Before revision: It classifies carcinogens into two groups: Known to be a human carcinogen Reasonably anticipated being a human carcinogen American Conference of Governmental Industrial Hygienists The American Conference of Governmental Industrial Hygienists (ACGIH) is a private organization best known for its publication of threshold limit values (TLVs) for occupational exposure and monographs on workplace chemical hazards.
After revision: It classifies carcinogens into two groups: Known to be a human carcinogen Reasonably anticipated to be a human carcinogen American Conference of Governmental Industrial Hygienists The American Conference of Governmental Industrial Hygienists (ACGIH) is a private organization best known for its publication of threshold limit values (TLVs) for occupational exposure and monographs on workplace chemical hazards.