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Occupational Health Guidelines for Chemical Hazards
January 1981
DHHS (NIOSH) Publication Number 81-123
Occupational Health Guidelines for Chemical Hazards summarizes information on permissible exposure limits, chemical and physical properties, and health hazards. It provides recommendations for medical surveillance, respiratory protection, and personal protection and sanitation practices for specific chemicals that have Federal occupational safety and health regulations. These recommendations reflect good industrial hygiene and medical surveillance practices, and their implementation will assist development and maintenance of an effective occupational health program.
| Substance | CAS # | *Version |
| Acetaldehyde | 75-07-0 | 1992 (rev) |
| Acetic acid | 64-19-7 | 1992 (rev) |
| Acetic anhydride | 108-24-7 | 1992 (rev) |
| Acetone | 67-64-1 | 1988 |
| Acetonitrile | 75-05-8 | 1992 (rev) |
| 2-Acetylaminofluorene | 53-96-3 | 1988 |
| Acetylene tetrabromide | 79-27-6 | 1992 (rev) |
| Acetylsalicyclic acid | 50-78-2 | 1988 |
| Acrolein | 107-02-8 | 1992 (rev) |
| Acrylamide | 79-06-1 | 1992 (rev) |
| Acrylic acid | 79-10-7 | 1988 |
| Acrylonitrile | 107-13-1 | 1988 |
| Aldrin | 309-00-2 | 1988 |
| Allyl alcohol | 107-18-6 | 1992 (rev) |
| Allyl chloride | 107-05-1 | 1992 (rev) |
| Allyl glycidyl ether | 106-92-3 | 1988 |
| Allyl propyl disulfide | 2179-59-1 | 1988 |
| 4-Aminodiphenyl | 92-67-1 | 1988 |
| 2-Aminopyridine | 504-29-0 | 1992 (rev) |
| Amitrole | 61-82-5 | 1988 |
| Ammonia | 7664-41-7 | 1992 (rev) |
| Ammonium chloride fume | 12125-02-9 | 1988 |
| Ammonium sulfamate | 7773-06-0 | 1992 (rev) |
| n-Amyl acetate | 628-63-7 | 1992 (rev) |
| sec-Amyl acetate | 626-38-0 | 1992 (rev) |
| Aniline (and homologs) | 62-53-3 | 1992 (rev) |
| o-Anisidine or p-Anisidine | 90-04-0 | 1992 (rev) |
| Antimony | 7440-36-0 | 1988 |
| ANTU | 86-88-4 | 1992 (rev) |
| Arsenic (inorganic compounds, as As) | 7440-38-2 | 1988 |
| Arsine | 7784-42-1 | 1988 |
| Asbestos | 1332-21-4 | 1988 |
| Atrazine | 1912-24-9 | 1988 |
| Azinphos-methyl | 86-50-0 | 1992 (rev) |
| Barium chloride (as Ba) | 10361-37-2 | 1988 |
| Barium sulfate | 7727-43-7 | 1988 |
| Benomyl | 17804-35-2 | 1988 |
| Benzene | 71-43-2 | 1988 |
| Benzidine | 92-87-5 | 1992 (rev) |
| Benzoyl peroxide | 94-36-0 | 1992 (rev) |
| Benzyl chloride | 100-44-7 | 1988 |
| Beryllium & beryllium compounds (as Be) | 7440-41-7 | 1988 |
| Bismuth telluride, doped with Selenium sulfide | 1988 | |
| Bismuth telluride, undoped | 1304-82-1 | 1988 |
| Boron oxide | 1303-86-2 | 1992 (rev) |
