United States
Environmental Protection
Agency
Office of Air Quality
Planning and Standards
Research Triangle Park NC 27711
EMB Raport 79-DRY-7
August 1979
Air
Material Balance Test
Perchloroethylene
Refrigerated Closed
System-Coin Operated
Dry Cleaners
Emission Test Report
Plaza Cleaners
IMorthville, New Jersey
-------
MATERIAL BALANCE TEST PERCHLOROETHYLENE
REFRIGERATED CLOSED SYSTEM
AT
PLAZA CLEANERS
NORTHVALE, NEW JERSEY
By
Robert F. Jongleux
TRW
ENVIRONMENTAL ENGINEERING DIVISION
P.O. BOX 13000
Research Triangle Park, North Carolina 27709
Prepared for
ENVIRONMENTAL PROTECTION AGENCY
Emission Measurement Branch
Research Triangle Park, NC 27711
April 1980
SN. 95643.000
Contract No. 68-02-2812
Task Assignment #44
-------
TABLE OF CONTENTS
Page
LIST OF TABLES AND FIGURES 11
1.0 INTRODUCTION 1
2.0 SUMMARY OF RESULTS 2
3.0 PROCESS DESCRIPTION 9
4.0 DISCUSSION OF RESULTS 15
APPENDIX A - RAW TEST DATA 13
APPENDIX B - DETAILED TEST PROCEDURES 45
APPENDIX C - GAS STANDARD CERTIFICATION 65
(1)
-------
LIST OF TABLES AND FIGURES
TABLES Page
TABLE 2.1 - SUMMARY MASS BALANCE INFORMATION , 4
TABLE 2.2 - SUMMARY ANALYTICAL RESULTS 5
TABLE 2.3 - SUMMARY FLOWRATE DATA 6
TABLE 2.4 - RESOLVER TEMPERATURE PROFILE 7
TABLE 2.5 - SUMMARY - PLANT THROUGHPUT 8
TABLE 3.1 - SPECIFICATIONS - SPENCER PERCHLOROETHYLENE
DRYCLEANING MACHINE 10
TABLE A. 1 - LOAD TABULATION RECORD 27
FIGURES
FIGURE 3.3 - LAYOUT OF RESOLVER AND DRYCLEANING MACHINE 12
FIGURE 3.4 - RESOLVER 13
FIGURE 3.5 - RESOLVER - FUNCTIONAL DIAGRAM 14
FIGURE A.2 - RUN #1 29
FIGURE A.3 - RUN #1 (CONTINUED) 30
FIGURE A.4 - RUN #2 31
FIGURE A.5 - RUN #3 32
FIGURE A.6 - RUN #4 33
FIGURE A.7 34
FIGURE A.8 - RUN #5 35
FIGURE A.9 - RUN #6 36
FIGURE A. 10 - RUN #7 37
FIGURE A. 11 - RUN #8.. 38
FIGURE A. 12 39
FIGURE A. 13 - BAG #9 40
FIGURE A. 14 : 41
FIGURE A. 15 - BAG #10 42
FIGURE A. 16 - BAG #11 43
FIGURE A. 17 - BAG #12 44
FIGURE B.I- HYDROCARBON ANALYZER SYSTEM 47
(11)
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1. INTRODUCTION
During the week of June 4th, 1979, a two member test crew conducted a
material balance test at Plaza Cleaners, Northvale, New Jersey. The material
balance test was conducted on a commercial perchloroethylene machine and
refrigerated condenser manufactured by Neil and Spencer Limited and distrib-
uted by Spencer America, Inc., of St. Louis, Missouri. The purpose of the
testing was to establish the effectiveness of controlling perchloroethylene
emissions by application of a refrigerated condenser reclaimer. This location
had installed one of the few operational units of this type. The test
request called for a material balance with process parameter recordings, 12
integrated bag samples at the inlet and outlet from the refrigerated condenser,
flow and temperature measurements, and vapor leak detection.
Section 2.0 summarizes the testing results. Section 3.0 details equipment
specification of the process investigated. Section 4.0 discusses the diffi-
culties encountered pursuant to the testing objectives. Appendix A contains
field data sheets utilized during the week of testing. Appendix B details
the testing procedures utilized for testing.
-------
2.0 SUMMARY OF RESULTS
Table 2.1 highlights the information collected for the purpose of a mass
balance. The net usage of solvent for the duration of the test was 10.2
liters (2.7 gallons). The plant throughput was 427 kilograms (943 pounds).
Based on these figures, the mass loss rate from the drycleaning unit was 3.85
pounds of perchloroethylene per hundred pounds of clothes cleaned.1 The cal-
culated mileage was 18162 pounds of clothes per 52-gallon drum of solvent. It
should be understood that these figures are approximations based upon a limited
input of data. The accuracy of this data is discussed more completely in
Section 4.0 of this report.
Table 2.2 summarizes the analytical data collected from the integrated
bag samples. The average removal efficiency for twelve (12) integrated bag
sampling runs was 14.1%. This represents a removal efficiency, which was
lower than the anticipated results.
Because the results were lower than anticipated, a theoretical estima-
tion of removal efficiency was calculated in Section 4.0 (Discussion) based
on a multiple pass system. Based on the information derived from the limited
mass balance study, the calculated solvent mileage (18162) and mass loss rate
(3.85) figures indicate a good overall performance for a commercial dryclean-
ing machine at this location.
Based on this limited testing information and field observation, an
application of a single pass refrigerated condenser reclaimer (similar to the
Spencer Unit tested) to a coin-operated perchloroethylene drycleaning
machine to control emissions would be inappropriate at this time. Applica-
tion may be applicable upon redesign of the resolver, which would permit the
resolver reclaimer system to attain an optional removal efficiency approach-
ing the levels indicated by the theoretical estimate based on a multiple pass
system (+99%).
Weight of clothes measured as dirty clothes before cleaning.
-------
Tables 2.3 and 2.4 summarizes velocity and temperature measurements,
respectively. The velocity measurements tabulated in the appendix and
summarized in Table 2.3 were consistent during the testing. The velocity
averaged 6.5 meters per second (21.2 fps) which calculates to an average
flowrate of 7.1 cubic meters per minute (250 cfm). Table 2.4 lists the
temperature profile of the resolver for two sampling runs. The profile shows
an approximate temperature drop of 15°C (590F) at the start of the dry-
cleaning machine-to-resolver venting cycle. This venting cycle is pre-
programmed by means of an operations card and was a consistent five minutes
in duration.
The only process parameter that varied from one drycleaning cycle to
another was the weight of the clothes processed per load. Table 2.5 is a
summary of the plant throughput data during the test period. The operator
measured the weight of every load and logged this value on a tabulation record
which is contained in the appendix of this report. (Table A.I)
Vapor leak detection was undertaken during the test program on a limited
scale. Prior testing had indicated the effectiveness of a limited number of
inexpensive leak detection monitors.2 Based on this information, an HLD-440
manufactured by TIP Manufacturing was used to screen the drycleaning machine,
the resolver, and associated ducting. The HLD-440 is a portable, battery-
operated electronic halogen gas detector. The complete manufacturer's operating
instructions are included in Appendix B for reference. The halogen leak detec-
tor provides a ticking signal, which accelerated in frequency as a vapor leak
was encountered. The HLD-440 instrument indicated four significant solvent
vapor leaks from the drycleaning machine. The vapor leaks were located at
the muck drain valve, the water separator lid, the valve activated during the
aeration cycle (which allows venting of the drycleaning machine to the
resolver), and a liquid solvent leak located at the base of the dryer drum.
Concentration measurements were not determined on any of the vapor leaks
identified by the screening with the HLD-440 because such a determination was
beyond the scope of task assignment. The sensitivity as a mass rate emission
of the HLD-440 was specified by the manufacturer as one-half ounce per year.3
2Source Test Report "Kleen Kornor, Court!and, New York" - EMB Project #79-DRI-6,
Dec. 1979.
i
o
See Appendix B - HLD-440 - Operating Instructions.
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LIQUID SOAp
ADDITIONS WATER
SIZING •
DEODORANT
^OLID* ftPDITION^ CARBON
DIATOMACEOUS
FARTH
LOSS*
BASE TANK
|~^.ID DISTILLATION TANK
Lt-VLL
SUADE TANK
MhAbUKcncN 1 ,>
TANK FULL
NET USEAGE
MILEAGE
MONDAY
(ml) (oz)
237 8
237 8
«•»— _« —
— — -. __..
GallonsU)
50.0 ~s'~
23.9
25.1
X
TUESDAY
(ml) (02)
710 24'
237 8
473 16
_._ ~__
— —
'
i
|!
WEDNESDAY .
(ml) (02)
710 24
237 8
473 16
118 4
1/2 Ib.
4 Ibs.
THURSDAY
(ml) (02)
946 32
473 16
473 16
• •»•» •» • _
— —
Gallons (2)
60.0 -
12.8
24.9
X
TOTAL
(ml) (02) ,
2603 88
1184 40
1419 48
118 4
5324 80
5.3 liters (1.4 qal .)
~" """
4.5 Ibs.
4.9 liters (13 gal.)
102 liters {2 7 aaV;
(3)
18162^ ;
1) INITIAL MEASUREMENT - MACHINE CIRCULATING
2) FINAL MEASUREMENT - MACHINE CIRCULATING
3) CALCULATED FROM PLANT'THROUGHPUT' - UNITS ARE POUNDS OF CLOTHES CLEANED PER 52 GALLON DRUM OF SOLVENT.
4) PERC CONTENT OF MUCK NOT DETERMINED - NOT IN SCOPE OF WORK.
TABLE 2.1 - SUMMARY MASS BALANCE INFORMATION
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RUN
1
2
3
4
5
6
7
8
9
10
11
12
AVERAGE
CONCENTRATION
INLET OUTLET
(ppm) (ppm)
5650 2350
17750 15500
13000 13750
12250 11650
10000 10250
5750 4250
8000 6300
10000 10250
9950 6490
9400 8020
8150 7550
9450 9500
9946 8822
(1)
REMOVAL EFFICIENCY
(%)
+58.4
+ 12.7
-5.8
+4.9
-2.5
+26.1
+21.3
-2.5
+34.8
+ 14.9
+7.4
-.53
14.1
INSTRUMENT DRIFT
(2) (3) (2)
ZERO(%) STANDARD TOTAL (S)
(%)
8.0 14.3 22.3
0.0 26.5 26.5
7.5 15.5 24.0
5.5 13.0 18.5
0.0 0.0 0.0
1.5 10.0 11.5
1.0 3.0 4.0
1.0 5.5 6.5
1.0 15.5 16.5
2.0 5.5 7.5
0.5 2.0 2.5
0.5 2.0 2.5
2.38 9.36 11.9
(1) BASED ON INTEGRATED BAG SAMPLES OVER HALF OF THE AERATION VENTING CYCLE.
(2) PERCENT DRIFT OF FULL SCALE.
(3) 92 PPM PERCHLOROETHYLENE IN AIR.
TABLE 2.2 SUMMARY ANALYTICAL RESULTS
-------
i
INLET
,
RUN #1
RUN # 2
IRUN # 3
VELOCITY FLOWRATE
mps
6.66
6.69
6.63
RUN £ 4 6.83
i
AVERAGE
6.70
(fps)
(21.85)
(21.94)
(20.77)
(22.39)
(21.74)
ACCM
7.08
7.30
6.91
7.45
7.185
(ACFM)
256.96
258.02
244.24
263.35
(255.64
OUTLET
VELOCITY FLOWRATE
mps
6.40
6.70
5.95
6.35
6.35
(fps)
(20.99)
(21.97)
(19.52)
(20.82)
(20.83)
ACCM | (ACFM)
6.97
7.28
6.50
6.93
6.92
246.27
i
257.06
229.50
i
i
244.83
!
