Document 4KYKN8ZQ67Jy3eoXJORGaXyR
March 23, 1992
Dow U.S.A.
The Dow Chemical Company P 0, Box 150
Plaquemine, Louisiana 70765-0150
Daniel Cortez Eddie Guillory
Petrin Petrin
Building 4106
cc: Greg Miller
Glycol II
Building 5301
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 dsc
OO A 114660 CONFIDENTIAL
ASBESTOS MONITORING DATA RESULTS: GLYCOL II1992
**LOD ***LOQ
EXPOSURE GUIDELINES 0-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
3/9/92
13923
*456-26-3737 Insulator: Removing asbestos Insulation from 2* line WET METHOD USED
3/9/92
13920
*439-31-5689 Insulator: Removing asbestos insulation from 2" line WET METHOD USED
DUfifMlN) 30
VQL(L) 71
LOD FIB/CC
0.51
"*LOQ FIB/CC
<0.54
30 76 0.01 <0.51
* The proper protective clothing was worn during the job. North 7700 Respirator with HEPA titters were worn during the job.
Note: The Limit of 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 Flbers/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 berth Limit of Quantitation amt 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 8-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.
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LOUISIANA DIVISION INDUSTRIAL HYGIENE SAMPLE RECORD
SAMPLE N2 13920
PLANT/DEPT. C? f \lCO f
MONITORING FOR:.
A?5
PV
SAMPLE COLLECTION MEDIA:
BADGE NO._____
TYPE.
TEMP/HUMIDITY: (REQUIRED FOR BADGES).
CHARCOAL TUBE SIZE_________________
"FILTER CASSETTE SIZE ASM"!
a SILICA TUBE
SIZE__________________
DRAGERTUBE TYPE_________________
OTHER __________________________________
SHIFT: 0T8HR. 12 HR. CT PERSONNEL SAMPLE AREA SAMPLE FULL SHIFT TWA STEl/TASK
EMPLOYEE NAME. \P*>
EMPLOYEE I.D.#_ JOB CLASSIFICATION. IH JOB CODE#______ CONTRACTOR COMPANY.
blou,0/'J
Co '-f-
RESPIRATOR USED? S^ES NO (\jortkRESPIRATOR MODEL / CANISTER TYPE
0
MOUTH-BIT
DUST
"HALF-FACE
FULL-FACE
AIRLINE SCBA
DESCRIPTION OF AREA SAMPLED/JOB PERFORMED DURING MONITORING
DATE 3
OTHER CHEMICALS PRESENT:.
PUMP SERIAL NO. <j 7^6
CALIBRATION DEVICE: O'BUBBLEMETER OTHER________
ROTAMETER
PUMP FLOW RATE CALIBRATION:
BEGIN: 1.
2. art! 3.Z2Z2T
BEGINNING FLOW RATE AVG.^
m-.ENDING:!.. 2,_^Q1 3.Z2S2"
ENDING FLOW RATE AVG.
3TCC/MIN L/MIN g^CC/MIN L/MIN
SAMPLE AVERAGE FLOW RATE
2S22-
TIME STARTED to:no frM
TIME STOPPED TOT. RUNNING TIMEtMlN! *30
SAMPLE VOLUME (AVG FLOW X RUN TIME) 1 (&
Q/dtX>^h
^LgA**^ *
ANALYTICAL REPORT REFERENCE #
ANALYTICAL RESULTS:
w
* RESTRICTED FOR USE WITHIN DOW ONLY *
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DO
VP-124
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FORM FILLED IN
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DO A 114662 CONFTDFNTTAI.
LOUISIANA DIVISION INDUSTRIAL HYGIENE SAMPLE RECORD
G-LiSo / 'U'__
PLANT/DEPT. MONITORING FOR:
ft bit's
DATE, OTHER CHEMICALS PRESENT:
sample N2 13923
SAMPLE COLLECTION MEDIA:
BADGE NO.____
TYPE
TEMP/HUMIDITY: (REQUIRED FOR BADGES),
CHARCOAL TUBE SIZE_________________
O'TtLTER CASSETTE SIZE 3- T/Y7 M
SILICA TUBE
SIZE__________________
DRAGERTUBE
lj umcn
TYPE_________________
SHIFT: O'lfHR. Ol2HR. 0^PERSONNEL SAMPLE 0 AREA SAMPLE
FULL SHIFT TWA 0 STEL/TASK
EMPLOYEENAME
EMPLOYEE ID# 4 f(j-
- ~Z>1 b 1
JOB CLASSIFICATION. JsS.ute/or
IH JOB CODE #______ CONTRACTOR COMPANY
'T-hfr'.t
C'P
RESPIRATOR USED? 0^ES NO t/orH- 110Q
RESPIRATOR MODEL / CANISTER TYPE
O MOUTH-BIT
0 DUSTT
n0 HHAALI FF--FFAACrEF
0TULL-FACE
0 AIRLINE SCBA
DESCRIPTION OF AREA SAMPLED/JOB PERFORMED DURING MONITORING
PUMP SERIAL NO. QlRtf
CALIBRATION DEVICE: S-SOfiBLEMETER OTHER________
ROTAMETER
PUMP FLOW RATE CALIBRATION: BEGIN: 1. 2. j.<T (jj
3. ^ BEGINNING FLOW RATE AVG. ? f?/
ENDING: 1. 2. 0
3
ENDING FLOW RATE AVG. 2 1 HR
er'cc/Mm a l/min ^ If ft
0"cc/min L/MIN
SAMPLE AVERAGE FLOW RATE
^(t'
TIME STARTED TIME STOPPED
(0. VS~
TOT. RUNNING TIME(MIN) _
/k^x-
SAMPLE VOLUME (AVG FLOW X RUN TIME)
~1 (