Document O1LYM2Xg8Y29J5xgDe64VnGZL
Dow U.S.A
The Dow Chemical Company P 0, Box 150
PlaQuemme. Louisiana 70765-0150
September 9, 1992
Daniel Cortez Eddie Guillory
Petrin Petrin
Building 4106
cc: Rock Gustin
LHC II
Building 4801
PRODUCED FOR THE ASBESTOS DATABASE PATE:
MASTER No.
l
Asbestos Monitoring
Enclosed are sample results for potential exposure to asbestos.
The OSHA 8-hour permissible exposure limit for asbestos is 0.2 f/cc >5 microns and the 30-minute short term exposure limit is 1 f/cc >5 microns.
The results displayed are based on sampling duration.
The data sheet shows the results of exposure using two methods, the Limit of Detection (LOD) and the Limit of Quantitation (LOQ). Included on the data sheet is an explanation of the method Limit of Quantitation.
Thank you,
Darlene S. Creel Industrial Hygiene Ext. 6181 Building 3502-E
Attachment
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DO A 114048 CONFIDENTIAL
LOUISIANA^DiyiSION INDUSTRIAL HYGIENE SAMPLE RECORD
SAMPLE |\|o 1 5 44 2
PLANT/DEPT
uf4l Jt__________________________ DATE f -I ? ~
MONITORING FOR:_______ C.'bf>_______________________________________
^_______ OTHER CHEMICALS PRESENT._,,------------------- _-------------------------------------- -
TEMPDEGREE F
-HUMIDITY
SAMPLE COLLECTION MEDIA BADGE
NO TYPE
3 CHARCOAL TUBE 9-FILTER CASSETTE SILICA TUBE DRAGER TUBE 3 OTHER __________
SIZE________________ SIZE SIZE________________ TYPE_______________
shift. 3-Thr. ft ,,
cKpersonnel sample area sample
3 FULL SHIFT TWA 3 STEL/TASK
-----------WIND DIRECTION
employeenamf
EMPLOYEEI.D #
' /<!
JOB CLASSIFICATION
irSv
IH JOB CODE# -- CONTRACTOR COMPANY
(r
T, noAS
RESPIRATOR USED' CTYES 3 NO
J
RESPIRATOR MODEL / CANISTER TYPE A/vr-ft. I/OO
14 wlfr&A
MOUTH-BIT
DUST
0" HALF-FACE
FULL-FACE
3 AIR-LINE O SCBA
DESCRIPTION OF AREA SAMPLED/JOB PERFORMED DURING MONITORING .
(LMf7vZ%hJ2-
PUMP SERIAL no CALIBRATION DEVICE^
_________ ObUBBLEMETER
3 ROTAMETER
3 OTHER _____________________________
PUMP FLOW RATE CALIB
BEGIN 1._ 2_ 3._
r/U_
drdr
BEGINNING FLOW RATE AVG.
(
ENDING I 2-HsJ
Z.
3 JWUE/
ENDING FLOW RATE AVG. >Sl/"^~
3<TfO
3"CC/MIN 3 l/min
szYj'O 3^C/MIN 3 L/MIN
SAMPLE AVERAGE FLOW RATE
TIME STARTED
I/O. 00
TIME STOPPED
tO/'M
TOT RUNNING TIMEIMIN1
__________ _________
SAMPLE VOLUME (AVG FLOW X RUN TIME)
v
3".A/' -
analytical report reference # ANALYTICAL RESULTS __________ MlO
RESTRICTED FOR USE WITHIN DOW ONLY *
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VfM24
48
FORM FILLED IN BY:.
LOUISIANA DIVISION INDUSTRIAL HYGIENE SAMPLE RECORD
PLANT/DEPT _ LH-c. xT
MONITORING FOR:
/f-5 UnJaS
F*. fa*/- s
DATE ?- ></-*?>OTHER CHEMICALS PRESENT
SAMPLE No 15437
TEMP
DEGREE F
HUMIDITY ,
SAMPLE COLLECTION MEDIA 3 BADGE NO,____
TYPE.
3 CHARCOAL TUBE SIZE.
3-FILTER CASSETTE SIZE. jjJCjajyL.