(244.42)
TABLE 2.3 - SUMMARY - FLOWRATE DATA (RESOLVER)
-------
R
U
N
1
R
U
N
2
TIME
1015:00
1020:35
1021:30
1022:30
TEMPERATURE °C
340
13°
14°
150
1023:00 1 16°
1023:30
1024:00
1024:30
1025:00
1107:00
1115:46 '
1116:30
1117:30
1118:00
1119:15
1119:30
13°
18°
190
20°
35°
16°
15°
14°
16°
180
19°
TABLE 2.4 RESOLVER TEMPERATURE PROFILE-OUTLET
-------
MONDAY
WEIGHT
TIME (kg)
i
J0912 17.2
0950 16.8
|(b) 1035 18.1
(Ibs)
38
37
40
1105 14.9 33(b)
J1150 10.9 24
'1230 6.8 15
H400 17.7 1 39
:
I
i
',
DAILY TOTAL- 102. 4
pEEKLY TOTAL-
TUESDAY
WEIGHT
TIME {k9}
0831 17.21
(b)0916 15.4
1004 11.3
1042 8.6
1127 18.1
1207 17.7
1250 6.8
i 1329 15.4
|(s)1405 1.4
1
;
1
226 111.9
(Ibs)
38
34
25
19
40
39
15
WEDNESDAY
WEIGHT
TIME (k9}
0816 8.6
0900 17.2
0940 16.8
1038 15.9
(b)1120 12.2
(Ibs)
19
38
37
35
27
1210 18.1 40
1300 10.0
22
34 1340 12.7 28
3
247
111.5
246
THURSDAY
WEIGHT
TIME (kg)
(Ibs)
0850 2.5; 5.5
0950 17.7
(b)1030 9.5
1130 18.1
1221 18.1
1302 8.6
1400 14.1
1500 12.9
39
21
40
40
19
31
28.5
101.5J224.0
427.3
943.0
|
b- BATCH LOAD
s - SUADE - SPECIAL LOAD
TABLE 2.5
SUMMARY - PLANT THROUGHPUT
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3.0 PROCESS DESCRIPTION
This section details the equipment use in the drycleaning operation at
Plaza Cleaners. The perchloroethylene drycleaning process consisted of two
pieces of equipment; a commerical dry-to-dry perchloroethylene drycleaning
machine and a refrigerated condenser reclaimer. The drycleaning machine had
a rated capacity of 30 kg (65 Ibs). General purpose drycleaning was processed
by the subject machine at a yearly throughput note of 22220 kilograms per
year (49036 Ibs/yr). The subject machine was the only drycleaning unit at
this plant location. The plant was estimated to be five (5) years old, while
the drycleaning machine and resolver were six (6) months old at the time of
the test period.
The refrigerated-condenser reclaimer, called a resolver by the manufac-
turer, was designed to serve the 30 kg (65 Ib) machine. The resolver at this
location was designated as a MAJOR, due to the fact that its refrigerated
bed had twice the volume than its sister model, the MINOR.
The specifications of the drycleaning machine are listed in Table 3.1 as
supplied by the manufacturer. Table 3.2 lists the specifications for the
resolver. Figure 3.3 illustrates the layout and configuration of the system.
Sampling locations for flue gas, velocity and temperature measurements are
indicated. Figures 3.4 and 3.5 are exterior and functional interior diagrams
of the control equipment, respectively. All tables and figures utilized in
this section were adapted from Spencer America supplied literature.
-------
specification
Cylinder
dryweight loading (max)
diameter
depth
volume
load factor
wash speed
extract speed
Still
max distillation rate
Filter
filtration area
flow rate
Solvent capacities
tank 1 main
tank 2 distilled
tank 3 treatment
tank 4 still feed
30 kg (65 Ib)
104 cm (41 in)
66 cm (26 in)
5611 (19.8 ft3)
19 I/kg (3.3 Ib/ft')
33rpm
360 rpm
364l/hr(80impgall/hr)
2.66 m2 (28.6 ft2)
8183 l/hr (1800 imp gall/hr)
5901 (130 imp gall)
1361 (30 imp gall)
1681 (37 imp gall)
1451 (32 imp gall)
Services
max steam consumption
(based on max output 2'/2
loads per hour and max
distillation rate)
max water consumption
compressed air pressure
compressed air volume
electric motors (total)
average electrical
consumption
114kg/hr(250lb/hr)
1360 l/hr (300 imp gall/hr)
6/7 kg/cm* (80/100 lb/in»)
0.06 m'/min (2 ft'/min)
7.3 kW
3.3 kW hrs per hr
Dimensions
A
B
required ceiling height
Weights
empty
with solvent
floor loading
Shipping data
crate size
packed weight (approx)
2.63m(8ft7V4in)
2.62m (8 ft 7 in)
1.63m (5 ft 4 in)
2.33m (7 ft 8 in)
3.05 m (10 ft 0 in)
3150 kg (6950 Ib)
4320 kg (9530 Ib)
1550kg/m2(320lb/ft2)
2.74 x1.85 x 2.82m
(9ftOinx6ft1 inx9ft3in)
3560 kg (3.5 ton)
Spenceif
Leatherhead, Surrey, KT22 7AJ
Telephone Leatherhead 75441
Telex 917010 Spencer Leahead
TABLE 3.1 SPECIFICATIONS - SPENCER DRYCLEANINQ MACHINE
10
-------
IHtSLt .3.
-------
INLET
I7\
OUTLET
SPENCER
RESOLVER
E cvi
vo
t£>
CM
\/
152 (6") DUCTING
SPENCER
DRYCLEANER
o o
00
Mx-xti'^w^m
2.63 m
in
V
UKSOLVER AIR
OUTLET
NOTE: DIMENSIONS FROM FIGURE 3.1 AND FIELD NOTES
, .55 m N
N ' /
>
SOLVENT
LADEN AIR
IN(ET -*$-
( (
' — " UKiCLtHiNiniu riHLniiit
~.35 m
/ N
/*
\
CO
vo
FIGURE 3.3
LAYOUT OF RESOLVER AND DRYCLEANING MACHINE
ADAPTED FROM: SPENCER AMERICA LITERATURE
12
-------
DOOR LOCK J-
DOOR LOCK-f
Spencer
©
L- SOLVENT LEVEL
WARNING LIGHT
RESOLVER (front view)
ADAPTED FROM: SPENCER AMERICA LITERATURE
FIGURE 3.4
RESOLVER
13
-------
TO SOLVENT LADEN AIR
DRYCLEANER FROM DRYCLEANER
WATER OUT
I
i-'l'i'i!
DUST FILTER
STONE CHIPS
REFRIGERATED
COOLING COIL
REFRIGERATED
BED
WATER SEPARATOR
AND
DISTILLED SOLVENT
STORAGE TANK
, SOLVENT DRAIN VALVE
m*--;*y$
f*«<:it':,f~?& . •••''.•:; .-'.'1 }.'.•'••'•!'&• '•'.'::
^sdyfcf!
MACHINE MAIN TANK
(MANUAL)
REFRIGERATION UNIT
(AIR COOLED)
FIGURE 3.5
RESOLVER
doagrsnra
14
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4.0 DISCUSSION
Several areas of the test program require further elaboration. These
areas include validity of the perch!oroethylene concentration measurement,
the accuracy of the measurements utilized for the mass balance summary, and
the calculated efficiency of the resolver-reclaimer.
The analytical results summarized in Table 2.2 were measured with a
Beckman 402 Hydrocarbon Analyzer. Due to the fact that perchloroethylene was
by far the predominate constituent of the flue gas, no separation of constit-
uents, by gas chromatography, was necessary. The instrument employs a flame
ionization detector (FID) to measure the perchloroethylene concentration as
total hydrocarbons. The instrument was calibrated with a certified standard
of perchloroethylene in air (92 ppm). The standard certificate is contained
in Appendix C.
The instrument drift in the field was considerable. The summary of the
baseline drift and the standard drift were recorded for each sampling run and
are recorded in Table 2.2. The instrument drift in total was expressed as a
percentage of chart scale. The hydrocarbon analyzer was set on range selec-
tion of X10 for zeroing and standard spanning. All instrument drift readings
were taken on this range setting. The integrated bag samples were analyzed
on the X5000 range. Normal and preferred analytical procedure required
either a higher concentration standard or dilution of the integrated bag
sample with a known volume of nitrogen. The equipment necessary to implement
either of these preferred procedures was not available on-site and was not
anticipated from preliminary information. The drift of the instrument was
greater than anticipated based upon previous testing experience. A contami-
nated detector was suspected. Subsequent post-field instrument diagnosis
indicated no substantial problem with the detector. After adequate zeroing
with instrument grade air, the hydrocarbon analyzer performed adequately.
Therefore, the conclusion can be reached that the higher concentrations of
perc (10,000 to 25,000 ppm) were the major factors in causing instrument
15
-------
drift. Based upon the instrument drift and the variability of data as
presented in Table 2.2, the validity of data as generated was definitely
suspect. It is recommended that future testing plans consider appropriate
testing alternatives.
The measurements associated with the mass balance portion of the test
program were relatively basic. The weight of the clothes cleaned was measured
to an estimated accuracy of i five (5) kilograms (2.5 Ibs). The liquid
measurements were estimated to be accurate to + 10 ml (1/3 oz). The scale
utilized was not calibrated and its ability to weigh accurately the clothes
according to generally accepted scientific norms was nominal. In order to
increase the accuracy of the mass balance data, an unreasonable time and
financial burden would have been incurred.
The measured efficiency of the resolver-recl aimer was less than antici-
pated. The efficiency reported in the summary represents a limited efficiency,
(14%). The sample was taken over half of the aeration cycle. Due to the fact
that the system was closed, the gas volume within the system was continuously
circulated throughout the course of the aeration venting cycle. Therefore, it
can be reasoned that the recovery efficiency of the resolver for perchloro-
ethylene may have been slightly greater than reported on the basis of the
actual testing data, but not significantly to invalidate the test results.
An estimated theoretical efficiency of the resolver, based on actual
test measurements and equipment specifications from the manufacturer's
literature, consequently is discussed below.
GIVEN the following information:
1) V = 34.9 ft3
2) Q = 250 cfm
3) Dv= 5 min
AND using the equation:
WHERE:
E0 = 1-
Y = Single pass removal efficiency
X = Number of air changes during the
venting cycle.
16
-------
V = Volume of system in cubic feet (ft^)
Q = Flowrate (average) through the system in
cubic feet per minute (cfm)
Dv= Duration of venting cycle in minutes (min)
The upper limit of the theoretical efficiency of the resolver utilizing
this limited and possibly biased set of inputs was calculated as 99.5% for
the test period considering an average dryer aeration/cycle of five (5)
minutes.
This estimate is in need of further justification by further testing and
more accurate testing, exact measurements of the internal volume of the
drycleaning machine and the resolver, and modification of the programmed
duration of the aeration cycle to adequately gauge the influence of time upon
removal efficiency of the resolver.
17
-------
APPENDIX A
RAW TEST DATA
18
-------
ENVIRONMENTAL
ENGINEERING
IVISION
TRAVERSE POINT LOCATION FOR CIRCULAR DUCTS
12"
LANT
PLAZA CLEANERS
6/5/79
SAMPLING LOCATION OUTLET FROM RFSOI VFR
JSIDE OF FAR WALL TO
OUTSIDE OF NIPPLE, (DISTANCE A) 6"
INSIDE OF NEAR WALL TO
OUTSIDE OF NIPPLE. (DISTANCE B) _Q1! _
TACK I.D., (DISTANCE A - DISTANCE B).
NEAREST UPSTREAM DISTURBANCE _
BAREST DOWNSTREAM DISTURBANCE _
ALCULATOR .IflNRI FIIX _
6"
— - «
t|
R
E
S
0
L
V
E
R
SCHEMATI
. .
OF SAMPLING L(
J
DRYER
3CATION
TRAVERSE
POINT
NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
i
FRACTION
OF STACK I.D.
2.1
6.7
11.8
17.7
25.0
35.6
64.4
75.0
82.3
88.2
93.3
97.9
STACK 1.0.
6"
-611
6"
6"
6"
6"
6"
6"
6"
6"
6"
. 6"
PRODUCT OF
COLUMNS 2 AND 3
(TO NEAREST 1/8 INCH)
."426
.402
' .708
1.062
1.50
2 . 1 36
3.864
4.50
4.938
5 . 292
5.593
5.874
19
DISTANCE B
_ _ .
__
__
__
TRAVERSE POINT LOCATION
FROM OUTSIDE OF NIPPLE
(SUM OF COLUMNS 4 & 5)
.5
.5
.75
1.0
1 .R
?.?5
•* R
4 5
4.Q
R.?R
5.5
5.5
-------
ENVIRONMENTAL
ENGINEERING
DIVISION
TRAVERSE POINT LOCATION FOR CIRCULAR DUCTS
LANT PLAZA CLEANERS
6/5/79
SAMPLING LOCATION INLET TO RESOLVER
ISIDE OF FAR WALL TO
OUTSIDE OF NIPPLE. (DISTANCE A) 6"
INSIDE OF NEAR WALL TO
OUTSIDE OF NIPPLE, (DISTANCE B) 0"
TACK I.D.. (DISTANCE A - DISTANCE B) JL!1__
NEAREST UPSTREAM DISTURBANCE _ 3-8 E-
BAREST DOWNSTREAM DISTURBANCE.
ULCULATOR
E.
1 " 1
•i JL..._ '
R
E
S
0
L
V
E
R
i
,,.
DRYER
SCHEMATIC OF SAMPLING LOCATION
"TRAVERSE
POINT
NUMBER
. 1
- 2
3
_•» 4
5
6
7
8
"~ 9
10
~ 11
12
f»
1
»—
*
f - .....
r-
r-
FRACTION
OF STACK -1.0.
