Document mmogx3eR4M2aanjeg0kynGNkk

Bulk Asbestos Analysis 4P106-3 Bell Laboratories 600 Mountain Avenue Murray Hill, New Jersey C797A Phone(201)532-3000 April 16, 1980 Mr. J. W. McClatchey Department Chief Western Electric Company 222 Broadway New York/ New York 10038 Dear Mr. McClatchey: The four bulk samples you mailed to Mr. W. J. Schreibeis from the 29th floor of 222 Broadway, have been analyzed for asbestos by x-ray diffraction. Sample number three was also analyzed by dispersion staining light microscopy. The results are as follows: Sample #1 Steam Pipe Covering The major chrystalline component of this sample as determined by x-ray diffraction is an amphibole form of asbestos, probably Cumingtonite. Cumingtonite is the mineralogical term for the asbestos commercially known as Amosite, an acronym for asbestos mines of South Africa. It is estimated that 40-50% of this sample is Cumingtonite asbestos. Sample #2 Steam Pipe Covering The two primary chrystalline components of this sample as seen by x-ray diffraction are an amphibole asbestos, probably Cumingtonite, and Phlogopite,. a none asbestos mineral. It is estimated that 20-40% of this sample is Cumingtonite asbestos. Sample #3 Cement Removed From Steam Pipe Covering The major chrystalline components of this sample are chrysotile asbestos a serpentine variety, and calcium CONFIDENTIAL 003602 Mr. J. W. McClatchey - 2 carbonate a none asbestos mineral as seen by x-ray diffraction. The identification of Chrysotile asbestos was confirmed by dispersion staining optical microscopy. This sample contains less than 10% Chrysotile asbestos. Sample #4 Loose Fibrous Material This sample is a paper material that is layered. One of the layers of this material contains greater than 80% Chrysotile asbescos as seen by x-ray diffraction. Not all the layers of this sample contain asbestos. Per our telephone discussion, the reason I am hesitant to report percentages of asbestos present, is because most asbestos is not applied as a homogenous mixture. A sample taken from one location and a sample taken from an adjacent location, often contain very different percentages of asbestos. For this reason the percentages given can only be applied towards the composition of these specific samples. If you have any questions regarding this analysis or need assistance to do the air sampling we discussed, please call me at (201) 582-7512. MH-8685-DR-ea Ref: 1155 Copy to R. L. Beach - AT&T M. J. rtor'r'"J. M. R. W. sSttoonne, M.D. J. Cassuto, M. D. - WE W. J. Schreibeis G. M. Wilkening David Rainer Field Industrial Hygienist 003603