PRINCIPLES OF TOXICOLOGY - Biology East Borneo

16.2 BASIC PRINCIPLES 371TABLE 16.2 Occupational Exposure Limits for Selected Solvents and Related MaterialsCompoundCAS No.1999ACGIHTLV a(ppm)1999ACGIHSTEL b(ppm)1999ACGIHCarcinogenClass1999OSHA-PEL(ppm)1999OSHA-STEL(ppm)1999USEPACarcinogenClass dAcetaldehyde 75-07-0 NE 25 A3 200 NE B2Acetone 67-64-1 500 750 A4 1,000 NE DAcrolein 107-02-8 0.1 0.23 A4 0.1 NE CAniline 62-53-3 2 NE A3 5 NE B2Benzene 71-43-2 0.5 2.5 A1 1 5 ABenzidine 92-87-5 NE NE A1 NE NE ACarbon disulfide 75-15-0 10 NE NE 20 30 NDCarbon tetrachloride 56-23-5 5 10 A2 10 25 B2Chloroform 67-66-3 10 NE A3 NE 50 B2Dimethylaniline 121-69-7 5 10 A4 5 NE ND1,4-Dioxane 123-91-1 20 NE A3 100 NE B2Ethanol 64-17-5 1,000 NE A4 1,000 NE NDEthyl acetate 141-78-6 400 NE NE 400 NE NDEthyl ether 60-29-7 400 500 NE 400 NE NDEthylene glycol, aerosol 107-21-1 NE 100 A4 NE NE NDFormaldehyde 50-00-0 NE 0.3 A2 0.75 2 B1n-Hexane 110-54-3 50 NE NE 500 NE NDHexane isomers (other) ND 500 1,000 NE NE NE NDHydrazine 302-01-2 0.01 NE A3 1 NE B2Isopropanol 67-63-0 400 c 500 A4 400 NE NDIsopropyl ether 108-20-3 250 310 NE 500 NE NDMethanol 67-56-1 200 250 NE 200 NE NDMethyl bromide 74-83-9 1 NE NE NE 20 DMethyl chloride 74-87-3 50 100 A4 100 200 NDMethylene chloride 75-09-2 50 NE A3 25 125 B2Methyl ethyl ketone 78-93-3 200 300 NE 200 NE DNaphthalene 91-20-3 10 15 A4 10 NE CNitrobenzene 98-95-3 1 NE A3 1 NE DNitromethane 75-52-5 20 NE NE c 100 NE NDPhenol 108-95-2 5 NE A4 5 NE DPyridine 110-86-1 5 NE NE 5 NE NDStyrene 100-42-5 20 40 A4 100 200 NDTetrahydrofuran 109-99-9 200 250 NE 200 NE NDToluene 108-88-3 50 NE A4 200 300 DTrichloroethene 79-01-6 50 100 A5 100 200 NDVinyl chloride 75-01-4 1 NE A1 1 5 ANE Not EstablishedND No Data, or not classified with regard to carcinogen status by U.S. EPA.a ACGIH Time-Weighted Average Threshold Limit Value (TWA-TLV).b ACGIH Short Term Exposure Limit (STEL) or Ceiling Value.c Changes are pending.d U.S. EPA Carcinogen Classification system presently undergoing reveiw.