7.1
6.7
11.8
17.7
25.0
35.6
64.4
75.0
82.3
88.2
93.3
97.9
STACK 1.0.
fi"
ff""
6"
6"
6"
6"
6"
6"
6"
6"
6"
6"
PRODUCT OF
COLUMNS 2 AND 3
(TO NEAREST 1/8 INCH)
*126
.402
.708
1.602
1.5
2.136
3.864
4.50
4.938
5.292
5.598
5.874
•
20
DISTANCE B
— _
__
__
__
_ _
_ _
_ _
—
—
--
--
-
TRAVERSE POINT LOCATION
FROM OUTSIDE OF NIPPLE
(SUM OF COLUMNS 4 & 5)
.5
.5
.75
1.0
1.5
2.25
3.8
4.5
4.9
5.25
5.5
5.5
-------
ENVIRONMENTAL ENGINEERING DIVISION
VELOCITY TRAVERSE
PLANT
DATE 6'/') ft ( r sfpc, -> <; 5•/*'J
LOCATION
STACK I.D. k"
BAROMETRIC PRESSURE, in. Hg C^t
STACK GAUGE PRESSURE, in. H;Q -f c
OPERATORS ^Q^klEiX. /C LI
INLET
SCHEMATIC OF TRAVERSE POINT LAYOUT
TRAVERSE
POINT
NUMBER
A-i
A-;)
A - '.
/\ - H
A - -V
A-t
A :/
A • '/i
A °!
/i i o
..i • \(
rA - 1 .-'
AVERAGE
VELOCITY
HEAD
(Aps), in.H20
iHS
.iH,S
.iM
IM
i^r
i T, C
.is'
. i ")
.i7s"
. i*s
. i^ir
. m<'
.H?»
STACK
TEMPERATURE
(T$), °F
as"'c
IH°C
^M"C
:.v 3" c
:i A£'i'
;; V '
-j A'C,
"i. '-C\
-.r-s'v..
•rjH"/-
"j ir'i
'^.'rv.
XS.'i i-
TRAVERSE
POINT
NUMBER
b-i
^-")
ii- s
i.-, t
i.\ <
IJ.-C,
ki-v
lA - v
IV- 'f
>\ (O
tV I
\s-p
AVERAGE
VELOCITY
HEAD
(Ap$), in.H20
,1
. 1
^\\\
i\i
t^s"
iH-j
. i "/
.!'/<>'
.'IS
..XtS
.;^s
/. \'-7
tS°(
STACK
TEMPERATURE
(Ts), °F
'V 4 "e
-, M°o
•-) irc
'; lf C
'^ 'i"L
' j '-i."C
) ->"^
-; Vf .
'.} :V'C
•-j.X0^
•J S'C
•-; VJ(^
j/6.M'c
21
-------
PLANT V\^-. .-.. k A.-..
DATE t.J- .)-,•< (c-i
LOCATION rA .AVcV
STACK I.D. hi
BAROMETRIC PRESSURE, in. Hg
ENVIRONMENTAL ENGINEERING DIVISION
VELOCITY TRAVERSE
OUTLET
's >' -.
STACK GAUGE PRESSURE, in. H2Q - 1.0
OPERATORS
SCHEMATIC OF TRAVERSE POINT LAYOUT
TRAVERSE
POINT
NUMBER
k - \
A -3
(\- i
'•^1
/A ^
A-4
A->
A-%
A-«i
A -10
/V-n
A -Vi
AVERAGE
VELOCITY
HEAD
(Aps), in.H20
,. i ~-ss'
,,\'\<
.iHO
.ixC
. i ^ <
. ^:is
.i"<0
.I Mr
.IMS'
_\u
,t~)^
„ i ** r>
.v^H
STACK
TEMPERATURE
(Ts), °F
1C ' v.
lf,'T
,£/<-.
r>"»..
i » c t
ii"^
Wc c.
u°c
0°C
» ^°<-
iHu^
t^cL.
»\.s°c
TRAVERSE
POINT
NUMBER
AVERAGE
VELOCITY
HEAD
fcps), in.H20
STACK
TEMPERATURE
(Ts), °F
22
-------
ENVIRONMENTAL ENGINEERING DIVISION
VELOCITY TRAVERSE
OUTLET
VA*,...v....*,-
?LANT__t
DATE
LOCATION
STACK I.D..
BAROMETRIC PRESSURE, in. Hg ~£
d.
WP.o'N
STACK GAUGE PRESSURE, in. H;Q - 1.0
OPERATORS ^^Gtfeo'/ /CotoVrft,
TRAVERSE
POINT
NUMBER
A^i
A ••*
A •'•>
,-i -(
A-S'
,\-t*
A -7
J\ •»'
,V '"I
f\ 10
^- i(
.{-.;).
AVERAGE
VELOCITY
HEAD
^ps), in.H20
.\V1
M0'1
..M-;
.^{0
c,v/
./V7
j-m
JSt
.iVfO
i7i
\-/\
A'1\
..is-i
STACK
TEMPERATURE
(Ts), °F
r^HV
M4CC-
^^v..
^M'X.
'i M^C
:;.'-/ic
•J .H*C
'"J H''C.
').H'-U
••^.s'< .
• ;»^'••/•"{.-
JLM.V^
SCHEMATIC OF TRAVERSE POINT LAYOUT
TRAVERSE
POINT
NUMBER
b- \
K--i
( ' - :^
\\-H
^
K-C.
l:\-/
ft-w
(;--f-'i
tvir:
f',-l(
(Vi)
AVERAGE
VELOCITY
HEAD
(Ap$), in.H20
-.^^
. t"S.'.)
\-\"7
. i"*"^
.r<>v
,»^'n
^0
.rs?f
,.is-l
„ i'»j>
.ia'^
.18^
.\4%
STACK
TEMPERATURE
(y, °f
'. 4f C
;^H"(
A.H'"(..
'/ VlV-
'".' .* •' ' 'v
;vi^
.Q^T
•;;.-/s:
> 'v-x
; r-V
•' J •*, ' --
•• ; .V^-
:.:-:vr.
3LXtV
NOTE: (RESOLVER APPARENTLY NOT FUNCTIONING PROPERLY - NO TEMPERATURE CHANG^
23
-------
ENVIRONMENTAL ENGINEERING DIVISION
VELOCITY TRAVERSE
3_>=
PLANT _E
DATE I
LOCATION
STACK I.D. fc"
BAROMETRIC PRESSURE, in. Hg.
STACK GAUGE PRESSURE, in. H,
OPERATORS.
'L<\
TRAVERSE
POINT
NUMBER
4-\
/\0_
/V\
A-M
,u
,-U-
.4-7
,1^
A °i
4 MU
.,4 -u
i
,-| !','
AVERAGE
VELOCITY
HEAD
(Aps), in.H20
. rfv*
..-/{ V
, j C. 1
.id
,. IC'A-
,. i'i,'S
. . ', £,
,. i $• I
.\1l
. i 1O
,,/D
.,U
.isf
STACK
TEMPERATURE
(Ts), °F
' ) <, -'l
• *^ f
,} '-> ' .
^ ^.r<.
-.:t.»'(.
j ^;,C'"
•:,i'>lv
•^.-•'•v.
•» —^
0,(,H-
•^^••e
•>.;5tl''.
;-'/"'V'
'i'r''/ .
3.t.0^.
^ - ~l
' \
9 -A
INLET
SCHEMATIC OF TRAVERSE POINT LAYOUT
TRAVERSE
POINT
NUMBER
I :. i
V\ )
V\- \
t'.-j
4-V-S
&'U
&>•"!
j.yr.
O' l|
(V 10
R-U
v,-iO
AVERAGE
VELOCITY
HEAD
r\H
,m^
•urC
o.«jlx.
-;..5"-'-
^
-------
t r+v*
ENVIRONMENTAL ENGINEERING DIVISION
VELOCITY TRAVERSE
PLANT pWyy,-> C.Wxv !'.-•'
DATE
LOCATION _
STACK I.D._
BAROMETRIC PRESSURE, in. Hq 3&.Q5
V i
b"
STACK GAUGE PRESSURE, in. H20
OPERATORS 'vTOfrkl-fcO* /CO^STft^rVlKlH
SCHEMATIC'OF TRAVERSE POINT LAYOUT
TRAVERSE
POINT
NUMBER
H -i
yi "J
,-A \
.'V- ;;
,/\-C
/j-c.
A--;
.A -','
A«'l
4-(o
/• - ; •
/.: »".•
STKT\C
AVERAGE
VELOCITY
HEAD
(Aps), in.H20
..O^'l
CVKi:^
.ri'lO
\ C'O
- it">S
it^
t MO
, IS.)
..i 'M
!"<(.>
. i'5 •
• 1 1 '•
-. 'i ':•
r \.~V
A '^'
STACK
TEMPERATURE
(Ts), 8F
Xi"'T-
5-5"<.
,\(."L •
:.}. s "V. -
•) <:,l< .
.) ••; <:-'' -
•j q"C
j.'-i'4-"
.,',MrC
'V-'-i'c
•/^•O...
•K-^C.
aH.l \,
TRAVERSE
POINT
NUMBER
I\A
A-i
/i s
/i M
/. s
/I U.
/' " 1
.•i • *
>•! - 'l
.••'i "it;
/i Mi
/-i-n
STfTT^C
AVERAGE
VELOCITY
HEAD
(Aps), in.H20
,\lTS
., I C ^
. i U
f t'.iA
1 1 '•*>
r i > ,>.
1^1
.. rv/
. i's'^
.i^ir
, ^(1
, i.1-/'^
-l.o
. I -1M
STACK
TEMPERATURE
(Ts), °F
i "V ' C
p"^
n c c.
ii^:.
, >*<"•
/ > ' ^ '
/>%.:.
r^';c
< ':••(..
.. •>•<•'',-
1 '•) I..
;/.'r_.
/'.'• \'_,
-\ c< «• •
I ) , ! (
25
-------
PLANT PW.-/.. ^'
DATE U/>/-?l
LOCATION A' ,-.WV \
VELOCITY TRAVERSE
jBi*8Bm
v«.,v. , r x SAMPLE __ i^ r^
/ .. ... . •> LOCATION 1
V. \ JL •; "•• 1
STACK I.D. 1*"
BAROMETRIC PRESSURE, in.
STACK GAUGE PRESSURE, in
OPERATORS -JOf^L£i
HP 3c,o^
. H?O t a • 3
J/ / CO«>i3lKi^Air^f crui
\
VE
LR
flATIC OF TR
INLET
* , OUTLET
^smm^^s^ /
...-T-r^j... .^ M. ...
-f Jtsl 1
SAMPLE
LOCATION DRYER
VERSE POINT LAYOUT
TRAVERSE
POINT
NUMBER
A \
\ j
/V-!>
A -4
A -CJ
>A (,-.
•\- /
A - c»
•A '\
r\ t()
rl 1)
,'\ !J
STPsHc
AVERAGE
VELOCITY
HEAD
(Aps), in.H20
.. \ v;
. i'\s
»•'/»"
,,r7,-\'
,. I ^*','
..i':S<
_i«l
.. iS j
"7 .-J
"x*.'!1
">\ !-V
"."'.'y
i 3.3
.UoS
STACK
TEMPERATURE
(T$), °F
, . c> •••
'6 •> I'
'i'.V f-
«,s° !-
b/>" f
v, :;'' r
v> ^' <:
"s '^' V
/^ ^- Y
'AJ" v
*«'•• f
'rtl" 'f
*>'- V
^lfii V
^/>"p
TRAVERSE
POINT
NUMBER
A \
A -'a
A "S
/-(-'<
A--'.'
A.-e,
/\-7
i\ *
A -*i
A -1C
,'i-tt
/^-r;
37-AVU. .
AVERAGE
VELOCITY
HEAD
(Aps), in.H20
. t--*,?>
.\\H
..\Mfc
v\M'c>
-i^-n
• \4C\
.^\«iC
.. («-!%•
,JM<^
. IMS
. ,MV
. i Htfi~-
-,r;f
'/)'/'
- //'•/'
>.-)'i'r
,^;/r
~:O'r
•-/y/-'-
">o/rr
EPA (Dur) 233
4/72
26
-------
1010 CLIFTON AVENUE
CLIFTON, NJ 07013
201 472-9300
ine Products
Washer No.
Week Beginning
Week Ending —
1
2.
3
6
7.
,^te-
t
11.
12.
13.
14.
15.
*•
17,
•i
18.
19.
20.
Monday
FFA Det %
Solvent
Filter Pr
Det. Ad
Misc. Pr
Adde
Solvent
Pounds
J®
••57
^V
/s
3*7
3^
o'*y
}«£
/f
H-o
35
/J+
^ \
5^
Temp
ess Ibs.
ded oz.
3d.
d oz.
