Document emvaYpNOBx3k6Y7RGeB1RKKOM
PPG INDUSTRIES, INC. INDUSTRIAL CHEMICAL DIVISION
LAKE CHARLES, LOUISIANA
LD-1121D
JUN 71972
CONTINUING PROGRAM OF MONITORING ATMOSPHERIC CONTAMINANTS WITHIN THE LAKE CHARLES PLANT
Distribution
W. Graybill
H. J. Hoenes, J:
H. B. Lovejoy
D. Duncan
f\
M., D\jj
C. A. Burns
M. G. Burns
T. Taylor
R. Kaspar
E. McVicker
W. Chapman
C. P. LeBlanc
Central Files - G.O.
Technical Files (6)
Author
Laboratory File
by
Mark Wood
May 12, 1972
Key Words
Occupational Environment Atmospheric Contaminants Montaire Sampler MSA Universal Pump Andersen Mini Sampler Electrostatic Precipitation Unico Gas Detector Mercury Vapor Detector OSHA Heat Stress ACGIH Asbestos Fibers Wet Bulb Globe Temperature
SL 093303
LABORATORY DEPARTMENT MARK WOOD
TECHNICAL REPORT MAY 12, 1972
CONTINUING PROGRAM OF MONITORING ATMOSPHERIC CONTAMINANTS WITHIN THE LAKE CHARLES PLANT LD-1121D
ABSTRACT
The tables composing this report are continuations of occupational environ ment surveys started, early in 1969 and contain data from all plant areas from November 1971 to May 1972.
INTRODUCTION
The periodic investigation of employee's occupational environments initiated in 1969 is described in detail in LD-1121. This report is an addendum and contains tabulated data collected from November 1971 through May 1972.
DISCUSSION
The methods and sampling times stated in previous reports have not been changed. Two additional surveys are included in anticipation of more rigid regulations. The first addition, Table 11, is airborne asbestos with regard to diaphragm cell manufacturing and maintenance insulators. The second, Tables 12 and 13, is heat stress analysis in Mercury Circuit and Diaphragm Areas.
Airborne asbestos samples were taken with personnel monitoring equipment pulling an air sample through a membrane. The membranes were sent to Barberton for sizing and counting of the asbestos particles.
Heat stress measurements were accomplished using natural wet bulb, dry bulb, and globe thermometers as outlined in the "Notice of Intent to Establish" section of the 1971 American Conference of Governmental Industrial Hygienists booklet. For each job classification where men work in high heat exposures, a threshold limit value is obtained from their energy output. The exposure is expressed as degrees wet bulb-globe temperature. WBGT takes into consideration variables such as radiant heat and evaporative effect due to air currents and humidity.
Since some threshold limit values have been changed, a new tabulation of these values is appended.
Results of these surveys, tabulated by areas, are appended. Table 7 on sodium chlorate has been removed.
Author: M
Mark Wood
S-/6-
Date
,,
MW:rw
Approved:
C. P. LeBlanc
sr- * ~- 7z^
Date
SL 093304
SL 093305
LD-1121D/U
Threshold Limit Values of
Airborne Contaminants and Physical Agent (Existing within the Lake Charles Plant)
Contaminant Ammonia Chlorine Hydrogen Chloride Lead
Mercury Methyl Chloroform Perchlorethylene Phosgene Sodium Hydroxide Trichlorethylene Vinyl Chloride
Mineral Dusts Nuisance Lust Asbestos Silica Pigments
Heat Stress
T.L.V. Concentration 50 ppm (intended change - 25 ppm) 1 ppm
5 ppm 0.20 mg/M3 (intended change -
0.15 mg/M3)
0.05 mg/M3 550 ppm 100 ppm
0.1 ppm 2 mg/M3 100 ppm
500 ppm (intended change 200 ppm)
10 mg/M3 20 m.p.p.o.f. (intended change - 5 fibers > 5 n/ml) 6 mg/M3 (adopted by PPG Industries, Inc.) See graph - page LL-1121D/5
From 1971 Edition, Threshold Limit Values of Airborne Contaminants Adopted by ACGIH (American Conferences of Governmental. Insustrial Hygienists).
