Document dQjgZqGZ4GLYVBxBe78E4Rgkb

p 7EST-PAINE JgJ)OlltoUA INC., 7978 GSRI AVE. BATON ROUGE, LA 70820 agb V. ASBESTOS FIBER COUNT ANALYSIS FOR DOW CHEMICAL Industrial Hygiene Bldg. 3502 W Post Office Box 150 Plaguemine, LA 70765-0150 ATTENTION: Ms. Darlene Creel September 11, 1992 A Member of the Inchcape Environmental Group 206795 oo A 114573 CONFIDENT! Al p est-paine ^^\Ja6ouztotiedwc., 7979 GSRI AVE. BATON ROUGE. LA 70920 \ DOW CHEMICAL Plaquemine, LA September 11, 1992 Three (3) filter cassette samples were received on September 9, 1992 for 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 CELLULOSE: 15436 Blank #1 Blank #2 4 0 0 No. of Fields Observed 100 100 100 Fibers per Filter 1,962 <490 <490 Volume of Air (L) Fibers (>5um) per c.c. of Air agb V* f Philip'w. West, Ph.D.1^ Laboratory Director A Member of tht Incbcap* Environmental Group 206795 D0 A 11.4574 CONFIDENT! Al. s WLjJ' PAINE LABORATORIES INC. 7979 GSR1 AVE. BATON ROUGE, LA 70820 Sample l.D.: CHAIN-OF-CUSTODY RECORD SAMPLE COLLECTION: Collector's Name: Darlene S. Creel_________________ Telephone: f504) 389-618L Company Name: Dow Chemical (Industrial Hveiene Bide. 35Q2W1 Address: P.O. Box 150. Plaquemine. Louisiana 70765-0500 Date Sampled:. Time: Type of Process or Facility Sampled: Fiber count via NIOSH 7400/? Field Informalibn: Filter cassettes for fiber per filters CoOSmQq<lJl #15efcSU 'aVxnlf#/ > SAMPLE SHIPPING (othpr than transportation by collector): Transporter'sName^//^' __________ Date:, Time: j3frr) Company Name: West Paine Courier Address:. La/ . S~t, SAMPLE RECEIVING: Person accepting sample. Dale::: Cn/cQ fa /330 Company Name: WEST-PAINE LABORATORIES. INC. Addresy 7979 GSR1 AVENUE BATON ROUGE. LOUISIANA 70820___ PHONTE.f5Q41769-4900 Sample DispositionStorageFurther TransportationOther___ CHAIN-OF-POSSESSION: (Attach additional sheets as needed to show continuity) TERMINATION OF CHAIN OF CUSTODY: Authorized by:_____________________________ .Date:. 00 A 114575 CONFIDENTIAL Time: Company/Name:. .Address:.