Consensus Reports
IARC Cancer Review: Group 2B IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 52 , 1991,p. 363.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Limited Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 23 , 1980,p. 205.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Limited Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 52 , 1991,p. 363.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 52 , 1991,p. 363.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Cobalt and its compounds, as well as chromium and its compounds, are on the Community Right-To-Know List.
Standards and Recommendations
OSHA PEL: TWA 1 mg(Cr)/m3; 0.1 mg(Co)/m3 (fume and dust)
ACGIH TLV: TWA 0.5 mg(Cr)/m3; Not Classifiable as a Carcinogen
NIOSH REL: (Cobalt) Insufficient evidence for recommending limit