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Mr. B. P. Wooldridge lade Division edvay Factory 1 Meat l6th Street Indianapolis, Indiana 46224 December 12, 1974 Medical Department Mr. J. X. Bertrand Mr. H. L. Phillips Mr. L. J. Suelter Mr. B. M. Beaty Or. J. J. Welsh/Dr. X. S. lane Dear Mr. Wooldridge: The eleven samples taken during Bovmnber that you forwarded for evaluation of aabeatoa have been examined using phase contrast micro scopy' with the following results: Asbestos - Fibers per silP* 5 microns 1 - On operator cutting cylinder open 2 - On operator cutting blocks of filler 3 - Lance out room 4 - Asbestos shredder room - on operator 5 - Hew shredder room - general 6 - Top of mix tanks 7 - Valve wall drilling - on operator 8 - Top clearance inspection on operator 9 - General area Dep't 511 10- General air - top of power cabinet 1lr Warehouse - asbestos storage area (Bo activity) 2 1 <1 1 1 1 1 1 <1 <1 0 It would appear from these results that sampling could be reduced to a quarterly basis. Of course, if an operation is changed or a new one initiated involving asbestos. It should be evalnated st that time. If you have any questions, let me know. Very truly yours. LJL/eg Lso J. LaFrance Industrial Hygienist A2 1 682 UCC 009389 lit ut.t t INTERNAL CORRESPONDENCE LINDE DIVISION SPttmr FACTORY 4801 WEST J6th STREET. SPEEDWAY. INDIANAPOLIS. INDIANS 16224 To (Nome) Division Lo cotton Mr. L. J. LaFrance Linde Division Medical Dept., 4th Floor New York, New York 10017 Coav to Mr. J. E. Bertrand Mr. H. L. Phillips Mr. L. G. Suelter Dot* Originating Dept. Answering letter dote Subject December 3, 1974 Chemical Processing Quality Assurance Air Samples - November Eleven air samples were taken for the month of November at various work stations throughout the Acetylene Cylinder Operations. The attached summary outlines the locations and other pertinent data. If the results are approx imately the same as August, September, and October, I recommend that sampling be reduced to a quarterly basis. Mr. Jim Bertrand requested this November set of samples be taken and evaluated before considering a reduction in sampling, if you have any questions or comments, please call. RPW:nl Attachment R. P. Wooldridge ... f UCC 009390 ***>2 r. &21683 = ro cr> Co 4* FORM DATE: 1 0 /4 /7 4 i