Document 2qrwMDQOkLDVnZxp6nz00y8Ya

VINYL CHLORIDE SAFETY ASSOCIATIOM NOVEMBER 10-12, 1971 MEETING SUMMARY PLAINTIFF'S EXHIBIT DOW-510 **/!3/72 -15- AOL Bone Disease Alrco and Conoco reported that an extensive x-ray program is now being undertaken with their central medical department to detect AOL in employes. Ten companies have an AOL program already. B. F. Goodrich has long been the leader in doing extensive employe analysis to detect AOL early. Europe has recently reported many cases of AOL in PVC plant employes. Originally thought to be caused bv hand reactor'cleaning, cases in lead operators and other. non-cleaners now proves that AOL is caused by repeated exposure to low concentrations or vcm (so ppmJ. c. Four companies use life lines on operators while loading and climbing on bulk trucks. Several companies expressed concern at the high injury potential of this operation. d. Fisheye Control Pantosote indicated that maintaining the oxygen level in 7 the vapor space above incoming VCM tank cars below 100 ppm would nave a graat effect on reducing fisheyes. Airco, Pantasote and Diamond Shamrock confirmed that once the oxygen level in the RVCM system was monitored and controlled to prevent polyperoxide formation, fisheyes iw^roved considerably. Hew Solution Fast Catalysts Reference was made during the catalyst handling and storage discussions, that not only do the solution catalysts reduce the severe hazard of handling solid IPP, but give better conversion and cycles as well. No indication of whiefi fast catalyst was made, however. Shortstop Testing Uniroyal is doing some testing to determine the effectivene: of isoprene in various concentrations and under different conditions as an emergency shortstop. Isoprene was reported at an earlier meeting to be the most effective shortstop for PVC reactions'! Uniroyai will make the "test results available to the Vinyl Chloride Safety Association in unpublished form at a future meeting. i 2 DEPOSITION i EXHIBIT F-/1 r /c-Zo-97 RSV 0000102 VINYL CHLONIDE SATl . ASSOCIATION NOVEMBER IQ-12. 1971 MEETING SUKHABY /13/72 -16- K. Kattla Jackat Claanlng Ona company commantad that kattla jaekats should ba elaanad annually, sinca many yaara of acala may taka aavaral chamical claanings bafora significant haat transfar can ba racovarad. VJB/rg W. J. Boyla, Jr. ry ASV 0000103