SL 093306
TABLE 1 OCCUPATIONAL ENVIRONMENTAIR MONITORING
Area
Monitored Personnel
Date-Time
Contaminant Concentration Conditions.
Mercury Cell Circuit Cell Operator 3-15-72 (A.M.)
Chlorine
l/2 ppm
-
Cell Auxiliary
Operator
Ditto
Chlorine
< l/2 ppm
-
Cell Repairman Ditto
Chlorine
< l/2 ppm
-
Cell Cut-Out Man
Ditto
Chlorine
l/2 ppm
Cell Operator 3-15-72 (A.M.)
Cell Auxiliary
Operator
Ditto
Cell Repairman Ditto
Cell Cut-Out Man
Ditto
Mercury
Mercury Mercury
0.05 mg/M3
0.10 mg/M3 < 0.05 mg/M3
Numerous Cells being Cut Out
Ditto
Ditto
Mercury
0.10 mg/M3
Ditto
Method Monitaire Sampler Ditto Ditto Ditto Monitaire Sampler
-
L D -1 1 2 1 D /6
SL 093307
3i.'.-22>3 (Rev. IO/69)
Laboratory Lunch Room No. of People Nest Room Locker Room
TABLli 2
MLRCUHY IN AIR AT MFI-jCNHY CELL (IIS in rcs/t^'l
0.008 0.0k)
6_____
0.020 0.013
Control Room Office Motor Control
Area Maintenance 13.8 XV Sv. Gr. "
0.012 0.010 0.026
0.013 0.005
V 16 0.006
Late: . Il/l6/71 thru 5/3/72 (Average of 33 surveys)
Ha Stack Area < 0.005
Open Cells
_Z______
Relative Humidity
Temperature
-
Maintenance Lunch Room
< 0.005
2 0.029*
63 66 64 1*^5 n 0.031
r 0.028
36 34 10-
u 0.111 0.048
ooo< 1 0.033 3 0.030 j
000
U 0*05? L _0._027_
0.024* /
ir 0.06l
T 0.022
J
67 65 63 i--j&ton
un
9 *0.015
OO
m 11
oo rm
*12
35 -is
0.058 0.036
o.o4o 0.012
Surveys taken with J-W Lemare Mercury ''Sniffer, Model MV-Z*
0.021
0.035 0.019
0.058 0.014
642
J/
W--
---- E
/t \
S Wind
f ; i mph
ju L
,000 Approved:
Di stribution
OOO A. T. Raetzsch
:rn D. L. Duncan J. M. Davis
I E. J. Tullier
j Dr. Lovejoy j M. G. Burns 15 jj j E. McVicker
5*3 1 i C. A. Burns ----------- ! C. P. LcBlanc
K. J. Koencs, Jr. Wilton Wallace (2) B. Greer. Laboratory Pile
U - Cell Floor L - Ground Floor
l/a is iT -a 'i
SL 093308
Area
Brinte Tr atment Liquefact on
TABLE 3 OCCUPATIONAL ENVIRONMENT AIR MONITORING
Monitored Personnel______ Date-Time
Contaminant Concentration Conditions
Liquefaction Operator
3-17-72 (A.M.)
Chlorine
< l/2 ppm
Brine Treatment Ditto Operator
Chlorine
< l/2 ppm
Liquefaction Operator
Brine Treatment Operator
3-17-72 (A.M.) Ditto
Ammonia
< 5 ppm
Ammonia
< 5 ppm
Method Monitaire Sampler Ditto
Monitaire Sampler Ditto
L D -U 2 1 D /8
SL 093309
Area Caustic Plant
TABLE 4 OCCUPATIONAL ENVIRONMENT AIR MONITORING
Monitored Personnel
Date-Time
Contaminant Concentration Conditions
DH Operator
3-16-72 (A.M.)
Chlorine
< 1/2 ppm
"A" Evaporator
Operator
Ditto
Chlorine
< l/2 ppm
Filter Operator
Ditto
Chlorine
1/2 ppm
Lead Operator Ditto
Chlorine
< l/2 ppm
t
DH Operator
3-16-72 (A.M.)
