Document RQNJ09nza7V8ygKw5Vq3ma3B

/' 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 VCl 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 VCl TLV Oct. 1970 TLV 200 ppm Adopted proposed change OSHA Law enacted Oct. 1972 TLV 200 ppm 1 fSO T Is ts < , S' --a Dec. 29, 1970 (implemented Apr 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 Hay 6, 1974 50c ppm , 4foisJPS\ yp detectable Public comments by June 10, 1974 Hearings Recommendations to OSHA fJiosH/OiflA Cvneif BMGZtksc Metin ^ cc: H. Waltemate J. L. Nelson / A. Vittone, Jr.v June25-28, 1974 July 9, 1974 /Wl l; rT/T March 11, 1974 / /o /* T^ S~ f . 1 |ocro^ detectable ls^t\ 2-1, 10 7f lpp~ TUfi 21818001