3 SILICA TUBE
SIZE.
3 DRAGERTUBE
TYPE.
3 OTHER ___________
SHIFT 3'8'hr 3 12 HR
O' PERSONNEL SAMPLE 3 FULL SHIFT TWA STEL/TASK
3 AREA SAMPLE __ WIND DIRECTION
EMPLOYEE NAME. EMPLOYEE I.D.# JOB CLASSIFICATION. IH JOB CODE # CONTRACTOR COMPANY.
'P-'+r.y Cvrp
RESPIRATOR USED' 3"?ES 3 NO
RESPIRATOR MODEL / CANISTER TYPE filer At 11 OO Uu/ltpa
3 MOUTH-BIT
3 DUSTr
3--TI3RAAILFC-F.AECEATCf
3 full-face
3 air-line 3 SCBA
DESCRIPTION OF AREA SAMPLED/JOB PERFORMED DURING MONITORING
PUMP SERIAL NO. j~l > '
CALIBRATION DEVICE CTBUBBLEMETER
3 ROTAMETER
3 OTHER______________________________
PUMP FLOW RATE CALIBRATION:
BEGIN 1
2.
3
?rTT
BEGINNING FLOW PATE AVG. J 5~i <4
FNDING.1.
2 ?y,:?..... ..
?rvy
"CC/MIN
3 L/MIN
[ENDING FLOW RATE AVG.. 3TYL3_ 3^CC/MIN 3 L/MIN
SAMPU AVERAGE FLOW RATE
Z^iuSi
TIME STARTED,
:h*\
TIME STOPPED.
.2 o.'-L'tn
TOT. RUNNING TIME(MIN). 'S~u>7TwT~
SAMPLE VOLUME (AVG FLOW X RUN TIME).
- Ua^S-
ANALYTICAL REPORT REFERENCE # AttdSQl*.
ANALYTICAL RESULTS:
Z-Hqp
'<0-0/
"~n5b
* RESTRICTED FOR USE WITHIN DOW ONLY *
VP 124
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FORM FILLED IN BY.
J? A 1 14849
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ASBESTOS MONITORING DATA RESULTS: LHC H 1992
**LOD ***LOQ
EXPOSURE GUIDELINES 8-HR. TWA LIMIT - 0.20 FIB/CC 30-MINUTE LIMIT = 1.0 FIB/CC LIMIT OF DETECTION = 7 FIB/MM2 LIMIT OF QUANTITATION = 100 FIB/MM2
DATE SAMPLE# PERSONNEL DESCRIPTION
8/13/92
15442 *433-19-6528 Insulator: Removing insulation from 3' line - WET METHOD USED
8/14/92 15437 *437-60-8864 Insulator: Removing insulation from 3" line - WET METHOD USED
DUR(MIN) VQL(L) 30 74 30 75
LOD FIB/CC
0.01
<0.01
***LOQ FIB/CC
<0.52
<0.51
* The proper protective Nothing was worn during the job. North 7700 Respirator with HEPA filters were worn during the job.
Note: The Limit ol Quantitation has been defined as 100 Fibers/MM2 using the minimum fiber loading criteria specified. In the NIOSH analytical method 7400, the stated range of the method is 100 to 1300 Fibers/MM2 filter area. Although samples below this range can be analyzed, the method has not been validated below 100 Fibers/MM2. However, the NIOSH method 7400 also establishes the estimated Limit of Detection as 7 Fibers/MM2 (Reference OSHA Std. 1910.1001, Appendix B). Based on this information, we will establish 100 Fibers/MM2 filter area as our Limit of Quantitation and 7 Fibers/MM2 filter area as our Limit of Detection (which is more representative of the actual fibers present) for asbestos monitoring. We will report both Limit of Quantitation and Limit of Detection.
If only Limit of Quantitation were expressed, the minimum reportable result would calculate to be 0.04 Fibers per cc for an S-hr. Time weighted average sample at a flow rate of 2 liters per minute and 0.6 fibers per cc for a 30 minute time weighted average short term sample at a flow rate of 2 liters per minute.
DOW CONFIDENTIAL
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