TLVs threshold limit values for chemical substances in workroom air adopted by the American Conference of Government Industrial Hygienists for 1973.
D000397:Air Pollution; D002273:Carcinogens / Q000633:toxicity*; D004391:Dust; D004781:Environmental Exposure; D005740:Gases / Q000633:toxicity*; D006801:Humans; D008903:Minerals / Q000633:toxicity*; D009787:Occupational Medicine; D011042:Poisons / Q000633:toxicity*; D014481:United States
D002273:Carcinogens; D004391:Dust; D005740:Gases; D008903:Minerals; D011042:Poisons