"A" Evaporator
Operator
Ditto
Filter Operator
Ditto
Lead Operator Ditto
Ammonia Ammonia Ammonia Ammonia
< 5 ppm < 5 ppm < 5 ppm < 5 ppm
Caustic Bird Area
-
4-20-72 (A.M.)
NaOH Mist
0.2 mg/M3
PEL0/Anhydrous
Operator
3-17-72 (A.M.)
PELS Shipping 4-03-72 (A.M.) Packer
Chlorine Chlorine
< l/2 ppm < l/2 ppm
SL 093310
Method Monitaire Sampler
Ditto
Monitaire Sa Ditto
er
Monitaire Sampler Ditto Ditto Ditto
Water Scrubber/ Atomic Absorption Sodium Anal.
Monitaire Sampler
Ditto
r.*.
Hfii
Hfcf VO
Area
Diaphragm Cell Circuits
TABLE 5 OCCUPATIONAL ENVIRONMENT AIR MONITORING
Monitored Personnel
Date-Time
Contaminant Concentration Conditions
Tender, Circuits 1,2
Tender, Circuits 5*6
5-14-72 (P.M.) Ditto
Chlorine
1/2 ppm
Chlorine l/2 ppm
Tender Circuits 7*8
Operators
Ditto Ditto
Chlorine Chlorine
l/2 ppm l/2 ppm
Method Monitaire Sampler Ditto Ditto Ditto
LD -U 21D /10
SL 093311
Area
Diaphragm Cell Repair and Manufactur i n g
TABLE 6 OCCUPATIONAL ENVIRONMENT AIR MONITORING
Monitored Personnel
Date-Time
Contaminant Concentration Conditions
Lead Pot Area 3-14-72 (No. 3)
Lead
0.05 mg/M3
Removing graphite chips.
Lead Pot Area (No. 3)
Ditto
Lead
< 0.05 mg/M3 Pouring Lead
Lead Pot Area (No. 6)
Solder Wiping Area
Ditto Ditto
Lead Lead
< 0.05 mg/M3 <0.05 mg/M3
Pouring Lead
,t
Wiping
Solder Wiping Area
Ditto
Lead
< 0.05 mg/M3 Not Wiping
Method MSA Universal Pump with Fb Kit Ditto
Ditto
Ditto
Ditto
Repairman at Mastic Area
3-14-72
Chlorine
< l/2 ppm
tfonitaire Sampler
Repairman at Acid Dipping Area
5-11-72 (A.M.) 5-11-72 (A.M.)
Ditto
Hydrogen Chloride
hydrogen Chloride
hydrogen -Chloride
< 1 ppm 2 ppm
Submerging cathodes. Raising cathodes.
MSA Universal Test Kit
Ditto
10 ppm
Draining cathodes. (Respirator in use.)
Ditto
SL 093312
fai
u 5
P
Area Powerhouses
Monitored Personnel
"A" Watch Engineer
"A" Utility Operator
"B" Watch Engineer
TABLE 8 OCCUPATIONAL ENVIRONMENT AIR MONITORING
Date-Time 4-3-72 (A.M.)
Contaminant Concentration Conditions
Chlorine
< 1/2 ppm
Ditto Ditto
Chlorine
< l/2 ppm
Chlorine
< l/2 ppm
Method Monitaire Sampler
Ditto Ditto
L D -U 2 1 D /1 2
SL 093313
Area
Silica Pigments (See note for
locations of sampling.)
Monitored Personnel C
D EF
TABLE 9 OCCUPATIONAL ENVIRONMENT AIR MONITORING
Date-Time 3-14-72 (A.M.)
Ditto Ditto Ditto
Contaminant Concentration Conditions
Particulates 1.7 mg/M3
No activity.
Particulates 4.3 mg/M3 Particulates 42.3 mg/M3 Particulates 28.8 mg/M3 '
Bagging and loading. Bagging and loading. Ditto.
Method
Electrostatic precipitation. Ditto Ditto Ditto
Sampling
3-14-72
personnel
wearing Midget
Cascade Impactor
while sampling
above points -
1 hour.
(A.M.)
Total Particulates 21.6 mg/M3
Respirable Portion
11.5 mg/M3
or 5%
respirable.