Added
-rf/Af_
^ 12-
^T x*1*^
///£><"
// ;-7
//; tH
/LCO
i:l*\
v» ^*
-. *^* t /
-— gP5r"I^T
Tuesday
FFA npt %
Solvent
Filter P
Det. Ad
Misc. Pr
Adde
Solvent
^7^
Pounds
r
^g
^v
"^ >
r±fi\
^D
5_**?-^»
^-C
IF
r
Temp
ress Ibs
ded oz.
od.
d oz
Added
!
oS&IHon
f- 14
°\\^
\i>lt
\ \\ '.'^0
11' \0
p-
\
**•
Wednesday
FFA Det %
Solvent
Filter P
Det. Ad
Misc. Pr
Adde
Solvent
t \ ' >
Pounds
*-•- ;
k. .
^% *^\
o /
^KL
Iff)
r
"! £) f^\
-""O X
Temp
ress Ibs.
ded oz.
od.
d oz.
Added
ci&Siion
p;.~/9
^''<£)
-
11 :i (
!"-0^-
-£?9
*&&£)
TABLE A-l
Thursday
FFA Det %
Solvent
Temp
Filter Press Ibs.
Det. Added oz.
Misc. Prod.
Added oz.
Solvent
Pounds
LOAD TA
Added
dSQLien
BULATION RE
1
FFA
Solvent
Filter P
Det. Ad
Misc. Pr
Adde
Solvent
Pounds
CORD
:riday
.. Det %
Temp
ded oz
od.
Added
Ci^ife'an
1
Weekly
Summary
DETERGENT
Det Uied
Stock Used
SOLVENT
Af Sfort Gais.
Delivered Gal».
Total Gali.
At End Gali
U»d Go's
COSTS
Gali. Solvent
Detergent
Per Cwt _
TOTAl POUNDS
FOR WEEK
-------
APPENDIX A
STRIPCHART RECORDINGS
Beckman 402
Plaza Cleaners
June 1979
-------
... L.
RUN #1" i
6/5/79; !
Plaza Cleaners :
Northviale, New Jersey
CVJ
o:
-------
j-
1
i
1
1
'i <~> n
1 --fV—
i, .,
i
i ~
i
i
J
[
i
i
j
!
- -• I
. _ L . . 1
90
7
i
— . . . f
i
i
i i
• 1
o
o
=»=
n
-------
^M^M^^^M*! W " * •* » j
-.^.--Zf——-^
T
~i
6/5/79 j
flaza. Clejiners
Northvalej New Jersey
90
-•==¥^
70
6.0
50
... i. ....
... .. ,
— I
..J ,.
_j
=«=
Z3
UJ
cc:
CO
oo
-------
co
oo
oo
or
=>
ca
-------
RUN #4 !
6/6/79 |
Plazi Cleaners
-North vale, Nev* Jersey
•RJ ! !
- • J
4-
e^
c\
—tts*
=%£
=«*=
z
^3
a:
vo
ro
CO
-------
Bag Background Check/Nitrogen Blank
6/6/79 t ••!.
Plaza! Cleaners ! \ . \
Northyale, New Jersey . i !
i
RJ i
i '
i . , -
..„._ . . . . . . j . .., . . ,
; i||
i •
: : i
i ' 1 ! ;
. i . • ' " : ~ ! ' :
! r - '
'''.'• i ! i i
— i- ----- ...... • ;
. ___ 1 1 "• -' ' • i : 1
; ii'.
' • !
! 1 ' !
1 i !
! 1 . ' 1 i
.i .:. ; . . i _ . . . . :
i i !
..... . . ....... 1 . .
i . :. L ..
_^J
JL.
r~
•>i
_i
i
i
_4
a:
CD
-------
)0
90
BO
i S> ; 4
60 .'-.0 4,0 • 3.0 • ?.0 10 f 6
RUN
6/6
Pla
Nor
RJ
#5
/79
za Cleaner
thvale, Nt
-; , -
"S
iw Jersey
.
*&&er
: ;
O^TV^TX. S"
-------
i
30
|-- ; --
i
!
i
__..!....
, !
i
i (
30 7J-
1
1 1
I i
$76/79
Plaza Clea
1
nersj
NorthvaleJ New.Jers
>.y~
RJ 1
i
1
! :
.
;
; i
[
'
50 5p 4
- •* - —
!
!
0
•
__
•
3
•
r""
i
l
- ••: j • = .
t
!
j
. ^ \
. ^ 1
": "1 '
r
.-JfsW";
J
0 2
1
_
[1 j
- r*
1
... —I
1
0
1
i-D
VO
oo
ft
Of^
-------
J'J
•£
r
|
h: ] i
i i
i
i '
: i
i
1
!
j
• •••- • - - ---I ---.
• i
i i
'• i
i
i i
£_i^-x-;
i ^1
1 j
t
j
'.
• I
--, •••_•!••'•••
— — — "•"• ~ — ~*T~^ i
RUN #3 |
•" -676/79J-" ; -i-- -- - -
Plaza Cleaners
Mnv*thualp New uersev
1 1 ' i '
RJ :
1 i :
1 ^ ' *
\
!
t i
i
\ i
1 !
. . . _ . . .
j
_c>vn^T X / *>°Q>
\
\ \
i
! j
. . . ^-.. -_ . ._ .
,
,
I
> ;
i
; i i
i 1
1
i
I
i
) i
! i— • •-- ! ' -
jf-'SfM'^
J-. . .
1
I
i 1
• i
, p <>?**>
\ . 1
1
.T>*r£
^E^D/
^°
: ' I '
: ! i i^fXfe >i
/ttro o
2
OC.
cs
ro
-------
90 80 ' i ; 7
i ' 1 ' • •
~" "t • "*"' r~*
" " L~ • i " "~
!
t I
! i
i j
i i
i
1
i
1
- •• - t- - —
i
1 ; i
0 60 50 -10
•'•• 1 -<^~T
RUN #81 ; i
6/6/79: 1
- Plaza Cleaners ;
Nprthvale, New Jersey
j • !
1 i i
' ! i
— T--J- -; I
t
j i
i ! ;
i
, • |
1 ^ '
- i •- ;
1 - : j -
i
1 ! • •
t • '
! ' !
_. , . j.
30
20
10
*u
-.-.-.J[
r~
J
CO
=«=
CO
CO
u
OC
CJJ
-------
6/7/79 - - - - ;
Plaza Clearters
NpFthvale,JNJ - - |
Vjipor Leak lldentific^itioa
r
M
j
fco^xrr
-------
22.
4
80
'•70
SO
50
40
6/7/79 |
Bag #9 j
Plaza Cleaners
Norjhvate", NJ
RJ
2.0
1
=*=
CD
CQ
t—I
•
et
\
-------
6/7/79 ; . ,
Plaza Cleaners
Northvale, NJ :
Vapor Leak Detection
a:
C5
i—i
u.
-------
T
I
6/71/79 !
Bagj #10 !
Plata CTeanefs
NorjthvaTe, N
-------
>0
I
L
-------
DO
6/7/79
Bag|i2._
Plaza Clehners
iNorth valet, NJ
"' i ••
RJ
90
30
70
GO
50
40
t
jjgj- 5WA
u
. J-
/:&
CD
-------
APPENDIX B
DETAILED TEST PROCEDURES
45
-------
ANALYTICAL PROCEDURE - PERCHLOROETHYLENE
The following procedure was used to analyze the inlet and outlet
integrated bag samples at Plaza Cleaners test site. Figure B.I is a schematic
of the hydrocarbon analyzer. A Beckman 402 Hydrocarbon analyzer was used in
the field van while on site. Aluminized gas sampling bags were transported
to the van for analysis immediately after sampling. The hydrocarbon analyzer,
which operates on the principle of flame ionization, was calibrated with a
92 ppm standard and a zero standard prior to and after every sample run. The
range used for the calibration was X10 and the range used for analysis was
X5000. The sample and standard were introduced to the FID analyzer by means
o.f an auxiliary pump from a gas sampling bag. A 40% hydrogen in helium and
THC-free air were the gases used to fuel the instrument. The sample, air,
and fuel pressures were regulated at 2, 10, 20 pounds per square inch (psig),
respectively.
46
-------
<«". Bar
Beckman 402 Hydrocarbon Analyzer
Air Cylinder Fuel Cylinder
STRIPCHART RECORDER
.Figure B.I Hydrocarbon Analyzer System
-------
VELOCITY AND FLOWRATE DETERMINATION PROCEDURE
The velocity and flowrate determinations conducted on-site were performed
in accordance to EPA reference Method 1 and Method 2, (text following) with
modifications implemented to compensate for the small diameter (6-inch) duct
where the velocity profile was taken. The modifications in the standard
procedure included the use of a small (9-inch) S-type pi tot tube and a sepa-
rate thermocouple to measure the flue gas temperatures. These modifications
were implemented in accordance with recommended protocol.3
VKt.oriTV TIMVCI:. from a sfation-.u'v smirrfi, a itirrtstin-miMttstte wltt-i***
I IIP rilliient Mr.-.im Is flowing in a known ilinvliiMi h
•••livii'il. unit ill-- 1 ros.s.5.rii>iii of tin.- >|nok l.< ili\ iiliil lulu
fl t>i!Mil»i>!' of C'IIIHI urc.is. A (ravvtv* pijtnl ift tlirli livatofl
within tanh <>t ilii'Ki: I'nnnl nn-ns.
1.2 A|i|ili.'ftl>ility. This un'tlioil Is ti|/|>lioaM^ !<• llon'-
Jnx K)1n Mri'iint.s in ilurts. stai:krt, anil Otiiit. Tlic iu<*thtfj
<~.uinot l^tuu-il tvlifii: (1) now lscy< loiiioorswiilinn (MX
Kn'lion ?.•>). (:>) n alnc-k is small. >r tlniii cl»ui o.:»l nirli-r
W In.) in Oianii-U'r, or 0.071 in' (113 In.-) in rnits-arv-
llonnl ntvu, or (:>) the mcasnroinrtu sii.' H II-M ilmn two
ftfnck or dnrt diAiii^toi's down.s(rfMin or l^ss ilian ft luilf
ilimnctei upstr<-ain from ft (low ilisluilKiwc.
Tlio iri|niivinrn!!> of this mptliod must ho iniuuiliwl
lirfi>r« cnnsimttioi! of a m-\v faoilily from vliicli . uiisslon.t
asure<1; failure to do so i)*ay ii-i|iihvsnli.«cf|iii*nt
is to HII- slrn-k or (litviatinn fn>Mi Hi.- slttmUnl
1. Crs*^ involving vatiants ftvc ^ubji't-.t to ft|>-
liruviil )>>• tlic A'linlni.'iirnKir, I'.S. Kiivminnirntnl
3. }'in(«turc
LM Si-Wlion of Mi •a.iiircinpiit glif. h'nr>;|.:in(; nr
v<*toirjiy in^asuitMnrnt is purfoi-nioO ut A rite lorjfi'il at
li-nst i-ijlil stafk or rluot Oinnictois »!n\vnslr.'ain tnxl two
dinniPli'i.s ii|islr>?aiu fioin any Dow iliSMiilisn.v stH'li in
n InMiil, ox))ansi,>n, or conn -•union in^lic slack, nr from a
vl;lbl« fla<:ii^. Jf iiMi'.w.iry, an a!irrnativr loraiimt niny
l>e !,) sliall lie cn'.:iiUlfil from th*
tollowiiiK rfjiialion, to
-------
STATIONARY SOURCES
121:1557
50
0.5
DUCT DIAMETERS UPSTREAM FROM FLOW DISTURBANCE (DISTANCE A)
1.0 1.5 2.0
2.5
T
T
o
D.
UJ
V)
CC
txi
5 .30
K
o
cxr
UJ
§ 20
z>
s
? io
DISTURBANCE
MEASUREMENT
£- SITE
DISTURBANCE
* FROM POINT OF ANY TYPE OF
DISTURBANCE (BEND. EXPANSION. CONTRACTION. ETC.)
I
I
8
10
•x
DUCT DIAMETERS DOWNSTREAM FROM FLOW DISTURBANCE {DISTANCE B)
Figure 1-1. Minimum number of traverse points for particulate traverses.
where, /.-length ami l»'=wi
-------
1:1558
FEDERAL REGULATIONS
0.5
DUCT DIAMETERS UPSTREAM FROM FLOW DISTURBANCE {DISTANCE A)
1.0 1.5 2.0
2.5
50
I
40
o
p-
30
20
10
\
T
A
.t
t
I
B
i
1
—
_.
j
1
^
'DISTURBANCE
MEASUREMENT
£- SITE
DISTURBANCE
I
_L
3 4 56789
DUCT DIAMETERS DOWNSTREAM FROM FLOW DISTURBANCE (DISTANCE B)
10
Figure 1-2. Minimum number of traverse points for velocity (nonparticulate) traverses.
2.2.4 Velocity (Non-Partlculato) Traverses. When
velocity or volumetric flow rate is to be determined (hut
not nai ticulate matter), the same procedure as that fur
partvculate traverses (Section 2.2.1) is followed, except
that Figure 1-2 may bo used instead of Figure 1-1.
2.3 Cross-Sectional Layout and Location of Traverse
roints.
