Document jypox5Kyx9jLGVd74j8LNeYwO

/' DRAFT ACTIONS ON VINYL CHLORIDE EXPOSURE LEVELS ACGIH X American Conference of Government Industrial Hygienists X [TLV is ACGIH1s copyright similar to Time Weighted Average] Recommendations VC1 included in first list 1948 TLV 500 ppm Proposed change to make TLV the ceiling value (1962) ? TLV 500c " Adopted proposed change 1963 TLV 500c " Proposed change of VC1 TLV Oct. 1970 TLV 200 ppm Adopted proposed change OSHA Law enacted Oct. 1972 TLV 200 ppm / ?so T ^ < jTf /o Dec. 29, 1970 (implemented Apr.28, Law adopted ACGIH standards May 29, 1971 500c ppm Priority list for standard review (VCM 11th group on priority list) Spring , 1972 Call for standard rulemaking on VCM Jan., 1973 Meeting of Committee on VCM June , 1973 Hearing on standard Feb. 15, 1974 Emergency temporary standard Proposed permanent standard April 5, 1974 May 6, 1974 50c ppm fottA J ftp detectable rug[ Public comments by June 10, 1974 Hearings June25-28, 1974 Drafting o^jpermanept standard NI0SH crVt ---------------- ------- '. ~ July 9, 1974 /W.| ' 14 7 5" *1 Recommendations to OSHA March 11, 1974 f * ^ ---, detectable /evp( BMGZtksc fiJIefiVi X ^ cc: H. Waltemate ./J. L. Nelson A. Vittone, Jr BFG16780 T009T8TZ