| Boron tribromide | 10294-33-4 | 1988 |
| Boron trifluoride | 7637-07-2 | 1992 (rev) |
| Bromacil | 314-40-9 | 1988 |
| Bromine | 7726-95-6 | 1992 (rev) |
| Bromine pentafluoride | 7789-30-2 | 1988 |
| Bromoform | 75-25-2 | 1992 (rev) |
| 1,3-Butadiene | 106-99-0 | 1992 (rev) |
| n-Butane | 106-97-8 | 1988 |
| 2-Butanone | 78-93-3 | 1988 |
| 2-Butoxyethanol | 111-76-2 | 1992 (rev) |
| n-Butyl acetate | 123-86-4 | 1992 (rev) |
| sec-Butyl acetate | 105-46-4 | 1992 (rev) |
| tert-Butyl acetate | 540-88-5 | 1992 (rev) |
| Butyl acrylate | 141-32-2 | 1988 |
| n-Butyl alcohol | 71-36-3 | 1992 (rev) |
| sec-Butyl alcohol | 78-92-2 | 1992 (rev) |
| tert-Butyl alcohol | 75-65-0 | 1992 (rev) |
| n-Butylamine | 109-73-9 | 1992 (rev) |
| tert-Butyl chromate | 1189-85-1 | 1992 (rev) |
| n-Butyl glycidyl ether | 2426-08-6 | 1988 |
| n-Butyl lactate | 138-22-7 | 1988 |
| n-Butyl mercaptan | 109-79-5 | 1988 |
| o-sec-Butylphenol | 89-72-5 | 1988 |
| p-tert-Butyltoluene | 98-51-1 | 1992 (rev) |
| Cadmium dust (as Cd) | 7440-43-9 | 1988 |
| Cadmium fume (as Cd) | 1306-19-0 | 1988 |
| Calcium carbonate | 1317-65-3 | 1988 |
| Calcium cyanamide | 156-62-7 | 1988 |
| Calcium hydroxide | 1305-62-0 | 1988 |
| Calcium oxide | 1305-78-8 | 1992 (rev) |
| Calcium silicate | 1344-95-2 | 1988 |
| Calcium sulfate | 7778-18-9 | 1988 |
| Camphor (synthetic) | 76-22-2 | 1992 (rev) |
| Caprolactam | 105-60-2 | 1988 |
| Captafol | 2425-06-1 | 1988 |
| Captan | 133-06-2 | 1988 |
| Carbaryl | 63-25-2 | 1992 (rev) |
| Carbofuran | 1563-66-2 | 1988 |
| Carbon black | 1333-86-4 | 1988 |
| Carbon dioxide | 124-38-9 | 1988 |
| Carbon disulfide | 75-15-0 | 1988 |
| Carbon monoxide | 630-08-0 | 1988 |
| Carbon tetrabromide | 558-13-4 | 1988 |
| Carbon tetrachloride | 56-23-5 | 1992 (rev) |
| Carbonyl fluoride | 353-50-4 | 1988 |
| Catechol | 120-80-9 | 1988 |
| Cellulose | 9004-34-6 | 1988 |
| Cesium hydroxide | 21351-79-1 | 1988 |
| Chlordane | 57-74-9 | 1988 |
| Chlorinated camphene | 8001-35-2 | 1988 |
| Chlorinated diphenyl oxide | 1988 | |
| Chlorine | 7782-50-5 | 1988 |
| Chlorine dioxide | 10049-04-4 | 1988 |
| Chlorine trifluoride | 7790-91-2 | 1988 |
| Chloroacetaldehyde | 107-20-0 | 1988 |
| alpha-Chloroacetophenone | 532-27-4 | 1988 |
| Chloroacetyl chloride | 79-04-9 | 1988 |
| Chlorobenzene | 108-90-7 | 1992 (rev) |
| o-Chlorobenzylidene malononitrile | 2698-41-1 | 1992 (rev) |
| Chlorobromomethane | 74-97-5 | 1988 |
| Chlorodifluoromethane | 75-45-6 | 1988 |
| Chlorodiphenyl (42% chlorine) | 53469-21-9 | 1988 |
| Chlorodiphenyl (54% chlorine) | 11097-69-1 | 1988 |
| Chloroform | 67-66-3 | 1988 |