Andersen Mini Sampler
(Wind - SW at 5 mph)
Furnace Building .5-15-72 (Mid-day) Upper Floor South Entrance
NaOH Mist
4.0 mg/M3
Water Scrubber/ "AA" Sodium Analysis
SL 093314
ca
Ee
SILICA PIOMMIS AREA
PARTICUIAIE AIR I'M!
LCCATIO'.'S
lt U-m2id/iL
Downstairs dr Frit Enact or area of Furnace Building
Upstairs, over the south end of the furnace in Furnace Building
North-East corner of the Pigments Shipping Building where trucks and boxcars are loaded
Center of Pigments Shipping Building, under North-South conveyors
On the Bagging Platform between Baggers in Pigments Shipping Building
Center of Lower Roadway leading out the west door of Pigments Shipping Building, adjacent to Bagging Area and Hopper Car Loading
SL 093315
Area
Organics Area (See map for
sample locations)
Monitored Personnel
1 thru 8
TABLE 10 OCCUPATIONAL ENVIRONMENT AIR MONITORING
Date-Time 4-13-72
Contaminant Concentration Conditions
Phosgene
None detected.
12 mph South wind.
Method
Unico Gas Detection
1 thru 8
4-13-72
Methyl
None detected.
Chloroform
> 12 mph South wind.
Ditto.
LD-1121D/15
SL 093316
Area Organics
Monitored Personnel 1
2 3' 5 6 7 8
3
4
TABLE 10 - (CONT'D.) OCCUPATIONAL ENVIRONMENT AIR MONITORING
Date-Time 4-13-72
Contaminant Concentration Conditions
Per/Tri
10 ppm
12 mph South Wind
Ditto Ditto Ditto Ditto Ditto Ditto
Ditto Ditto Ditto Ditto Ditto Ditto
10 ppm < 10 ppm < 10 ppm < 10 ppm < 10 ppm < 10 ppm
Ditto Ditto Ditto Ditto Ditto Ditto
4-13-72 Ditto
Vinyl Chloride
Ditto
None Detected 12 mph South Wind
Ditto
Ditto
Method Unico Gas Detection Tubes Ditto Ditto Ditto Ditto Ditto Ditto
Ditto Ditto
L D -L L 2 1 D /1 6
SL 093317
"V- t. Organics Area
Points
47i LD-U21D/17
SL 093318
LD-1121D/l8
Asbestos in Air
Personnel
Diaphragm Cell Repair
Sampler worn by Depositor during 3-5 hours of' work routine - fluffing asbestos and slurry making.
Date (4-3-72)
(4-6-72)
______ Concentration 0.22 fibers > 5 microns/ml
0.24 fibers > 5 microns/ml
Insulator - Maintenance
Insulating experimental Cla Cell with t'nermobestos (3 hours). Involved much cutting and fitting.
(4-5-72)
0.30 fibers > 5 microns/ml
Insulating in DH Plant. Very
little cutting. Fitting pre-cut pipe insulation with thermobestos (2 hours).
(4-5-72)
0.15 fibers > 5 microns/ml
SL 093319
LD-1121D/5
{PROPOSED LIMITS F0 HEAT-MORk S7Ri
'(Source. : AC<=>tH'/c?:7/')
SL 093320
31A-130
Table 12 PPG INDUSTRIES, INC. INDUSTRIAL CHEMICAL DIVISION LAKE CHARLES, LOUISIANA
. LD-U21D/19
Heat Analysis - Baseline Environmental Data
Unit Date
') Mercury Circuit_____________ ' 4/17/72
Subtask Shift
Cut Out Crew Men Day
Location No. 1 thru 6 (See note for locations.)
Subtask Description Formal Rest Breaks (excluding lunch):
2 X l/2 hours
Body Position: 40 # Walking X 2.5 = 60 $ Standing X 0.6 =
1 K cal/min
*
0.4 K cal/min
Work Type:
With body/moderate Basal Metabolism
5 K cal/min 1 K cal/min
Total: 50 $ Rest Each Hour Permissible Heat Exposure TLV:
T.4
Observed Heat Exposure:
Average of 8 hourly readings at 6 locations (48 temperatures)
X 60 =
K cal/hr
83 (wbgt)
xxxx (whet)
F F
8l.2 (wbgtj
F
SL 093321
31A-130
1'
'>
. ` Table 12
PPG INDUSTRIES, INC.
