Document DG5yk4GyDvQa4bjG5NoJ2ZJLO
July 29, 1992
Dow U.S.A
The Dow Chemical Company P 0 Box 150
Plaguemine, Louisiana 70765-0150
Daniel Cortez Eddie Guillory
Petrin Petrin
Building 4106
cc: Rock Gustin
LHC II
Building 4801
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,
DarleneS. Creel Industrial Hygiene Ext. 6181 Building 3502-E
Attachment
dsc
produced for the asbestos database
D0 A 114839 CONFIDENTIAL
LOUISIANA DIVISION INDUSTRIAL HYGIENE SAMPLE RECORD
SAMPLE N2 1 4071
PLANT/DEPT. _ MONITORING FOR'
DATE / OTHER CHEMICALS PRESENT: _
SAMPLE COLLECTION MEDIA: ''BADGE NO.
TYPE,
TEMP/HUMIDITY: (REQUIRED FOR BADGES), CHARCOAL TUBE RI7E
''FILTER CASSETTE SI7F.Z-.i-
SILICA TUBE
SIZE____________________
DRAGERTUBE
TYPE___________________
OTHER _______________________________________
SHIFT.
0'SHR. 12 HR. PERSONNEL SAMPLE
0'FL/LL SHIFT TWA O STEL/TASK
AREA SAMPLE \
EMPLOYEE NAME
-30.EMPLOYEE I.DmJUK.
JOB CLASSIFICATION
IiHn JjOudB CuOuuDEc w
--.
CONTRACTOR COMPANY
_
RESPIRATOR USED7 OYff NO
RESPIRATOR MODEL / CANISTER TYPE
MOUTH-BIT
DUST
77/la ''HALF-FAJ2S
FULL-FACE
AIR-LINE SCBA
DESCRIPTION OF AREA SAMPLED/JOB PERFORMED DURING MONITORING
XI
7'UmFiPUMP SERIAL NO. J2.
CALIBRATION DEVICE
BBLEMETER
OTHER_________
ROTAMETER
PUMP FLOW RATE CALIBRATION:
BEGIN. 1. jL# 9>L
2
3 BEGINNING FLOW RATE AVG.3'TOO
ENDING. 1 / ?
43AlM_
3 /,?.,rtf
ENDING FLOW RATE AVG. / ? Cl
S' CC/MIN L/MIN
- nrv
\ O-tC/MIN L/MIN
SAMPLE AVERAGE FLOW RATE
13SL
TIME STARTED. Xiao. TIME STOPPED. f- ic
TOT. RUNNING TIME(MIN).
'i.T
SAMPLE VOLUME (AVG FLOW X RUN TIME) *7~77' -
-ST
ANALYTICAL REPORT REEFFEERREENNCCEEi# ANALYTICAL RESULTS:
ap-lsor.
' RESTRICTED FOR USE WITHIN DOW ONLY '
Lo D
-T.j<o0Q^9
FORM FILLED IN BY
LOUISIANA DIVISION INDUSTRIAL HYGIENE SAMPLE RECORD
SAMPLE N2 1 40 9 4
PLANT/DEPT.
t f4\C IT
MONITORING FOR
DATE-------------------------------------- ISjJj-f1 >------
F. faf'S
OTHER CHEMICALS PRESENT.---------------------------------------------------------------------
SAMPLE COLLECTION MEDIA; BADGE NOTYPE-
TEMP/HUMIDITY. (REQUIRED FOR BADGES)
CHARCOAL TUBE SIZE
O' filter cassette si7f
s' r*yn
SILICA TUBE
SIZE____________________ _____
DRAGERTUBE
TYPE ............ .............................
OTHER
SHIFT: 3^ HR D12HR. '"PERSONNEL SAMPLE AREA SAMPLE
FULL SHIFT TWA STEL/TASK
employee name 'TV-jupr
___________________
EMPLOYEEI.D.#
H 35-19 - fjS'.j-j
--------------------------------------
JOB CLASSIFICATION
XT*FlaAr _
IH JOB CODE #__________________
,
CONTRACTOR COMPANY___________Kt4r.*______ LaXp.----------------------- _
PUMP SERIAL NO. CALIBRATION DEVICE:
^ A-- 9`SUBBLEMETER
ROTAMETER
OTHER________________________________
PUMP FLOW RATE CALIBRATION;
BEGIN: 1. >riLr
^ri<i
K JYll----
BEGINNING FLOW RATE AVG. S~i Y ENDING. 1 a HUM
2 JT.
3.IM
ENDING FLOW RATE AVG. ^-i
O^CC/MIN 0 l/MIN
9'Wf'
"tC/MIN L/MIN
SAMPLE AVERAGE FLOW RATE
TIME started
//? A>0 fr'V_________
TIME STOPPED
10 ^ 0 *""1
TOT. RUNNING TIME(MIN)
,TO
--
RESPIRATOR USEDT 3"YES NO
,,
//
RESPIRATOR MODEL/ CANISTER TYPE MOf**-____ "} 7PQ_____LV//WP
MOUTH-BIT
DUST
0"TlALF-FACE
/
SAMPLE VOLUME (AVG FLOW X RUN TIME)
FULL-FACE
AIR-LINE SCBA
DESCRIPTION OF AREA SAMPLED/JOB PERFORMED DURING MONITORING _
jC ,
7tuMd?._____________________
"3
ANALYTICAL REPORT REFERENCE *
ANALYTICAL RESULTS:
OW'D____ ___ _______
RESTRICTED FOR USE WITHIN DOW ONLY *
.
_______
LbO
7
P.'S)
FORM FILLED IN BY:
DO A 114840 CONFIDENTIAL
ASBESTOS MONITORING DATA RESULTS: LHC 11 1M2
"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
DUR(M1N)
6/15/92
14071 *436-74-3503 Insulator: WET METHOD used while removing Asbestos from 1" pipe
30
7/17/92
14094 *433-19-6528 Insulator: WET METHOD used while removing insulation from 3" steam line
30
VQL(L) 58 76
"LOD FIB/CC
0.03
<0.01
"*LOQ FIB/CC
<0.68
<0.51
* The proper protective clothing was worn during the job. North 7700 Respirator with HEPA filters were worn during the job.
Note: The Limit ot 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 too 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 ot Quantitation were expressed, the minimum reportable result would calculate to be 0.04 Fibers per cc for an 6-hr. Time weighted average sample at a flow rate of 2 titers 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
00 M l ) 4d4 i f.ONFTDrNITTAl