| bis-Chloromethyl ether | 542-88-1 | 1988 |
| Chloromethyl methyl ether | 107-30-2 | 1988 |
| 1-Chloro-1-nitropropane | 600-25-9 | 1988 |
| Chloropentafluoroethane | 76-15-3 | 1988 |
| Chloropicrin | 76-06-2 | 1992 (rev) |
| beta-Chloroprene | 126-99-8 | 1992 (rev) |
| o-Chlorostyrene | 2039-87-4 | 1988 |
| o-Chlorotoluene | 95-49-8 | 1988 |
| 2-Chloro-6-trichloromethyl pyridine | 1929-82-4 | 1988 |
| Chlorpyrifos | 2921-88-2 | 1988 |
| Chromic acid and chromates | 1333-82-0 | 1988 |
| Chromium(III) compounds (as Cr) | 1988 | |
| Chromium metal | 7440-47-3 | 1988 |
| Clopidol | 2971-90-6 | 1988 |
| Coal tar pitch volatiles | 65996-93-2 | 1988 |
| Cobalt metal dust and fume (as Co) | 7440-48-4 | 1988 |
| Cobalt carbonyl (as Co) | 10210-68-1 | 1988 |
| Cobalt hydrocarbonyl (as Co) | 16842-03-8 | 1988 |
| Copper (dusts and mists, as Cu) | 7440-50-8 | 1988 |
| Copper fume (as Cu) | 1317-38-0 | 1988 |
| Cotton dust (raw) | GN22 | 1988 |
| Crag® herbicide | 136-78-7 | 1988 |
| o-Cresol | 95-48-7 | 1988 |
| m-Cresol | 108-39-4 | 1988 |
| p-Cresol | 106-44-5 | 1988 |
| Crotonaldehyde | 4170-30-3 | 1988 |
| Crufomate | 299-86-5 | 1988 |
| Cumene | 98-82-8 | 1988 |
| Cyanogen | 460-19-5 | 1988 |
| Cyanogen chloride | 506-77-4 | 1988 |
| Cyclohexane | 110-82-7 | 1988 |
| Cyclohexanol | 108-93-0 | 1988 |
| Cyclohexanone | 108-94-1 | 1988 |
| Cyclohexene | 110-83-8 | 1988 |
| Cyclohexylamine | 108-91-8 | 1988 |
| Cyclonite | 121-82-4 | 1988 |
| Cyclopentadiene | 542-92-7 | 1988 |
| Cyclopentane | 287-92-3 | 1988 |
| 2,4-D | 94-75-7 | 1988 |
| DDT | 50-29-3 | 1988 |
| Decaborane | 17702-41-9 | 1992 (rev) |
| Demeton | 8065-48-3 | 1988 |
| Diacetone alcohol | 123-42-2 | 1988 |
| Diazinon | 333-41-5 | 1988 |
| Diazomethane | 334-88-3 | 1988 |
| Diborane | 19287-45-7 | 1988 |
| 1,2-Dibromo-3-chloropropane | 96-12-8 | 1988 |
| 2-N-Dibutylaminoethanol | 102-81-8 | 1988 |
| Dibutyl phosphate | 107-66-4 | 1988 |
| Dibutyl phthalate | 84-74-2 | 1988 |
| Dichloroacetylene | 7572-29-4 | 1988 |
| o-Dichlorobenzene | 95-50-1 | 1988 |
| p-Dichlorobenzene | 106-46-7 | 1988 |
| 3,3′-Dichlorobenzidine (and its salts) | 91-94-1 | 1988 |
| Dichlorodifluoromethane | 75-71-8 | 1988 |
| 1,3-Dichloro-5,5-dimethylhydantoin | 118-52-5 | 1988 |
| 1,1-Dichloroethane | 75-34-3 | 1988 |
| 1,2-Dichloroethylene | 540-59-0 | 1988 |
| Dichloroethyl ether | 111-44-4 | 1988 |
| Dichloromonofluoromethane | 75-43-4 | 1988 |
| 1,1-Dichloro-1-nitroethane | 594-72-9 | 1988 |
| 1,3-Dichloropropene | 542-75-6 | 1988 |
| 2,2-Dichloropropionic acid | 75-99-0 | 1988 |
| Dichlorotetrafluoroethane | 76-14-2 | 1988 |
