Document X71yg38ypk4pzqN9q07DoBawG

p EST-PAINE NJaMoyaXotieA wc., 7979 GSRI AVE. BATON ROUGE, LA 70820 \ ASBESTOS FIBER COUNT ANALYSIS FOR DOW CHEMICAL Industrial Hygiene Bldg. 3502W Post Office Box 150 Plaquemine, LA 70764-0500 ATTENTION: Mr. Darlene Creel February 19, 1992 klb V 20-1291 CO A 114623 CONFIDENTIAL A Member of the Inchcape Environmental Group J p ZEST-PAIN E JaSouvtotieA me. 7979 GSRI AVE. BATON ROUGE, LA 70890 DOW CHEMICAL Plaquemine, LA February 19, 1992 Five (5) filter cassette samples were received on February 14, 1992 from Dow Chemical for fiber count. One (1) filter cassette sample was unable to be analyzed. 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 II: 13906 13907 13905(1) Blank #1 Blank #2 15 11 0 0 100 100 7,357 5,395 100 <490 100 <490 to wet filter. 20-1291 Philip W. West, Ph.D. Laboratory Director A 114624 CONFID,\jtt^| A Member of the Inchcape Environmental Group WEST PAINE LABORATORIES INC. 7973 GSR1 AVE. BATON ROUGE, LA 70820 ^ ro#_ rl -4(0^ MSI Sample I.D.: ^)1%L //3?or/ ^ / r?>9o ~lT/ -----------^rm^nmr CHAIN-OF-CUSTODY RECORD SAMPLE COLLECTION: Collector's Name: Darlene S. Creel Telephone: (5041 389-6181 Company Name: Dow Chemical (Industrial Hvgiene Bide. 35Q2W) 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 Poto^.TI - # 13905 _________________ feWkA *1 P. *2._________ SAMPLE SHIPPING (other than transportation by collector): Transporter's Name: C-, ___________________ Date: :Time; It PC? Company Name: West Paine Courier_________________________ Address:__________ >__________________________________________ SAMPLE RECEIVING: Person accepting sample. PUsLd/ .Date; DZlK Company Name: WEST-PA1NE LABORATORIES. INC. Address: 7979 GSRIAVENUR BATON ROUGE. LOUISIANA 7Q820 PHONE:15041769-4900 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 114625 CONFTDFNTTAl.