checkout
RESET, ON
INTERVAL, 10 seconds
DISPLAY, knob c.c.w. (counter clockwise)
SENSITIVITY, CHECK
displays 600 counts
COUNTER calibration (after FID zeroed and spanned,
zero and span of FID should be done with recorder)
RESET, ON
INTERVAL, 10 seconds
DISPLAY, knob c.c.w.
SENSITIVITY, c.w. 1/4, turn adjust as needed
ZERO, depressed - record counts on each counter
SPAN, depressed - record counts on each counter
TIMER checkout
LOCAL, depressed
TEST, depressed (cart panel)
BAG 1 & 3, depressed (cart panel)
if timer is not counting depress timer bar to start
2. Initial test conditions
Panel and Box Pushbuttons, released
LOCAL or REMOTE, depressed
STANDBY, depressed (corresponding to above)
BAG 1 & 3, depressed (corresponding to above)
Rotary Valve, TEST
TIMER, zero
COUNTER INTERVAL, MANUAL
COUNTER MANUAL SWITCHES, EXTERNAL/OFF
RESET, both COUNTER displays and leave ON
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3. Use 75 FTP
TEST/ depressed on appropriate control panel
when CVS sampling begins
BAG 2 & 4, depressed on appropriate control panel
when CVS sampling begins for Bag 2 & 4
STANDBY, depressed on appropriate control panel
when CVS sampling is stopped for Bag 2 & 4
Record, TIMER seconds, COUNTERS reading
TIMER, zero
RESET, both COUNTER displays and leave ON
BAG 1 & 3, depressed on appropriate control panel
TEST, depressed on appropriate control panel
when CVS sampling begins for hot start
STANDBY, depressed on appropriate control panel
when CVS sampling is stopped for Bag 1 & 3
4. Use EPA Highway Cycle
TEST, depressed on appropriate control panel
when CVS sampling begins
STANDBY, depressed on appropriate control panel
when CVS sampling ends
Record, TIMER seconds, COUNTER display
C. NOTES:
If sample/standby, Bag 1 & 3, Bag 2 & 4 pushbuttons
are depressed on control panel which has not been selected,
the units will function normally except that the indicator
lights will remain lighted on both panels for all buttons
depressed.
If sample/standby, Bag 1 & 3, Bag 2 & 4 pushbuttons
are released on control panel which has not been selected,
both control panels will show position selected.
Rotary valve does not light until it is in selected
position.
When selecting a span gas, ZERO GAS must be selected FIRST,
It is not possible to switch directly from R2 span to Rl span
even though panel lights will change to Rl.
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