Document 7Oy117qdb4oBZ6NrrmvZGQnnj

case 48106-3 Bell Laboratories 600 Mountain Avenue Murray Hilt. New Jersey 07974 Phone (201)582-3000 July 24, 1979 , Mr. John J. Rourke Manager - OSHA New England Telephone Company 185 Franklin Street, Room 1503 3oston, Massachusetts 02107 PLAINTIFF'S EXHIBIT Dear John: The bulk sample you sent from 350 Cochituate Rd., Fraraington, Ma. (storeroom with open celling with asbestos sprayed-on) has been analyzed for asbestos. An x-ray diffraction scan of the material revealed a major crystalline portion to be chrysotile. An optical examination of the material by polarized light microscopy and dispersion staining revealed the presence of many asbestiform birefringent fibers. The dispersion staining characteristics of these fibers were similar to those of chrysotile. The results of the air samples are: Sample 613957-1 613957-2 6169118-1 6189118-2 619957-1 619957-1'* 619957-2 619957-2'* Volume (liters) 450 300 399 330 360 360 390 390 Number Fibers per filter 6218 6995 10104 4664 10104 3109 3109 3886 Concentration (Fibers/cc) .01 .02 .02 .01 ' .03 .009 .008 .01 These are the mislabelled samples. CONFIDENTIAL 003744 John J. Rourke - 2 r-~a.se feel free to call should you have any questions concerning the results. Sincerely, V/ cJCt ^ tcrlii*'- :'J-:-73B5-VRC-rl Vicki R. Cohen Cony to R. L. Beach - AI&I J. I'!. Degen TWI CT f* hn J. DeCapua R. vi. Stone, M.D. SP . *-5 . Lichtenwalner - BTL . Schreibeis . Wilkening |jJ C l . Finn, M.D. . Ludwig CONFIDENTIAL 003745