| Dichlorvos | 62-73-7 | 1988 |
| Dicrotophos | 141-66-2 | 1988 |
| Dicyclopentadiene | 77-73-6 | 1988 |
| Dicyclopentadienyl iron | 102-54-5 | 1988 |
| Dieldrin | 60-57-1 | 1988 |
| Diethanolamine | 111-42-2 | 1988 |
| Diethylamine | 109-89-7 | 1988 |
| 2-Diethylaminoethanol | 100-37-8 | 1988 |
| Diethylenetriamine | 111-40-0 | 1988 |
| Diethyl phthalate | 84-66-2 | 1988 |
| Difluorodibromomethane | 75-61-6 | 1988 |
| Diglycidyl ether | 2238-07-5 | 1988 |
| Diisobutyl ketone | 108-83-8 | 1988 |
| Diisopropylamine | 108-18-9 | 1988 |
| Dimethyl acetamide | 127-19-5 | 1988 |
| Dimethylamine | 124-40-3 | 1988 |
| 4-Dimethylaminoazobenzene | 60-11-7 | 1988 |
| N,N-Dimethylaniline | 121-69-7 | 1988 |
| Dimethyl-1,2-dibromo-2,2-dichlorethyl phosphate | 300-76-5 | 1988 |
| Dimethylformamide | 68-12-2 | 1988 |
| 1,1-Dimethylhydrazine | 57-14-7 | 1988 |
| Dimethylphthalate | 131-11-3 | 1988 |
| Dimethyl sulfate | 77-78-1 | 1988 |
| Dinitolmide | 148-01-6 | 1988 |
| o-Dinitrobenzene | 528-29-0 | 1988 |
| m-Dinitrobenzene | 99-65-0 | 1988 |
| p-Dinitrobenzene | 100-25-4 | 1988 |
| Dinitro-o-cresol | 534-52-1 | 1988 |
| Dinitrotoluene | 25321-14-6 | 1988 |
| Di-sec octyl phthalate | 117-81-7 | 1988 |
| Dioxane | 123-91-1 | 1988 |
| Diphenyl | 92-52-4 | 1988 |
| Dipropylene glycol methyl ether | 34590-94-8 | 1988 |
| Dipropyl ketone | 123-19-3 | 1988 |
| Disulfiram | 97-77-8 | 1988 |
| Diuron | 330-54-1 | 1988 |
| Endosulfan | 115-29-7 | 1988 |
| Endrin | 72-20-8 | 1988 |
| Epichlorohydrin | 106-89-8 | 1988 |
| EPN | 2104-64-5 | 1988 |
| Ethanolamine | 141-43-5 | 1988 |
| Ethion | 563-12-2 | 1988 |
| 2-Ethoxyethanol | 110-80-5 | 1988 |
| 2-Ethoxyethyl acetate | 111-15-9 | 1988 |
| Ethyl acetate | 141-78-6 | 1988 |
| Ethyl acrylate | 140-88-5 | 1988 |
| Ethylamine | 75-04-7 | 1988 |
| Ethyl benzene | 100-41-4 | 1988 |
| Ethyl bromide | 74-96-4 | 1988 |
| Ethyl butyl ketone | 106-35-4 | 1988 |
| Ethyl chloride | 75-00-3 | 1988 |
| Ethylene chlorohydrin | 107-07-3 | 1988 |
| Ethylenediamine | 107-15-3 | 1988 |
| Ethylene dibromide | 106-93-4 | 1988 |
| Ethylene dichloride | 107-06-2 | 1988 |
| Ethylene glycol | 107-21-1 | 1988 |
| Ethylene glycol dinitrate | 628-96-6 | 1988 |
| Ethyleneimine | 151-56-4 | 1988 |
| Ethylene oxide | 75-21-8 | 1988 |
| Ethyl ether | 60-29-7 | 1988 |
| Ethyl formate | 109-94-4 | 1988 |
| Ethylidene norbornene | 16219-75-3 | 1988 |
| Ethyl mercaptan | 75-08-1 | 1988 |
| N-Ethylmorpholine | 100-74-3 | 1988 |
| Ethyl silicate | 78-10-4 | 1988 |
| Ferbam | 14484-64-1 | 1988 |
| Ferrovanadium dust | 12604-58-9 | 1988 |
| Fluorine | 7782-41-4 | 1988 |