INDUSTRIAL CHEMICAL DIVISION - LAKE CHARLES, LOUISIANA
t
'' LD-li21D/20
Heat Analysis - Baseline Environmental Data
Unit Mercury Circuit Date 4/17/72
Subtask Shift
Cut Out '"'rew Men ,*
Evening
Location No. 1 thru 6 (See note for locations.)
Subtask Description Formal Rest Breaks (excluding lunch):
2
X l/2 hours
Body Position:
4o $> Walking X 2.5 = __________ 1K cal/min So ' $ Standing X 0.6 = ___________ oA________ ` K cal/min
Work Type:
With body/moderate5 Basal Metabolism
K cal/min __________ 1 K cal/min
Total: 50 $ Rest Each Hour Permissible Heat Exposure TLV:
7.4
Observed Heat Exposure:
Average of 8 hourly readings at 6 locations (48 temperatures)
X 6o =
83
(wbgt)
, 82.0 (wbgt)
_ K cal/hr P F
SL 093322
-130
Table 12 PPG INDUSTRIES, INC. INDUSTRIAL CRITICAL DIVISION LAKE CHARLES, LOUISIANA
">
... '' :
LD-U21D/21
Heat Analysis - Baseline Environmental Data
Unit Date '
Mercury Circuit ~___________ A/18/72
Subtask ShiPt
Cut Out Crew Men Day
Location No. 1 thru 6 (See note for locations)
Subtask Description Formal Rest Breaks (excluding lunch):
2 X l/2 hours
Body Position:
kO # Walking X 2.5 = ______ _____ 1K cal/min
*
60 $ Standing X 0.6 *
O.A K cal/min
Work Type:
With body/moderate Basal Metabolism
___________ 5K cal/min _1K cal/min
Total:
___________7.A
X 60 =
AAs
5 $ Rest Each Hour Permissible Heat Exposure TLV:
Observed Heat Exposure:
.. '
83*F
(wbgt)
K cal/hr
Average of 8 hourly readings at 6 locations (A8 temperatures)
_______ 83.6
F
(wbgt)
SL 093323
31A-130
I
Table 12
PPG INDUSTRIES, INC. INDUSTRIAL CHEMICAL DIVISION
'
LAKE CHARLES, LOUISIANA
' . . LD-1121D/22
Heat Analysis - Baseline Environmental Data
Unit
Mercury Circuit______________ Subtask
Cut Out Crew Men
Date . 4/18/72 Shift
'Evening Location No. 1 thru 6 (See note for locations.)
Subtask Description Formal Rest Breaks (excluding lunch):
2 X l/2 hours
Body Position:
Lq ia Walking X 2.5 - ]K cal/mln 60 ' $> Standing X 0.6 = ______ 'o.t
K cal/min
Work Type;
With body/moderate Basal Metabolism
___________ 5K cal/min __________ 1__ K cal/min
Total;
___________ 7.4
X 60 =445________ ___ K cal/hr
50 $ Rest Each Hour Permissible Heat Exposure TLV:
Observed Heat Exposure: Average of 8 hourly readings at 6 locations (48 temperatures)
85*F (wbgt)
85.6 (wbgt)
F
SL 093324
51A-130
Table 12 PPG INDUSTRIES, INC. INDUSTRIAL CHEMICAL DIVISION LAKE CHARLES, LOUISIANA
'
LD-1121D/25
Heat Analysis - Baseline Environmental Data
Unit Date
'.Mercury Circuit_____________ Subtask
Adjustment Crew
4/17/72 Shift
Day
Location No. 1 thru 6 (See note for locations.)
Subtask Description Formal Rest Breaks (excluding lunch):
2 X l/2 hours
Body Position:
25 $ Walking X 2.5 - .......
