Document 3e9kGdmyrx6d1144QvNMjYeZn
p
est-paine
i^JcUfQtcUotieA inc. ,
7979 GSRI AVE. BATON ROUGE, LA 70820
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ASBESTOS FIBER COUNT ANALYSIS
FOR
DOW CHEMICAL Industrial Hygiene Bldg. 3502
Post Office Box 150 Plaquemine, LA 70764
W
ATTENTION: Ms. Darlene Creel
March 02, 1992
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20-1716 DO A 114626
CONFIDENTIAL
A Member of the Inchcape Environmental Group
ESTPAINE JaboycUoxleA inc. i
7979 GSRI AVE- BATON ROUGE, LA 70B20
DOW CHEMICAL Plaquemine, LA
March 02, 1992
Four (4) filter cassette samples were received on February 26,
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 Quanititation:
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
Power 1: 13914
Power II: 13915 Blank #1 Blank #2
2
0 0 0
100
981
--
100 100 100
<490 <490 <490
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20-1716 N.
UU. UXLJ ^ Philip vf. West, Ph.D.
Laboratory Director
A Member of the Inchcape Environmental Group
DO A 114627 CONFIDENTIAL
-/
WEST PAINE LABORATORIES INC. 7979 GSK1 AVE. BATON ROt'GE, LA 70820
po,JME
MSI # Sample l.D.:
Tqu^iTL -
CHAIN-OF-CUSTODY RECORD
SAMPLE COLLECTION:
Collector's Name: Darlene S. CreelTelephone: (504) 389-6181
Company Name: Dow Chemical (Industrial Hygiene Bldg. 3502W)
Address: P.O. Box 150. Plaquemine. Louisiana 70765-0500______________________
Date Sampled: 5 -
________________________ Time:
Type of Process or Facility Sampled: Fiber count via NIOSH 7400 ^3LS tne>i
Field Information: Filter cassettes for fiber per filters
m\anKa I /Slant
SAMPLE SHIPPING (other than transportation by collector):
Transporter's Name:,
Date:
Time: iV'cS^W
Company Name: West Paine Courier
Address:________,____________________
SAMPLE RECEIVING:
Person accepting sample.
.Date:.
Company Name: WESSTT-PAINE LABOORRAATTCORIES. INC.
Address: 7979 GSRIAVENUE. BATON ROUGE. LOUISIANA 70820 FHONE:(5Q4) 7694900
Sample Disposition
StorageFurther TransportationOther.
CHAIN-OF-POSSESSION: (Attach additional sheets as needed to show continuity)
TERMINATION OF CHAIN OF CUSTODY:
Authorized by:Date:Time:,
Company/Name:Address:
DO A 11.4628 CONFIDENTIAL