2.3.1 Circular fitovks. I-ocale the traverse points on
two penicncHcular diameters according to Table l-'2 and
tlio cxampli) shown In Flgurn 1-3. My equation (for
examples, see Citations 2 and 3 In the DiblioKraphy) that
elves tltu name value* ad tliow lu Table 1-2 may be used
In lieu of Table 1- 2.
for particulute travi-rxes, one of tlio iliainotf is must 1>n
In a plane containing tlioureatesleMWted concentration
variation, c.R.. after bends, ono diameter stiull bn in thn
plane of Hi* bend. This requirement becomes l»si erit ical
as the distance fioin tlio disturbance increases; tlierefui'o.
other diameter loealions may bo used,;subject to approval
o! the A'lminiHi utor.
In addition, fur iftacks liaving diameter* greater than
O.lil in C2t in.) no trnversu iminta shall be located within
2.5 centimeters (1.00 in.) of the gtaclc walls; and for stark
diameters equal to 01* less than 0.01 m (24 in.), no travcrs*
IXMntssliHll be located wilbin l.;icai (u.5Uin.) of the alack
walls. To meet thcsu cilterfa, obwrvu tlio iirocedim-a
given below.
2.3.1.1 Stacks With Dmineters Greater Than 0.61 iir
(24 In.). When any of Die traverse points as located in
Heetion 2.3.1 full within 2.5cm (UX) in.) of the stack walls,
relocate them away from the stack walls to: (1) a distance
of 2.5 cm (1.00 in.); or (2) a distance ti'jnal to the noz?.lo
insid*: diameter, whichever is largor. These related
traverse, points (on each end of a diameter) shall be tlio
"adjusted" tmvcr;!*; points.
Whenever two successive traverse poinls are combined
to form a single adjusted traverse point, treat the ad-
justed point as two separate traverse points, both In the
sampling (or velocity measurement) procedure, and in
recordinx the data.
Environment Reporter
50
[Appendix A, Method 1
90
-------
5IMIIUIMAHY SUUHtitS
TRAVERSE
POINT
1
2
3
4
S
6
DISTANCE.
% ot diameter
4.4
14.7
29.5
70.5
85.3
95.6
Figure 1-3. Example showing circular stack cross section divided into
12 equal areas, with location of traverse points Indicated.
essentially parallel to the stack walls. However,
cyclonic (low mayr.xlsl (I) after such devices ns cyclones
and Incrlhil d.-misters following venttirt scrubbers, oc
(2) In stacks having tnnjuntUI Inlets or oilier duct con-
figurations which tend to Induct swirling; In these
Instances, the presence or absence el cyclonic flow at
Ihfsainpilnfr location mn.itb«determined. Tho following
technique? are acceptable for this determination.
1 i
0 ! O 1 O
o 1 o 1 o
1
i i
1 o
____.
Table 1-2. LOCATION OF TRAVERSE POINTS IN CIRCULAR STACKS
(Percent of stack diameter from inside wa'll to traverse point)
Traverse
"point
number
on a
diameter
1
2
3
4|
5*
6
7
8
9
10
11
12J
13
14
15
16
J7
18
19
20:
21
22
23
24
Number of traverse points on a diameter
2
14.6
85.4
4
6.7
25.0
75.0
93.3
6
4.4
14.6
29.6
70.4
85.4
95.6
8
3.2
10.5
19.4
3Z.3
67.7
80.6
09.5
96.8
10
2.6
8.2
'l4.6
22.6
34.2
65.8
77.4
85.4
91.8
97.4
12
2.1
6.7
11.8
17.7
25.0
35.6
64.4
75.0
82.3
83.2
93.3
97.9
14
1.8
5.7
9.9
14.6
20.1
26.9
36.6
63.4
73.1
79.9
85.4
90.1
94.3
98.2
16
1.6
4.9
8.5
12.5
16.9
22.0
28.3
37.5
62.5
71.7
78.0
83.1
87.5
91.5
95'. 1
98.4
18
1.4
4.4
7.5
10.9
14.6
18.8
23.6
29.6
38.2
61.8
70.4
76.4
81.2
85.4
89.1
92.5
95.6
98.6
20
1.3
3.9
•6.7
9.7
12.9
16.5
20.4
25.0
30.6
33.8
61.2
69.4
75.0
79.6
83.5
87.1
90.3
93.3
95.1
93.7
22
1.1
3.5
6.0
8.7
11.6
14.6
18.0
21.8
26V2
31.5
39.3
60.7
68.5
73.8
78.2
82.0
85.4
88.4
91.3
94.0
96.5
98.9
24
1.1
3.2
5.5
7.9
10.5
13.2
16.1
19.4
23.0
27.2
32.3
39.8
60.2
67.7
72.8
77.0
80.6
83.9
86.8
89.5
92.1.
94.5
96.8
98.9
! J.t.2 Stacks With Diameters Equal to or Less Tlmn
O.H1 ni (24 In.). Follow the procedure in Section 2.3.1.1,
noting only that any "adjusted" points should bo
relocated nway from tho stack walls to: (I) ft distance of
1.3 cm (DM In.); or (2) a distance equal to the noiile
Insido diameter, whichever Is larger.
2.1.2 Hcctangiilar Stacks. Determine the number
ol traverse points m explained in Snctinus 2.1 and 2.2 of
this method. From Tahiti 1-1. determine the grid rall.
figuration. Divide the slack crorj-sortlon Into as many
equal rectangular elemental arena as traverse points,
end then locate a tmvcrje point nt tho ccntrold of each
equal area nccordinjt to the example In Figure 1-1.
It the tester desires to use more than the
minimum number of traverse points,
expand the "minimum number of traverse
points" matrix (see Table 1-1) by adding the
extra traverse points along one or the other
or both legs of the matrix: the final matrix
need not be balanced. For example, if a 4x3
"minimum number of points" matrix were
expanded to 36 points, • the final matrix
could be 9x4 or 12x3, and would not neces-
sarily have to be 6x6. After constructing the
final matrix, divide the stack cross-section
into as many equal rectangular, elemental
areas-as traverse points, and locate a tra-
verse point at the centrold of each equal
area.
Tho situation of traverse points being too close to tho
(tack wnllj Is not expcctuo to arise with rectangular
slacks. If this problem should ever arise, the Adminls:
trator must be contacted for resolution of tho mnlti'r.
2 4 Verification of Absence of Cyclonic flow. In most
stationary sources, the direction of stack gas How Is
Figure 1-4. Example showing rectangular stack cross
teclion divided into 12 equal areas, with a traverse
point at cehtroid of each area.
Level and zero the manometer. Connect a Type R
pilot tube to tho manometer. Position the Typo 8 pilot
tube at each traverse point. In succession, so thnt the
planes of the face openings ot the pilot tube are perpendic-
ular to tho stuck cro.v-siiclJonal plane: when the Type S
pilot lube Is In this position, it Is at "0° reference." Not*
the differential pressure (Ap) reading at each traverse
point. If a null (zero) pilot rending Is obtained nt 0*
reference at a given traverse point, on acceptable flow
condition cxlsis at that point. l(tbe pilot reading Is not
icro at 0° reference, rotate the pilot tube (up to ±00° yaw
angle),nnlilamill reading isobtalaed. Carefully detennlnn
and record tho valun of the rotation angle. («) to Uie
nearest decree. After tho null technique has bocn applied
at each traverse point, calculated the average of the abso-
lute values of a; assign a values of 0° to those points lor
which no rotation was required, and Include these In the
overall average. II the average vslne ol a Is greater than
10°, the overall flow condition In the stack Is unacceptable
one! alternative methodology, subject to the approval of
the Administrator, must be mod to p.Tforin accurate
sample and velocity traverses.
3. Bibliography
I. Determining Dust Concentration In a Cns Stream.
AB.MK. Performance Test Code No. 27. New York.
1957.
2. Dcvorkln, ITow.ird, tt at Air' Pollution Source
Testing Manual. Air Pollution Control District- Los
Angeles, CA. November 1UM
3. Methods lor Determination of Velocity. Volume,
Dust and Mist Content of Oases. Western Precipitation
Division of Joy Manufacturing Co. Jx>s Angeles, CA..
Bulletin WP-50. 1069.
4. Standard Method for Sampling Stacks for Participate
Mutter. In: 1971 Wook of ASTM Standards. Part 23.
ASTM Designation D-292*-71.Philadelphia. Pa. 1971.
[>. Hanson, II. A.,ct al. Partlculate Sampling Strategies
for Large Tower Plants Including Nonunlform Flow.
i;3KPA, ORD. KSHT,, Roiearch Triangle Pork. N.O.
EPA-KXI/2-70-170. June lt>76.
6. Entropy Environmentalist". Inc. Determination of
the Optimum Numlior of Sampling Points: An Analysis
of .Method 1 Crlterln. Environmental Protection Agency.
Hn'e.irch Triangle Park, N.C. EPA Contract No. 08-01-
3172, Tusk 7.
METHOD 2—DETERMINATION OF STACK OAS VKLOCTTT
ANO VOLUMETRIC I-Xow iu« (Tire S PITOT TUBK)
1. Principle and Applicability
l.l Principle. The average gas velocity In a stack Is
determined from the gas dcnfily and from measurement
of the average velocity head with a Type S (Statissclielbo
or reverse type) pilot luuo.
1.2 Applicability. This method Is applicable for
measurement of the average velocity of a gas stream and
for quantifying gas now.
• This procedure Is not applicable at measurement sites
which full to ni'jct the criteria of Method I, Section 2.1.
Also, the method cannot bi* used Tor direct measurement
In cyclonic or swirling pas streams; Section 2.4 of Alclhod
1 shows how to determine cyclonic or swirling How con-
ditions. When unacceptable conditions exist, alternative
procedures, subject to the approval of the Administrator,
U.S. Envlronnipi'tM Protection Agency, must be em-
ployed to m.ike accurate (low rale determinations:
examples of such alternative procedures arc: (1) to Install
straightening vane;; (2) to calculate the total volumetrlo
flow rate sloic!>inmftric»Ily, or (.1) to move to another
measurement site al which the flow 1s acceptable.
2. Appnralui
Specifications for the apparatus are given below. Any
other appamtu; that li:n bran demonstrated (subject to
approval of the Administrator) to he capablx of meeting
the Specifications will bo considered acceptable.
9-7-79
ir^plJBIIUIA
Published by THE BUREAU OK NATIONAL AFFAIRS. INC., WASHINGTON, D.C. 20037
[Appendix A, Method 21
91
51
-------
21:1560
FEDERAL REGULATIONS
1.90-2.54 cm"
10.75-1.0 in.)
rfa.fAi'-x':v' * t-*'i£'$'
, 7.62 cm (3 in.) •
Y"'" i''-j--t>'*^}
TEMPERATURE SENSOR
LEAK-FREE
CONNECTIONS
MANOMETER
"SUGGESTED (INTERFERENCE FREE)
PITOT TUBE - THERMOCOUPLE SPACING
Figure 2-1. Type S pitot tube manometer assembly.
...-„.-----. .. '• Pilot
(Figure 2-1) shall lie made of metal tubing (e.g., stain-
less steel). It is recommended that the external tubing
diameter (dimension 1),. Figure 2-2b) be between 0.48
and 0.09 ccntliaftleri (?io and '/t Inch). There slmll be
an equal distance tram the base of each leg of the pilot
tube to its faoe-opcnlng plane (dimensions i>* anil J»»,
Figure 2-2b); It la reoorum>:n(1i»l that this distune* be
between 1.05 and l.f>0 limps the external tubing riinmtler.
The face openings of the pilot tube shall, i>n;fcral>ly, b»
aligned ne sliown in Figure 2-2; however, slight roisulixn-
nieuU of the openlcgs ar» permissible (stu Figure '23).
Tho Typo 8 pilot tub« shall have a known coedicient,
determined as outlined in Section 4. -An id?ntilU-atio»
number shall be assigned to the pilot tube; this number
ehall bo permanently inarhcO ov cn^rnr^J on tl><* bo<)y
«I tli« tube.
Environment Reporter
(Appendix A, Method 2)
92
52
-------
STATIONARY SOURCES
121:1561
TRANSVERSE
TUBE AXIS
\
FACE
OPENING
PLANES
(a)
A-SIDE PLANE
\
LONGITUDINAL
TUBE AXIS ^
)
\
Dt
t
A
B
r
B-SIDE PLANE
(b)
PA
PB
NOTE:
1.05Dt.»7 93
53
-------
1:1562
FEDERAL REGULATIONS
TMNSVERSE
TUBE AXIS
1 w I
LONGITUDINAL
TUBE AXIS—
(e)
w
Figure 2-3. Types of face-opening misalignment that can result from field use or im-
proper construction of Type S pitot tubes. These will not affect the baseline value
of.Cp(s) so long as ai and 02 < 10°, fa and fa'< 5°. z < 0.32 cm {1/8 in.) and w <
0.08 cm (1/32 in.) (citation 115r: Section 6).