0-6
K cal/min
*
75 $ Standing X 0.6 = __________ n.s ______ K cal/min
Work Type:
Both Arms/Moderate Basal Metabolism
2.0 ___________1 K
K cal/min cal/min
Total:
___________ 4.1
X 60 =246K cal/hr
0 Rest Each Hour Permissible Heat Exposure TLV:
Observed Heat Exposure:
Average of 8 hourly readings at 6 locations (48 temperatures)
____
84* *F
(wbgtj
' 81.2
F
("wbgt")
SL 093325
31A-130
Table 12 PPG INDUSTRIES, INC.
INDUSTRIAL CHEMICAL DIVISION LAKE CIIARLES, LOUISIANA
* 4
'\
Heat Analysis - Baseline Environmental Data
LD-1121D/24
Unit Date
Mercury Circuit
Subtask
Adjustment Crew
4/17/72
Shift
Evening
Location No. 1 thru 6 (See note for locations)
Subtask Description
Formal Rest Breaks (excluding lunch): 2
x l/2 hours
Body Position:
25 $ Walking X 2.5 = ___________ 0^6K cal/min
*
75 ' $> Standing X 0.6 =
0.5K cal/min
Work Type:
Both Arms/Moderate 2.0K cal/min
Basal Metabolism
___________1 K cal/min
Total:
_________ 4.1
X 6o =246
O' $ Rest Each Hour
Permissible Heat Exposure TLV:
' __________ 84*F (ubgt)
Observed Heat Exposure:
Average of 8 hourly readings at 6 locations (48 temperatures)
82.0 (wbgt)
K cal/hr F
SL 093326
-150
Table 12 PPG INDUSTRIES, INC.
INDUSTRIAL CHEMICAL DIVISION LAKE CHARLES, LOUISIANA t
Heat Analysis - Baseline Environmental Data
LD-1121D/25
Unit Date
Mercury Circuit
Subtask
Adjustment Crew
4/18/72
Shift
Day __________
Location No. 1 thru 6 See note for locations)
Subtask Description Formal Rest Breaks (excluding lunch):
2 X 1/2 hours
Body Position:
25 % Walking X 2.5 = ___________ 0.6
75 ' % Standing X 0.6
0.5
K cal/min 'K cal/min
Work Type:
Both Anns/Moderate ~2.0, K cal/min
Basal Metabolism
_1K cal/min
Total;
4.1
X 60 =246
K cal/hr
Q~ $> Rest Each Hour
Permissible Heat Exposure TLV:
' 84^F
(wbgt)
"
Observed Heat Exposure:
Average of 8 hourly readings at 6 locations (48 temperatures)
j________ 85.6 (wbgt)
F
SL 093327
2U-130
Table 12 PPG INDUSTRIES, INC.
INDUSTRIAL CHEMICAL DIVISION LAKE CHARLES, LOUISIANA
'
; : ' LD-1121D/26
Heat Analysis - Baseline Environmental Data
Unit Date
'Mercury Circuit______________ Subtask
Adjustment Crew
4/18/72 Shift
Evening
Location No. 1 thru 6 (See note for locations.)
Subtask Description Formal Rest Breaks (excluding lunch):
^X
hours
Body Position: 25 $ Walking X 2.5 = 78 1 $ Standing X 0.6 =
Work Type: Both Arms/Moderat e Basal Metabolism
Total:
O' % Rest Each Hour
Permissible Heat Exposure TLV:
0.6 0.5
2.0 1 4.1
Observed Heat Exposure:
Average of 8 hourly readings at 6 locations (48 temperatures)
K cal/min *
' K cal/min
K cal/min K cal/min
X 60
246____
K cal/hr
' 84 (wbgt)
*F
83.6
---------
F
SL 093328
listtcaRy
Ct/?curr
He/jt Stress
Sample Leonov
L D -1 1 2 1 D /2 7
SL 093329
Table 1?
PP3 INDUSTRIES, INC. INDUSTRIAL CHEMICAL DIVISION
LAKE CHARLES, LOUISIANA
LD-1121D/28
Heat Analysis - Baseline Environmental Data
Unit Date
Diaphragm Circuits__________ Subtask
Cut Out Crew
5/4/72 Shift
Day
Location No. 1 thru 6 (See note for locations.)
