Document RpGyvM1xegbx31OmDRvzDNn5a

p ESTPAINE JubotcutinieA inc 7979 GSRI AVE BATON ROUGE, LA 70820 ASBESTOS FIBER COUNT ANALYSIS for DOW CHEMICAL COMPANY Post Office Box 150 B-3502E Hwy 1 Plaquemine, Louisiana 70764 ATTENTION: Jackie Paul February 12, 1988 DO A U650A CONFTDFNTlAl lab 88-1014 PSMLP'. 'EST-PAINE jJabouitcnieA inc. _ 7979 GSRI AVE. BATON ROUGE, LA 70B20 DOW CHEMICAL COMPANY Plaquemine, Louisiana February 12, 1988 Sixteen (16) filter cassette samples were received on February 10, 1988, from Dow Chemical Company for asbestos fiber count. Fibers larger than 5 microns in length were counted by means of phase-contrast microscopy at a magnification of 4 00X. The procedure recommended by NIOSH Method 74 00A was followed. Pertinent information regarding.fiber counts is as follows: Field Area: 0.00785 min (Walton Beckett Graticule) Effective Collecting Area: _ 385 rrmu (25mm Cassette) 855 mrt (37mm Cassette) Limit of Quantitation: 10 fibers/100 fields Limit of Detection: > Average Blank Count * Detection limits are based upon a minimal count of fibers/100 fields. 10 Results are as follows: SamDle ID. Fibers (>5um) Observed NO. Of Fields Observed Fibers per Filter Volume of Air (L1) Fibers (>5um) per c.c. of Air 08771 08773 08780 (#1) 08781 08782 08792 08793 08794 08795 08796 (#2) 08797 08799 43 13 6 100 13 3 100 2 31 68 32 100 21,089 100 6,376 100 2,943 21 233,550 100 6,376 100 1,471 52 94,313 100 981 100 15,204 100 33,351 100 15,694 DO A 116500 00NFTDFNTT A1 DOW CHEMICAL U.S.A. ]' : l> r>ir',fi f I \ I i !. !: : !" UP C,r1:!. r .".m 11 'Vi ] riv -i,f a ,7. 19 i. (I! i i" i n ,1 l i-iI !1:1 m ! <1 ! ; [, -1'I,-.. [ i f O! |l i i. ar<la hi i'.!l ,1 c: n !' m : Wi: V t ;i" I :C) F A f (.: i- 3 F 79 7 V GSP J hhi hUI. BiVIOf KCaai.r mnj -mCnD -- GuD o CD GuD vs== W s l FEB 1 01989 finalized DO A 1 1 roNr j or NTT aV AN OPERATING UNIT of THE DOW CHEMICAL COMPANY