Environment Reporter
54
[Appendix A, Method 2]
94
-------
A *l3nd.ird pilot ttihe may l>» usrcl Insleod of a Type S.
provided that It meets HIP sjicrliieations of Sections 2.7
and 4.2; noli", however. lli<\t the static and Impart
pressure holes of standard pilot Inlics ore susceptible to
r>li>pulnK In pnrllculaic-Uflen tsif streams. Therefore,
whenever a standard pilot lube l.< used to perform a
traverse, adequate pnnf must lie furnisher! lh.it the
openhigsnf the pilot tulie have not plugged up during the
traverse nvrtod: this ean be done l>y taking » velocity
henrt (A;>) reading oi the final traverse p-ilnt. cleaning out
Ili» Impact and static Iwlcs of the standard pilot tube by
"Kick-purging" with pressurised nlr, and thru Inking
Another Al> reading. If the Ap readings made liefnre and
after the air puree ami he^aine (+•'• percent).the traverse
l.i acceptable. Otherwise, ivjevl the run. Note tlmt If Ap
at the fln.il traverse point Is unsuitably low, another
point may bn selected. It "hock-purging" at regular
Intcrvuls is part of th« procedure, then comparative An
readings shall lio taken, as above, for the last two hack
purges at which suitably high An readings arc observed.
'l.l DifTwentlAl Trossuro Gauge. Au inclined manom-
eter or equivalent device is used. Most sampling lruln.1
arc equipped with a 10-ln. fwater column) Ir.clincd-
vertlcal manometer, having O.OI-ln. IIiO divisions on the
0- to l-in. Inclined Fr.nlo. and O.l-ln. IIiO divisions on tho
1- to lO-lii. vertical scale. This type of manometer for
other gauge of equivalent sensitivity) Is satisfactory for
tho measurement of An values os low as 1.8 mm (0.05 In.)
JIjO. However, a differential pressure gauge of greater
sensitivity shall bo used (subject to the approval of the
Administrator), If any of the following Is found to be
true: (I) the arithmetic average of all Aj> readings at the
traverse points In the stack la less than 1.3 mm (0.05 In.)
IliO; (2) for traverses of 12 or more points, more than 10
percent of the Individual Ap readings ere nclow 1.3 mm
(0.05 In.) If iO; (3) for traverses of fewer than 12 points,
more than one Aprcadln? Is below 1.3 min (O.OSin.) HiO.
Citation 18 in Section 6 describes commercially available
instrumentation for the mcasuremen t of low-range gas
voloc'tlcs.
gauge:
where:
Apc'Indlvidual velocity head reading at a travcrsa
point, mm 1I:O (In. II.O).
«-Tolal number of traverse points.
A'=O.I3 mm 1I:O when metric units are used end
0.005 In If >0 when English units are used.
It T Is greater than 1.03, the velocity head data are
unacceptable and a more sensitive differential pressure
gaiiRii must be used.
NOIB.—• If differential pressure gauges other than
Inclined maimntetors uru used (e.g., niagnoholic gaiige-s).
their calibration must bo checked after each test series.
To choc.* fie calibration of a differential pressure gauge,
compare A/I readings of the gauge with those of a gaugo-
oll mfmoinfiti-r at a minimum of thrue points, approxi-
mately rrpnmntlng the range of Ap values In thn stack.
I'. »t each point, the values of Ap as read by the (lldoron-
tlsl pressure gauge and gauge-oil manometer agree to
within S percent, the differential pressure gauge shall ho
considered to be In proper calibration. Otherwise, the
tvst scries shall cither ho voided, or procedures to adjust
tho measured Ap values and final results shall be used,
subject to the approval ol the Administrator.
2.3 Temperature Claugc. A thermocouple, liquid-
filled bulb thermometer, bimotalllc thermometer, mcr-
cury-lii-Klass thermometer, or other gauge capable of
measuring temperature to within 1.5 percent of the mini-
mum absolute stack temperature shall bo used. The
temperature gauge shall be attached to the pltot tube
such that thi) sensor tip dooj not touch any motal; tho
gauge shall be In an Inlerfcrruco-irm arrangement with
rcsrwct to thn pilot tube fuce openings (sou Figure 2-1
ana also Figure 2-7 In Section 4). Alternate positions may
be used If tho pltot tube-temperaluro gauge system u
calibrated according to the |iroee.dur« of Section 4. Pro-
vided that a difference of not more than I percent hi the
Average velocity measurement Is Introduced, the tem-
perature gauge nerd not he attached to the pltot lube:
this alternative Is subject to the approval of tho
Administrator.
2.4 1'rcssurc Trobe and native. A piezometer tube and
mercury- or water-filled U-tube manometer capnbU* of
measuring stark pressure t» vithlu 2.5 mm (O.I In.) Hg
Is usitfl. The. static ""> of a standard type pltot tube or
one leg of a Type S p:'.»t lulu: with the. face opening
plnnes positioned pui.ill-: la i!;r. gas flow may ulsu be
used as the i>re: probe.
2.S Barometer. A men-ury. aneroid, or oilier barom-
eter capable of meiuurin; atmospheric pressure to
within 2.5 mm UK (O.I In. lie) nmy be used. In ninny
cases, the baroniRtric rradlng may be obtained from a
nearby notional weather service station. In which caw
tho station value (which Is the absolute barometric
pressure) shall be requested and on adjustment for
elevutlon differences between the weather station and
the sampling point shall be applied nt a rate of minus
2.5 mm (0.1 In.) ifg per 30-iru-U-r (100 foot) elevntiou
Increase, or vice-versa fnr elevation dccrcaso.
2.6 (las Density Determination K'lulpment. Method
3 equipment. If nocdcd (.*•>• 8<-etion 3.0), to determine
the stack cas dry molecular weight, and Reference
Method 4 or Method 5 equipment for moisture content
determination; other methods may be used subject to
approval ol the Administrator.
2.7 Cnllhnitlon Pilot Tube. When calibration of thn
Type 8 pltot tube Is necessary (see Section 4), a standard
pltot tube is tucd as a reference. The standard pilot
tube shall, preferably, have a known coefficient, obtained
either (1) directly from the National Bureau of Stand-
ards, llouto 270, Quince Orchard Road, Uallhersburg,
Maryland, or (3) by calibration ojtolnst another *(nndard
pilot lubo with an NliS-traeeable rorlfklonl. Alter-
natively, n standiird pilot tube designed according to
the criteria clven in 2.7.1 liirouzh 2.7.$ below and Illus-
trated In Figure 2-4 (see also Citations 7. 8, And 17 In
Section 6) may be iiMil. Vitot tubes designed according
to these specifications will have baseline coefficients of
about O.Wifi.Ol.
2.7.1 lli-misphorleal (shown In FIzurr2-4),cllip.^ld:d,
or conical Up.
2.7.2 A minimum of six dianMeraslrnfi'lil run (based
upon /'. the external diameter of lire tubrj between tho
tip and lht> static pressure hole.i.
2.7.3 A minimum of eight dimneUra >trjlght run
between the static pressure ho'.rs ami tin- rriitcrllnc of
tin- cxlc-rnal tuV. fulloulng the OOdrfryr licnd.
2.7.4 tlatic pressure holM of «|unlsize (niiproxlinrilcly
0.1 /->). equally spaced In a jiteiumeler ring vonngurntion.
2.7.5 Ninety degree bend, wllh curved or niJtcicd
Jline.llon.
2.8 J)i(TcronllDl I'mmre Gauge for Type S I'llot
Tube Calibration. An inclined monmneler or equivalent
Is used. If the single-velocity callliralljn technltiun Is
employed (see Section 4.1.2.3), the calibration dUTcnm-
tlal pressure gauge flmll be readable to the neatest 0.13
mm HiO (0.00) In. IliO). For mulUveloclty cnUbratlons,
tho gauge shall bo readable la the ncerwt 0.13 mm IIjO
(O.OOJ In HiO) for Ap values between U and 25 mm IljO
(O.Oj and 1.0 In. II:O). nnd to the nearoit 1.3 mm IliO
(0.05 In. IliO) for &]> values above 25 mm HiO (I.U In.
HiO). A special, mure sensitive gauge will Iw required
to read Ap values below 1.3 mm JfjO (0.05 in. IliO)
(sec Cltnllon 1& In Section 6).
CURVED OR
MITEREDJUNCTION
STATIC
HOLES
HEMISPHERICAL
'TIP
Figure 2-4.- Standard pilot tube design specifications.
3. Procedure
3.1 Set up the apparatus as shown In Klgtire 2-1.
Capillary tuning or surge tanks installed between tho
manometer and pilot tube may be used to dampen Ap
fluctuations. It Is recommended, but not required, that
a pretest leak-check be conducted, as follows: (I) blow
through the pilot Impact opening until at loasl 7.8 cm
(3 in.) IIiO vuloclly pressure registers on Ihe manometer;
then, close olf the Impact opening. Tho pressure shall
remain stable for at least 15 seconds; (2) do the same, for
the static pressure side, except using snclIon to obtain
the minimum of 7.6 cm (3 in.) HiO. Olhcr leak-check
procedures, subjecf to the approval of the Administrator,
may be used. • :
3.2 Level and '.pro the manometer. Because the ma-
nometer level and zero may drift, duo to vlbralloiu and-
temperature changes, make periodic cheeks during I ho
traverse. Itecord all necessary data u shown In tho
example data sheet (Figum 2-.M.
3.3 Measure the velocity head and temperature at the
traverse points specified by Method 1. Ensure that tho
proper differential pressure gauge Is being u.«e>l fnr the
range of Ap values encountered ( and temperature readings at each tra-
verse paint. Conducl a posl-lesl teak-check (mandatory),
as described In Section 3.1 above, lo validate the trnverw
run.
8.4 Measure HID static pre.utire la the cluck. Ono
reading. Is usually adetiuntn.
8.5 Uelermlne the atmospheric pressure.
9-7-79
(Appendix A, Method 2]
Published by THE BUREAU OF NATIONAL AFFAIRS, INC., WASHINGTON, D.C. 20037 95
55
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121:1564
FEDERAL REGULATIONS
•
P! ANT
nflTF , RUN wn
STACK DIAMETER OR DIMENSION
BAROMETRIC PRESSURE, mm Hg (i
CROSS SECTIONAL AREA, m2(ft2)
OPERATORS
S,m(in) ,
n. Hg)
PITOTTUBEI.D.NO. ..
AVG. COEFI
LAST DATE
Traverse
Pt.No.
•
^ICIEWT rp =
CALIBRATED
Vct.Hd..Ap
mm (in.) H£0
•
Stack Temperature
ts.°C(°F)
Average
TS.0K(°R)
SCHEMATIC OF STACK
CROSS SECTION
mm Hg (in.Hg)
^r
*
Figure 2-5. Velocity traverse data.
Environment Reporter
56
(Appendix A, Method 2]
96
-------
MAIIUIMAKY SOURCES
121:1565
3.6 Determine the stack fas dry moleculr veighl. For com-
bu>tion piocciU'S or procosc* that emit evtemially CO2. O2,
CO. and N;. uv Method ). l-'or processes emitting essentially
air. an analv»i& nerd not be conducted; use a dry molecular
weight of -V.O. For other processes, other methods, subject to
the .vprotat of the Administrator, must he used.
3.7 Obtain the moisture content from Reference Method 4
(or cquiolcnt) or from Method i.
J.8 Determine the cross-sectional are* of the stuck or duct at
the sampling location. Whenever possible, physically measure
Ihe stack dimincnsions rather than using blueprints.
4. Calibration
4.1 Type S Pilot Tube. Before its initial use. carefully etamine
Ihe Type S pilot lube in lop. side, and end views lo verify thai
Ihe face openings of the lube are aligned within the speci-
fications illustrated in Figure 2-2 or 2-3. The pilot lube shall not
he used if it fails lo meet these alignment specifications.
After verifying the face opening alignment, measure and
record the following dimensions of Ihe pilot tube: (a) the exter-
nal tubing diamclcr (dimension 1),. f igurc 2-2b); and (b) the
base-to opening plane distances ttlimensions PA and /•//, Figure
2-2b). If DI is between0.46 and 0.95 cm t)' 16 and J/6 in.) and
if I'A and/>/) are equal and bcioeen 1.05 and 1.50 HI. there arc
two possible options: (I) the pilot tube may be calibrated accor-
ding to the procedure outlined in Scc:ions 4.1.2 through 4.I.S
below, or (2) a baseline (isolated lube) coefficient value of 0.84
may be assigned lo Ihe pilot fibe. No:e. however, lhat if Ihe
pilot lube is pan of an assembly calibration may still be re-
quired, despite knowledge of the baseline coefficient value (set
Section 4.1.1).
If DI. PA. and Pit are outside the specified limits. Ihe pilot
lube must be calibrated as outlined in 4.1.2 through 4.1.5
below.
