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> Mr. C. Frankenberger Linde Division Speedway Factory 4801 West 16th Street Indianapolis, Indiana 46224 Mr. P. J. Burtts Mr. S. E. Hlne Mr. H. L. Phillips Mr. L. J. Suelter/Mr. R. P. Wooldridge Mr. R. M. Neary/Mr. B. Higdon Dr. J. J. Welsh/Dr. K. S. Lane August 22, 1975 Medical Department 4 Dear Mr. Frankenbergeri A special industrial hygiene survey was made on August 13, 1975 to follow up on the asbestos in air problems associated with the acetylene cylinder manufacturing operations. The series of samples obtained during the second quarter indicated an Increase in the number of alrborne fibers at certain locations. It has been determined that part of the reason for this was the switch to loosely bagged material because of supply difficulties in obtaining the usual compacted asbestos. Of all the recently collected samples and those obtained on this visit the only ones above the limit are those collected at the shredder location. The results were as followst Location Asbestos Fibers per ml> 5 microns Remarks Machine shop-cutting cylinder open 1 8/6 personnel sampler UCC' 009180- A2 1 673 Mr. C. Frankenberger 2 August 22. 1975 Asbestos Fibers Location_____________________________ per ml>5 microns Remarks Maintainenee 8hop-cutting filler samples 2 8/6 personnel sampler Lance out room - general <1 7/25 normal operations Shredder room-personnel sampler 9 7/25 Blower operating* Shredder room-general area 10 8/1 visible dust Top of asbestos mix tank-general <1 7/29 Blower in operation Valve well drilling-personnel sampler <1 8/8 2 skids of B's Top clearance inspection station <1 8/12 personnel sampler General area Dept. 511 1 8/13, 9 a.m. usual operationa General area Dept. 511 1 <1 8/13, 10 a.m. usual activity Top of Power Cabinet-general air Asbestos Storage areavwarehouse <1 <1 8/13, 9:40 a.m. 8/13 no activity Shredder room-general 1 8/13 towards end of clean-up Shredder room-general 6 8/13 while dumping bags Shredder room - personnel sampler 9 8/13 as above* It was noted on both sampling periods in the shredder room that the operator climbed Inside the shredder twice In order to dislodge stuck parts Of the bales of asbestos. He was wearing a respirator while performing this UCC 009381 A21 674 Mr. C. Frankenberger 3. August 22, 1975 Job. It 1b felt however that thli situation could be Improved so that it does not require a person to enter the shredder. Better control in the shredder room is necessary since the levels found either approach or are at the ceiling limit of 10 fibers per ml. Other areas in the plant were investigated as time permitted and various conditions <fiscussed with Mr, Hine and others. Certain welding and brazing operations were observed and it was suggested that personnel type samples be obtained where cadmium and silver are major constituents. These samples may be forwarded to me so that analytical results may be obtained. Similar type samples should be obtained where lead is a major constituent so that exposure evaluation may be made. Results of these samples would then become part of an exposure record for the various operations throughout the plant. If you have any questions, please let me know. Very truly yours, LJLilm Leo J. LaFrance Industrial Hygienist UCC 009382 A2 1 67 33M3aHO*123JlHOD JAMH3TMI s'-M ou ; ;,jdri ,;.,a i nn.i -idf I23W f03A JU.1l .2IJU U-A'- 111 II am ,i JaupuA YH0T3A3 VA\Y03332 ,,ta soriBTirasA v*i-Is5 .,MQa Pn,ini8,,o $j6b nsxtTBwQ Erc ,asXqmfia ttiA en*l*vvin,A ,Ml<Jua MOI2IVIQ 3QMIJ SOnfil'lBJ . L .J . 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