Document YrdZw7beYNNkaNQ1MBawbVYwK

HAGER LABORATORIES, INCORPORATED ANALYTICAL SERVICES FOR INDUSTRY REPORT ON SERVICE NUMBER May 16, 1984 JZ7/2. =2^/552, =2`7S\SU? 11344 D. H. MORMAN MAY 2 i 1984 PLAINTIFF'S EXHIBIT To: Analysis: Method: D. H . Morman Shell Development Co. Denver, CO The following samples were submitted for analysis: Eighteen membrane filter samples and two blanks for asbestos count. ASBESTOS (count) The as bestos c ontent of each filter sample was analyzed follow ing NIOSH procedure P4CAM 239. Wedges from each filter were ex amined at 450 power us ing polarizing and phase contrast microscopes. Birefri ngent fibers longer than f ive (5) microns with a length- to-width ratio of 3:1 or more we re counted as asbestos Sample Number Total Fibe rs Air Vol. Air Cone. (liters) (fibers/cc) Rig 040684-1 Rig 040684-2 Rig 040684-3 Rig 040784-1 15000 13000 28000 28000 1410 1380 1390 1430 0.01 0.009 0.02 0.02 Rig 040784-2 Rig 040784-3 Rig 040784-5 30000 19000 11000 1420 1420 1410 0.02 0.01 0.008 Rig 040784-6 12000 1410 0.009 Rig 040784-7 Rig 040884-1 15000 34000 1410 1410 0.01 0.02 LAM 028689 4725 Paris Street/Denver, Colorado 80239/(303) 371-1441 ABS-04757B "' Page 2 SN11344 Shell Development May 16, 1984 D. H. MORMAN MjAV 211384 Results: (cont.) Discussion: Sample Number Total Fibers Air Vol. Air Cone . (liters) (fibers/cc) Rig 040884-2 14000 1410 0.01 Rig 040884-3 LT(5100) 1410 L T(0.004) Rig 040984-1 14000 1440 0.01 Rig 040984-2 18000 1440 0.01 Rig 040984-3 11000 1440 0.008 Rig 040984-4(5) 14000 1410 0.01 Rig 040984-7 17000 1410 0.01 Rig 040984-6 42000 1410 0.03 The 0SHA permissible exposure limit (PEL) for asbestos is 2 fibers/cc. Sample RIG 040984-4 was not received, sample RIG 040984-5 was received but not listed in the data sheet. LT( ) indicates "less than" with the lower limit of quantification shown in parentheses. Laboratory data are filed and available upon request. Submitted by: David F. Farler Laboratory Director DFF/nl LAM 028690 ABS-047579