4.1.1-Type S Pilot Tube Assemblies. During sample and
velocity traverses, the Isolated Type S pilot lube is not always
used; in many instances, the pilot lube is used in combination
with other source-sampling components (thermocouple, sampl-
ing probe, noz/le) as pan of an "assembly." The presence of
otner smapling components can sometimes affect Ihe baseline
value of the Type S pilot lube coefficient (Citation 9 in Section
6): therefore an assigned (or otherwise known) baseline coeffi-
'cicril value may or may not be valid for a given assembly. The
baseline and assembly coefficient valun will be identical only
when the relative placement of Ihe components in Ihe assembly
Is such lhat aciodvnamn; Interference effects are eliminated.
Figures 2-6 through 2-3 illustrate interference-free component
arrangements for Tspe S pilot tubes having external lubing
diameters between (MS and 0.95 cm (3/16 and J/8 in.). Type S
pilot tube assemblies thai fail to meet any or all of the specifica-
tions of Figure* 2-6 through 2-8 shall be calibrated according lo
Ihe procedure outlined In Sections 4.1.2 through 4.1.) below,
•nd prior to calibration, the values of Ihe intercomponent snac-
Ings (pilot-no*lie. pilot-thermocouple, pilot-probe sheath) snail
be measured and recorded.
NOTE .—Do not u « any Type S pilot lube assembly which Is
constructed such lhai the impact pressure opening plane of Ihe
pilot lube b below the entry plane of the nozzle (sec Figure
5-6b).
4.1.2 Calibration Setup. If the Type S phot lube is lo be
calibrated, one leg of the tube shall be permanently marked A,
and the other, B. Calibration shall be done in * flow system hav-
ing the following essential design features:
I
TYPE SPITOT TUBE
x> 1.90 cm (3/4 in.) FOR Dn » 1.3 cm (1/2 in.)
SAMPLING NOZZLE
A. BOTTOM VIEW; SHOWING MINIMUM FITOT-NOZZLE SEPARATE.
SAMPLING
PROBE
SAMPLING
NOZZLE
/ STATIC PRESSURE
OPENING PLANE
IMPACT PRESSURE
OPENING PLANE
B. SIDE VIEW; TO PREVENT PITOT TUBE
FROM INTERFERING WITH GAS FLOW
STREAMLINES APPROACHING THE
NOZZLE. THE IMPACT PRESSURE
OPENING PLANE OF THE PITOT TUBE
SHALL BE EVEN WITH OR ABOVE THE
NOZZLE ENTRY PLANE.
9-7-79
Figure 2-6. Proper pitot tube • sampling nozzle configuration to prevent
aerodynamic interference; buttonhook - type nozzle; centers of nozzle
and pitot opening aligned; Dt between 0.48 and 0.95 cm {3/16 and
3/8 in-).
(Appendix A, Method 2)
Published by THE BUREAU OF NATIONAL AFFAIRS. INC.. WASHINGTON. D.C. 20037
97
57
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:1566
FEDERAL REGULATIONS
THERMOCOUPLE
-B-
TYPE S PITOT TUBE
SAMPLE PROBE
THERMOCOUPLE
Z> 5.0ft cm ;
-»
(2 in.)
T
TYPES PITOT TUBE
. SAMPLE PROSE
Figure 2-7. Proper thermocouple placement to prevent interference;
Dt between 0.48 and 0.95 cm (3/16 and 3/8 in.).
TYPES PITOT TUBE
I
SAMPLE PROBE
Y>7.62cm(3?m)
2-8. Minimum pitot-sample probe separatfon needed to prevent interference;
t between 0.48 and 0.95 cm (3/16 and 3/8 in.).
4.1.2.1 Th« flowing gas stream must bo confined to a
duct of definite cross-sect tonal area, either circular or
M^™i ensure the presence of stable, fully developed flow
p, crns at the calibration sitr. or "test section," ttio
it laust be located at least pk:ht diameters downstream
a.... two diameters up-:ln-nm from the nearest disturb-
ances.
NOTE.—The eight- and two-diameter criteria are not
»-««»lute; other test section locations may bo used (sub-
{to approval of the Administrator), provided that tlio
r at the test site Is stable and demonslrably parallel
t lie duct axis.
4.1.2.3 The flow system shall have the capacity to
generate a test-section velocity around »15 m/mln (3,000
fl/mln). This velocity must bo constant with time to
guarantee steady flow during calibration. Note that
Type S pilot tube coefficients obtained by single-velocity
calibration at !U5 m/inin (3,000 ft/min) will generally bo
valid to within ±3 percent for the measurement of
velocities above :<05 m/inin (1,000 ft/min) and to within
±5 to 6 percent for tho measurement of velocities be-
tween 180 and 30.) m/mln (GOO and 1,000 ft/min). If a
more iirroise. correlation between C, and velocity Is
dejircd, the flow system shall have the capacity to
generate at least four distinct, time-invariant test-section
velocities covering the velocity rango from ISO to 1,525
m/mln (COO to 5,OOOTt/m!n), and calibration data shall
foe taken nt regular velocity intervals over this rango
(see Citations 0 and 14 in Section C for detail-).
4.1.2.4 Two entry ports, one each for the standard
and Type S pltot tubes, slmll be cut In the test section;
the/ standard pitot entry port shall be located slightly
downstream of tho Type S port, so that the standard
and Typo a Impact openings will lie In tho same cross-
sectional plane during calibration. To facilitate align-
ment of the pitot tuhei during calibration, It is advisable
that the test section bo constructed of ploxlglas or some
other transparent material.
4.1.3 Calibration Procedure. Note that this procedure
is a general one und must not bo used without llr.st
referring to the special considerations presented in Sec-
tion 4.I.S. Note abo that this procedure applies only to
dingle-velocity calibration. To obtain calibration data
for the A and B sides of the Type S pilot tube, proceed
as follows:
4.1.3.1 Make suro that the manometer Is properly
Oiled and that the oil Is free from conlamlimtloit and is of
the proper density. Inspect and leak-check all pilot linos;
" repair or replace if necessary.
4.1.3.2 Lovel and zero the manometer. Torn on the
fan and allow the flow to stabilize. Seal tho Tyiw S entry
port.
4.1.3.3 Ensure Oiat the manometer Is loveland zeroed.
Position tho standard pilot tube ai tho calibration point
(determined as outlined in Sction 4.1.5.1), and »'!pn the
lube so that Its tip is pointed directly Into the flow. Par-
ticular care should be taken In alig:iiiig the tube to avoid
yaw and pitch angles. Make sure that the entry port
surrounding the lube is properly scaled.
4.1.3.4 Itcad A;>.«i and record its value In a d*la table
similar to the one shown In Figure 2-9. Remove tho
standard pltot tube from the duct and disconnect 11 from
the manometer. Seal the standard entry port.
4.1.3.5 Connect the Type S pilot tube to the manom-
eter. Open the Type S entry iwrt. Check the manom-
eter level and zero. Insert and align tho Type 8 pilot tube
so that its A fide impact opening is at the same point as
was the standard pilot lube and is pointed directly Into
the llfnV. Make sure that the eulry port surrounding the
tube Is proixtrly sealed.
4.1.3.0 Read Ap. and enter Its value In the datn table;
Remove the Type B pltot tube fioiu the duct and din-
connect it from the manometer.
4.1.3.7 Ucp«iUlc|w 1.1.3.3 thror.Rlil.l.n.CabovcUntil
three pairs of Ap readings havo bfctt obtained.
4.1.3.8 Kepeat steps 4.1.S.S through 4.1.3.7 abovo for
tho H.sideof the Type B pilot tub*.
4.1.3.9 Perform calculation*, ns described In Section
4.1.4 below.
4.1.4 Calculations.
4.1.4.1 For each of the six pairs of Ap readings (I.e.,
three from *ldn A and three hnr.i sklo D) obtained In
Section 4.1.3 abovo, calculate the value of the Type 8
pilot tube cocHictciil as follows:
Environment Reporter
58
{Appendix A, Method 2]
98
-------
STATIONARY SOURCES
121:1567
WOT TUBE IDENTIFICATION NUMBER:
CALIBRATED BYr
.DATE:
RUN NO.
1
2
3
"A" SIDE CALIBRATION
Apstd
cm HzO '
(in. HzO)
AP($)
cmH20
(in. H20)
Cp (SIDE A)
Cp($)
DEVIATION
Cp(j) - Cp(A)
RUN NO-.
1
2
3
"B" SIDE CALIBRATION
Ap$td
em HzO
(in. HzO)
APM
cm HzO
(in. HzO)
Cp (SIDE B)
CpM
DEVIATION
Cp(,)-Cp(B)
AVERAGE DEVIATION = a (A ORB)
X|CpM-Cp(AORB)j
•MUSTBE<0.01
( Cp (SIDE A)-Cp (SIDE B) |-J-MU$T BE <0.01
Figure 2-9. Pitot tube calibration ddta,
Equation 2-2
C»|.)-= Type S pilot tub coeficlent
C,t.M>=6tandard pilot tube coefficient: use 0.00 II the nfriitat«*etweItn"'tbe90>
coefficient Is unknown and tho tube Is designed values.
according to tlie criteria of Sections 2.7.1 to
2.7.S of this method.
Velocity bead measured by tlie standard pilot
tube, era HtOQn.H.O)
A^,-'Velocity hend measured by tbo Type S pltol
tube, cm IIiO (in. I1,O)
4.1.4.3 Calculate C, (side A), the mean A-slde coef-
ficient, nnd C, (side B), the mean Jl-sldo coefficient;
4.1.4.3 Call, iilatr tlie deviation ol rath of tlie three A-
Hide values of r, <. > from C, (sidcA). and tlie deviation of
carh U-sldc value -• J?»( A or B)
Kqimtion 2-3
4.1/1.4 Caleutalc ", the ftverag* deviation from Urn
mean, fur both the A and U sides of Die pilot tubai VLB
the following equation:
a (siclo A i-r B)
3
Equation 2-4
4.1.4.5 Vie the- Type 8 pilot tube only If the values of
a (side A) and oocnts (nottle,
thermocouple, sample probo) In nn arrangement that Is
free from aerodynamic Interference effects (see Figures
2-0 through 2-8).
4.1.5.1.2 For Typo 8 pilot tube-thermocouple com-
binations (without sample probe), select a calibration
point at or near tho center of the duct, and follow the
procedures outlined In Sections 4.1.3 and 4.1.4 above.
The coefficients so obtained will be valid so long as the
pilot tube-thermocou|ilo combination Is used by Itself
or wKhotherconiponeiils In on Interference-free arrange-
ment (Figures 2- C and 2-8).
4.1.5.1.3 For assemblies with sample probes, the
calibration point should be located at or near the center
of tho duct; however. Insertion of a probe sheath Into a
email duct may cause significant cross-sccllonal area
necessary. The actual blockage, effect will be negligible
when tho thoorcllrnl blockage. A* determined by a
• nrojcctc'd-area model of the probe sheath. Is 2 percent or
less of the duct cross-sectional area for assemblies wlthont
external sheaths (rigure 2-lfla), and 3 percent or less to
assemblies with external sheatlis (Figure 2-JOb).
4.1.5.2 For those probe assemblies In which pilot
tiibc-noztle Interference Is ft factor «.«.. those In which
the pltot-nanle separation diitance foils to meet the
sneclflcnllon Illustrated In Flgura 2-tfa), tho value of
C,(.l doponds UIK>II I ho amount of frcc-spcico between
the lube and nor.ile, nnd therefore Is a function of nor.ile
sUc. In these instances, separuto calibrations shall be
performed with each of the commonly used iior.ilu sizes
In placu. Note that tho slriglo-veloclly calibration tech-
nique Is accept Able for this purpose, even though the
liirg«T noizle sizes (>0.035cin or Ji In.) are not ordinarily
used for Isoklnetic nampling at velocities turound 915
in/niln (3,000 ft/mln), which la On calibration velocity;
note also that It Is not necessary to draw an IsokineUo
sample during calibration (sec Citation 10 In Section 6).
4.1.5.3 For a probe assembly constructed such that
Iti pilot tube Is always used In the same ocicn tat Ion, only
one side of the pilot tubo need be calibrated (the side
which will face the now). The pilot tube must (till meet
Ihe alignment specifications of Figure 2-2 or 2-3, however.
nnd must have an average deviation (») value of 0.01 or
less (see Section 4.1.4.4).
9-7-79
(Appendix A, Method 2)
Published by THE BUREAU OF NATIONAL AFFAIRS, INC.. WASHINGTON. D.C- 20037 "
59
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121:1568
FEDERAL REGULATIONS
ESTIMATED
SHEATH
BLOCKAGE
-F'-"W 1x100
[pUCTAREAj
Figure 2-10. Projected area m.odels for typical pitot tube assemblies.
4.1.C Field Uso'and Rccalihration.
