Document JrwL95NEY4bVgKq2v7eK1xBev

Case: T8106-J PLAINTIFF'S EXHIBIT Beli Laboratories 600 Mountain Avenue Murray Hill, New Jerse, 07974 Pnone(201)532-3000 March 21, 1980 Mr. Raymond E. Clark New England Telephone Company 185 Franklin Street Room 1503 Boston, Massachusetts 02107 Dear Ray: The three bulk samples you sent to Mr. W. J. Schreibeis have been analyzed for asbestos. All samples were analyzed by both x-ray diffraction and dispersion staining microscopy. The results are as follows: Station Protection Backboard Analysis by x-ray diffraction revealed that the major chrystalline component of the backboard is chrysotile asbestos. Dispersion staining optical microscopy showed many birefringent fibers with the optical and morphological characteristics of chrysotile asbestos. Duct Insulation, Basement - 770 Elm Street, Manchester, New Hamphire Analysis by x-ray diffraction revealed that the major chrystalline component of this insulation is an amphibole form of asbestos, probably Cummingtonite-grunerite. Cummingtonite-grunerite asbestos is the mineralogical term for the commercial material commonly known as "amosite". Dispersion staining optical microscopy showed many birefringent fibers with the optical and morphological characteristics of asbestos. Heat Shield Blanket Analysis by x-ray diffraction revealed that the major chrystalline component of the heat shield blanket is chrysotile asbestos. Dispersion staining optical micros copy showed many birefringent fibers with the optical and morphological characteristics of chrysotile asbestos. CONFIDENTIAL 003599 Mr. R. E. Clark 2 Regarding your question as to whether or not the blanket is breaking down, I would say yes. Asbestos fibers were easily removed from the blanket and any shaking released fibrous material. Federal regulations have placed limits on the use of products or materials which contain or are made of asbestos because of the carcinogenicity associated with this material. Because of the health risks associated with the use of asbestos, it is recommended that the use of asbestos con taining blankets be discontinued and the blankets be properly disposed of. The existing asbestos blankets should be disposed of by placing them in heavy plastic bags and tying the end. Individuals performing this task should wear a respirator to prevent inhalation of free asbestos fibers. Plastic bags containing the asbestos blankets should be removed to an approved sanitary land fill suitable for disposal of this material.* If you have any further questions regarding handling and disposal of this material, please give me a call at (201) 582-7512. MH-8685-DR-sma Ref: 1143 Copy to R. E. Finn, M.D. - NET J. D. Ludwig R. L. Beach - AT&T N. J. DeCapua David Rainer Field Industrial Hygienist W. J. Schreibeis G. M. Wilkening These handling and disposal practices are consistent with fcuose recommended by AT&T in SL:RL 78-12, Disposal and Removal of Asbestos Gloves. 003600