Subtask Description Formal Rest Breaks (excluding lunch):
Q
X _______ hours
Body Position: 50 $ Walking X 2.5 = _______ 0.75 ' .... K cal/min 70 ' $ Standing X 0.6 = ______ 0.4' K cal/min
Work Type:
Both arms/moderate ______
2,0K cal/min
Basal Metabolism
__________ 1 K cal/min
Total:
4.15
X 60 = 24q
T5 $ Rest Each Hour Permissible Heat Exposure TLV:
**
Observed Heat Exposure:
Average of 8 hourly readings
at 6 locations (48 temperatures)
8<?.5 , (Vbgt)
_________ 84.2 (wbgt)
K cal/hr 8F
SL 093330
-130
Table 13 PPG INDUSTRIES, INC. INDUSTRIAL CHEMICAL DIVISION LAKE CHARLES, LOUISIANA
-
LD-1121D/29
Heat Analysis - Baseline Environmental Data
Unit ______ Diaphragm Circuits_________
Date '
5/V72
Subtask Shift
Cut Out Crew Evening ______
Location No. 1 thru 6 (See note for locations)
Subtask Description Formal Rest Breaks (excluding lunch):
Q X _______hours
Body Position:
30 in Walking X 2.5 = ___________ n.7S________ K cal/min
70 $ Standing X0.6 =
0.4' K
cal/min
Work Type:
Both arms/Moderate ______
2.0K cal/min
Basal Metabolism
__________ 1_ K
cal/min
Total:
4.IS
X 60 =p4o
_________ K cal/hr
75 % Rest Each Hour
Permissible Heat Exposure TLV:
89.5 (wbgt)
F
Observed Heat Exposure:
Average of 8 hourly readings at 6 locations (48 temperatures)
'_______ 86.3
(wbgt)
F
SL 093331
31A-150
Table 13
PPG INDUSTRIES, INC. INDUSTRIAL CHEMICAL DIVISION
LAKE CIIARLES, LOUISIANA
4t
'V
LD-1121D/30
. ,,
1*
Heat Analysis - Baseline Environmental Data
Unit Date
`Diaphragm Circuits
Subtask
Cut Out Crew
5/5/72
Shift
Day
Location No. 1 thru 6 (See note for locations.)
Subtask Description Formal Rest Breaks (excluding lunch):
0
X hours
Body Position:
30 $ Walking X 2.5 " 70 ' $> Standing X 0.6 =
0.75 K cal/min 0.4' K cal/min
Work Type:
Both arms/moderate . Basal Metabolism
2.0
K cal/min
__________ 1___________ K cal/min
Total:
__________ 4.15
X 60
249
K cal/hr
75 $ Rest Bach Hour Permissible Heat Exposure TLV;
Observed Heat Exposure: Average of 8 hourly readings at 6 locations (48 temperatures)
_________ 89.5 (vbgt)
*F
85.0 (wbgt)
F
SL 093332
-130
'. Table 13
PPG INDUSTRIES, INC. INDUSTRIAL CHEMICAL DIVISION
LAKE CJIARLES, LOUISIANA
.
'' : . Lpr1121D/31
Heat Analysis - Baseline Environmental Data
Unit
Diaphragm Circuits_________ Subtask
Cut Out Crew
Date ______3/5/T2 ShiPt
Evening
Location No. 1 thru 6 (See note for locations)
Subtask Description
Formal Rest Breaks (excluding lunch): 0 X _____ hours
Body Position:
50 $ Walking X 2.5 __________ 0.75
70 ~ $> Standing X 0.6 =
0.4
K cal/min K cal/min
Work Type:
Both arms/Moderate Basal Metabolism
2.0
K cal/min
1K cal/min
Total:
___________ 4.15________ X 60 *= PkyK cal/hr
75 $> Rest Each Hour
Permissible Heat Exposure TLV:
' 89.5 F --(vbSr--
Observed Heat Exposure:
.
Average of 8 hourly readings at locations (48 temperatures)
'_______ 86.8 (vbgt)
aF
SL 093333
D /A PtfM M
L&jilL
heat STH55
SAft?L LQa\T}oX!5
. k -305
ajls)
S3
V
L D -1 1 2 1 D /3 2
SL 093334