4.1.6.1 Field Use.
_4.l.r..l.l When 8 Type S pitot lube (Isolated tube or
«mbly) Is used in the field, the appropriate coefficient
due (whether assigned or obtained by calibration) shnll
s'used to p.-rform velocity calculations. For calibrated
*f\t B pitot tubes, tin? A side roclTiclent shall be used
w lien the A side of the tube faces the now. (mil tlio B side
coefficient shall be used when the U side fa'-os the flow;
Alternatively, tlie arithmetic average of the A and H side
H'indent values may l>e used. Irrespective of which side
.ecs thfl flow.
1 I.G.I.2 When a prolje ssscnibly Is used to sample a
small duct (12 to 34 in in diameter), tlio probe sheath
sometimes blocks a significant part of thft duct cross-
spi'llo-.i, causing a reduction in tho effective value of
*"~V«. Consult Citation 9 In Section (1 for details. Con-
cntlonal pilot-sampling probo assemblies tiro not
•commended fur use In (Juris having inside diameters
< ...nailer than 12 Indies (Citution 1C hi Section V).
4.1.0.2 Rccalibratkm.
4.1.0.2.1 Isolated Vitot Tube*. After each field nse. tha
fitot ttibn shall be carefully recxamlucd In top, side, and
nd views. If the pitot fare openings are still aliened
•ithin tho specifications Illustrated In Figure 2-2 or 2-3,
• : can be assumed that the baseline coefficient of the pilot
tube lias not changed. If, however, the tube has been
dvnagcd to the extent thai it no longer meets the speeifl-
^cations of Figure 2-2 or 2-3. th* dnmace shall cither bo
^j-palred to restore proi^r atiKiimout of tho face, openings
r the tube shall be discarded.
4.1.1.2.2 I'itot Tube Assemblies. Aft'r each field use,
• chec'k the face opening alipimcnl of the pitot tube, as
in Section 4.1.0.2.1: iu>>, romrasure the Intvrcotnponent
spncings t/I the assembly. If the lntrrcotiiponrnt sittings
)—*iove not changed nnd the face openlnK nllcnnicnt Is
acceptable. It can bcn*3iiincd that the coclliclint of tho
kwmbly has not c!m»(,-"il. If the face opening alicni'ient
s no lonpcr within tlit sneclllrntloiis of Fljrurcs 2-2 or
2-3. either rejiair the '.bmair* or n-plaee the pilot tubo
(ca'.ibratini; Inencwowml'ly. if necessary). If the Inter-
component spacln^s h«vc cbau^rd, restore the or'ginM
f""r'35in(!s or recnllbrute the assembly.
4.2 Standard phot lube (if applicable). Tf a standard
>ilOt tube. Is used fur the velocity traverse, the tube shall
..* constructed nocorrtiiiR to the crifrio of Section 2.7 and
5h»!l be frSHipnrd B busdini: cocllicient vuliie of O.M. If
tlin standard jiltot tubt is used us part of an assembly,
tlio tnbe. shall be In an Interference-free, arrangement
(subject to the approval of the Administrator).
4 A Temperature Gauccs. After each field use, cali-
brate dial thermometers, liquid-filled bulb thermom-
eters, thermocouple-potentiometer systems, and other
gauges at a temperature within 10 percent of the average
absolute stack temperature. For temperatures up to
40:V C (761° t), use nn ASTKI mcrcury-in-Elassrefcrcnco
thermometer, or criulvalcnt, ns a reference ; ullernati vely,
tllher a reference thermocouple and potentiometer
(calibrated by NHS) or thermometrlc five') iioints. e.p.,
Ice bath and boiling water (corrected tur barometric
pressure) may bo used. For temperatures above 40.V C
(701° F), use an N US-calibrated reference thermocouple-
iiotfMitiomctcr system or on alternate- rtfcronco, subject
to the approval of tho Administrator,
If, durlnp calibration, the absolute temperatures meas-
ured with the Banco being calibrated arid the reference
Cauee agree within 1.5 percent, the temperature d»ta
taken In tho Meld shall be considered valid. Otherwise,
the pollutant emission test shall either be considered
Invalid or adjustments (if appropriate) of the test results
lhall bo made, subject to the approval of the Administra-
tor.
4.4 Barometer. Calibrate the barometer used against
a mercury barometer.
G. Calculation*
Carry out calculations, retaining at least one extra
decimal figure beyond that of the acquired data. Hound
0 Vitot tubo constant,
4 07
f
L
sec (sK)(inmil2O) J
for the metric system and
ft r
-------
MANUFACTURERS SUPPLIED
INFORMATION
HLD-440
HALOGEN LEAK DETECTOR
61
-------
Halogen Leak Detectoi
perafing
instructions
A
GENERAL DESCRIPTION
This instrument is a portable, battery-
operated, electronic halogen gas detector. It is
capable of finding leaks as small as Vz ounce
or year; as well as large leaks in areas where
background contamination may be present.
The instrument provides a "Geiger Counter"
ticking signal which increases as the leak is ap-
proached. When the leak has been found, a
siren is sounded.
No danger exists when approaching a large
refrigerant leak with the leak detector. Unlike
a gas torch, dangerous or poisonous gases are
not generated. The sensing tip is not affected
by large amounts of refrigerants as are vacuum-
type halogen gas detectors. Recovery time after
the probe is removed from a contaminated area
is instantaneous.
Requiring no warm-up period, the instru-
ment is ready to use following a simple calibra-
tion procedure. It is equipped with a dual length
flexible probe which can be bent to permit the
sensing tip at the end of the probe to reach
normally inaccessible leaks.
A low battery indicator light is also pro-
vided, so that your leak detector is kept in top
working condition at all times.
HOW TO FIND LEAKS
1) Move slide switch to CALIBRATE position.
(Figure I)
2) Calibrate by turning the knob until ticking
signal is heard.
3) Move switch to OPERATE position.
4) Search for leaks.
5) When a small trace of halogen refrigerant
enters the sensing tip, the "Geiger Counter"
ticking signal quickens. As more gas enters
the tip, the signal speeds up until it be-
comes a siren.
62
-------
Low
Battery
Indicator
Sensitivity
Adjustment
Knob
(FIG.1)
SEARCHING FOR LARGE LEAKS
OR IN CONTAMINATED AREAS
1) In areas of high background contamination
and/or large leaks, if the siren alarm sounds
before the leak source can be located, your
leak detetor can be de-sensitized. Turn the
control knob counter-clockwise slowly until
the siren alarm returns to a ticking signal.
Now a large leak can be located despite any
background contamination which might be
present.
2) In windy areas, a large leak can be extremely
difficult to find, because the escaping gas is
rapidly carried away from the leak source.
Under these conditions, it may be necessary
to shield the potential leak area.
NOTE: It may not be necessary to readjust cali-
bration knob each time the unit is turn-
ed on. Simply move switch directly to
operate position.
SEARCHING FOR SMALL LEAKS
1) In a situation when large leaks mask the
presence of very small leaks, locate and
repair large leaks first. Finding the small
leaks will then become an easy task.
2) When trying to locate a very "hard to find
leak", first isolate potential leak area with
a drop cloth, etc. Wait a few minutes and
probe the shielded area. Continue this prac-
tice until all suspected areas have been ••
checked.
3) When searching for ULTRA small leaks, you
may wish to leave the instrument's slide
switch in the CALIBRATE position. In this
position, due to the extreme sensitivity, a
slight variation in the ticking signal may be
noticed.
OTHER LEAK DETECTION
TECHNIQUES
1) When the knob (Figure 2) in the lower
corner of the instrument is loosened, the
flexible probe is free to move 180°. This is
especially useful when searching in normally
inaccessible areas.
2) In areas where background noise is a prob-
lem, you may want to use the earphone
accessory available for your leak detector.
3) It is important to remember that halogen
gases are heavier than air. The first indica-
tion of the presence of halogen gases may
be slightly below the actual leak source.
4) When searching for leaks, the sensing probe
should be moved at a rate of approximately
one inch per second.
NOTE:
Before rotating
Flex Probe, loosen
Probe knob two lull turns
counterclockwise.
(FIG.2)
63
-------
MAINTENANCE HINTS
1) To install batteries, remove the battery cover
on the back of the instrument. Be sure to
install batteries as indicated in the battery
compartment.
2) Batteries effect performance. When your
leak detector is turned on, the red battery
indicator should be lit. If the red light is not
on, install fresh and/or tested Size "C"
Alkaline batteries. Remember, cold temper-
atures will effect battery strength.
3) If the red light is on, and the unit fails to
operate properly, turn instrument off and
replace the sensing tip*. If the unit still
does not function correctly, return it to the
factory for repairs.
4) If the ticking signal is erratic or a contin-
uous siren is heard, the sensing tip should
be replaced:
5) Minimize tip contamination from dust and
grease by utilizing the tip protector and
filter cloth.
6) Always be sure your instrument is off when
changing tips. To change the sensing tip,
turn the tip counter-clockwise. Attach a new
tip by turning clockwise on the connector.
Do not operate your leak detector until the
sensing tip is screwed on finger tight. Use
care not to catch perspiration, or grease
such as hand cleaner in the slots, while
attaching the tip.
"NOTE: The battery voltage is amplified in the
sensing tip. Failure to turn the instru-
ment off when changing tips will re-
sult in a mild shock when the tip is
touched.
REMEMBER: This leak detector is an electronic
instrument. If you treat it with care, it will
provide you with years of trouble-free
operation.
PARTS LIST
SENSING TIP Part #HLD 441
SENSING TIP PROTECTOR Part #HLD 442
REFERENCE LEAK BOTTLE Part #HLD 443
FILTER CLOTHS Part #HLD 444
MAINTENANCE KIT Part #HLD 445
MAINTENANCE KIT CONTAINS:
2 SENSING TIPS
3 SENSING TIP PROTECTORS
12 FILTER CLOTHS
ACCESSORIES:
EARPHONE ACCESSORY . . . Part #HLD 446
CARRYING CASE Part #HLD 447
SPECIFICATIONS
1. POWER SUPPLY:
2. SENSITIVITY:
3. OPERATING
TEMPERATURE RANGE:
4. BATTERY LIFE:
5. DUTY CYCLE:
6. RESPONSE TIME:
7. WARM-UPTIME:
8. WEIGHT:
9. DIMENSIONS:
10. PROBE LENGTH:
Two, Size "C" Alkaline
Batteries
One-half Ounce per year
33° - 100°F
Approximately 40 hours,
normal usage
Continuous,
no limitation
Instantaneous
Instantaneous
28 ounces
(with batteries)
8"x3"xl.8"
12.5"
WARRANTY AND
REPAIR/EXCHANGE POLICY
This instrument is designed and produced to
provide unlimited service. Should the unit be
inoperative after the user has performed the
recommended maintenance*, a no-charge, re-
pair or replacement will be made to the original
purchaser. This applies to all repairable instru-
ments which have not been tampered with or
damaged. The claim must be made within one
year from the date of purchase. Repairable in-
struments, out of warranty, will be repaired or
replaced for a service charge not exceeding
$20.00 plus transportation costs to and from
our plant. An additional 90 day warranty will
cover the repaired or replaced unit.
'Recommended maintenance: Failure to change
batteries and sensing tip will result in an $8.00
maintenance charge.
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APPENDIX C
GAS CALIBRATION CERTIFICATION
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Scott Environmental Technology Inc.
Plumsteadville, PA 18949
(215) 766-8861
Madison Heights, Ml 48071
(313) 544-0625
SPECIALTY GAS DIVISION
San Bernardino. CA 92411
(714) 887-2571
TRW
Attn: Bob Jangleau
800 Foilin Lane
Vienna, VA 22180
Date:
• April 10. 1979
Our Project No.: 306601
Your P.O. No.: H °8503
Gentlemen:
Thank you for choosing Scott for your Specialty Gas needs. The analyses for the gases ordered, as
reported by our laboratory, are listed below. Results are in volume percent, unless otherwise indicated.
ANALYTICAL REPORT
r.yl Nln C-1414
Component
Analytical
Arruracy -2%
Concentration
TETRACHLORO ETHYLENE
45 . 7 ppm
AIR
BALANCE
Nln C-1560
Component
Analytical
AceUracy ±2%
Concentration
TETRACHLORO ETHYLENE
\.\
AIR
,
BALANCE
Analyst
Analytical
Component
TETRACHLORO ETHYLENE
AIR
Concentration
92.8 ppm
BALANCE
\ .
; .A
•\
Tyl Nrt ^
Component
Analytical
Accuracy
Concentration
"*
Approved By
^A CSN e^ruYX.cv
ROBERT DENYSZYN 19'
The only liability of this Company lot gu which fall* to comply with thU analysis ihall be replacement thereof by the Company without extra coat.
ACU8LEND® • CALIBRATION & SPECIALTY GAS MIXTURES B PURE GASES
ACCESSORY PRODUCTS B CUSTOM ANALYTICAL SERVICES
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