Document ym2NagZN71E4e40vXV4YDqG4r
P??ulP' EST-PAINE JcubotaiotleA inc.
7979 GSRl AVE. BATON ROUGE, LA 70820
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ASBESTOS FIBER COUNT ANALYSIS
FOR
DOW CHEMICAL Industrial Hygiene Bldg. 3502 W
Post Office Box 150 Plaquemine, LA 70764 ATTENTION: Ms. Darlene creel
April 29, 1992
DO A 114600 CONFIDENTIAL 20-3360
A Member of the Inchcape Environmental Group
p
rEST PAINE JabouxiaUeA inc. ,
7979 OSRI AVE, BATON ROUGE, LA 70820
DOW CHEMICAL Plaquemine, LA
April 29, 1992
Three (3) filter cassette samples were received on April 23,
1992 from Dow Chemical for fiber count. Fibers larger than 5
microns in length were counted by means of phase-contrast
microscopy at a magnification of 400X. The procedure recommended
by NIOSH method 7400A was followed.
Pertinent information
regarding fiber counts is as follows:
Field Area: 0.00785 mm2 (Walton Beckett Graticule)
Effective Collecting Area:
385 mm2 (25 mm Cassette)
855 mm2 (37 mm Cassette)
Limit of Quantitation: 10 fibers/100 fields
Limit of Detection: > Average Blank Count
@ Detection limits are based upon a minimal concentration of 7
fibers/mm2.
Sample I.D.
Fibers (>5um) Observed
No. of Fields observed
Fibers per
Filter
Volume of
Air (L)
Fibers (>5um) per c.c. of Air
Caustic: 13523 Blank #1 Blank #2
0 0 0
100 100 100
<490 <490 <490
-- -- --
-- -- --
20-3360
(fJ. (U.AJL,{
Philip W.'West, Ph.D. Laboratory Director
A Member of the Inchcape Environmental Group
DO A 114601 CONFIDENTIAL
WEST PAINE
LABORATORIES INC. 7979 GSR1 AVE. BATON ROUGE, LA 70820
#po IS I
MSI Sample l.D.:
3 rb
CHAIN-OF-CUSTODY RECORD
SAMPLE COLLECTION:
Collector's Name: Darlene S, Creel
.Telephone: (504) 389-6181.
Company Name: Dow Chemical (Industrial Hygiene Blda. 3502W)
Address: P.O. Box 150. Plaquemine. Louisiana 70765-0500
Date Sampled:.
Time:
Type of Process or Facility Sampled: Fiber count via NIOSH 7400
Field Information: Filter cassettes for fiber per filters
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SAMPLE SHIPPING (other than transportation by collector):
: <RTransporter's Name;
Date:^A"o2!?^3.
Time: 'J&
Company Name: West Paine Courier
Address:.JIR_______
Brps
SAMPLE RECEIVING: Person accepting sample.
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PPRZ31^2-
Patel \'i
----- ^l^Time: ) V30
Company Name: WEST-PAINE LABORATORIES. INC.
Address: 7979 GSRI AVENUE. BATON ROUGE. LOUISIANA 70820 PHONE:(504) 7694900
Sample DispositionStorageFurther TransportationOther
CHAIN-OF-POSSESSION: (Attach additional sheets as needed to show continuity)
TERMINATION OF CHAIN OF CUSTODY:
Authorized by:
Date:Time:,
Company/Name:Address:
00 A 114602 CONFIDENTIAL