| Fluorotrichloromethane | 75-69-4 | 1988 |
| Formaldehyde | 50-00-0 | 1988 |
| Formic acid | 64-18-6 | 1988 |
| Furfural | 98-01-1 | 1988 |
| Furfuryl alcohol | 98-00-0 | 1988 |
| Glycidol | 556-52-5 | 1988 |
| Graphite (natural) | 7782-42-5 | 1988 |
| Hafnium | 7440-58-6 | 1988 |
| Heptachlor | 76-44-8 | 1988 |
| n-Heptane | 142-82-5 | 1988 |
| Hexachloroethane | 67-72-1 | 1988 |
| Hexachloronaphthalene | 1335-87-1 > | 1988 |
| n-Hexane | 110-54-3 | 1988 |
| 2-Hexanone | 591-78-6 | 1988 |
| Hexone | 108-10-1 | 1988 |
| sec-Hexyl acetate | 108-84-9 | 1988 |
| Hydrazine | 302-01-2 | 1988 |
| Hydrogen bromide | 10035-10-6 | 1988 |
| Hydrogen chloride | 7647-01-0 | 1988 |
| Hydrogen cyanide | 74-90-8 | 1988 |
| Hydrogen fluoride (as F) | 7664-39-3 | 1988 |
| Hydrogen peroxide | 7722-84-1 | 1988 |
| Hydrogen selenide | 7783-07-5 | 1988 |
| Hydrogen sulfide | 7783-06-4 | 1988 |
| Hydroquinone | 123-31-9 | 1988 |
| Iodine | 7553-56-2 | 1988 |
| Iron oxide dust and fume (as Fe) | 1309-37-1 | 1988 |
| Isoamyl acetate | 123-92-2 | 1988 |
| Isoamyl alcohol (primary) | 123-51-3 | 1988 |
| Isoamyl alcohol (secondary) | 6032-29-7 | 1988 |
| Isobutyl acetate | 110-19-0 | 1988 |
| Isobutyl alcohol | 78-83-1 | 1988 |
| Isophorone | 78-59-1 | 1988 |
| Isopropyl acetate | 108-21-4 | 1988 |
| Isopropyl alcohol | 67-63-0 | 1988 |
| Isopropylamine | 75-31-0 | 1988 |
| Isopropyl ether | 108-20-3 | 1988 |
| Isopropyl glycidyl ether | 4016-14-2 | 1988 |
| Ketene | 463-51-4 | 1988 |
| Lead | 7439-92-1 | 1988 |
| Lindane | 58-89-9 | 1988 |
| Lithium hydride | 7580-67-8 | 1988 |
| L.P.G. | 68476-85-7 | 1988 |
| Magnesium oxide fume | 1309-48-4 | 1988 |
| Malathion | 121-75-5 | 1988 |
| Maleic anhydride | 108-31-6 | 1988 |
| Manganese compounds and fume (as Mn) | 7439-96-5 | 1988 |
| Mercury compounds [except (organo) alkyl | 7439-97-6 | 1988 |
| Mercury (organo) alkyl compounds (as Hg) | 1988 | |
| Mesityl oxide | 141-79-7 | 1988 |
| Methoxychlor | 72-43-5 | 1988 |
| Methyl acetate | 79-20-9 | 1988 |
| Methyl acetylene | 74-99-7 | 1988 |
| Methyl acetylene-propadiene mixture | 59355-75-8 | 1988 |
| Methyl acrylate | 96-33-3 | 1988 |
| Methylal | 109-87-5 | 1988 |
| Methyl alcohol | 67-56-1 | 1988 |
| Methylamine | 74-89-5 | 1988 |
| Methyl bromide | 74-83-9 | 1988 |
| Methyl Cellosolve® | 109-86-4 | 1988 |
| Methyl Cellosolve® acetate | 110-49-6 | 1988 |
| Methyl chloride | 74-87-3 | 1988 |
| Methyl chloroform | 71-55-6 | 1988 |
| Methylcyclohexane | 108-87-2 | 1988 |
| Methylcyclohexanol | 25639-42-3 | 1988 |
| o-Methylcyclohexanone | 583-60-8 | 1988 |
| Methylene bisphenyl isocyanate | 101-68-8 | 1988 |
| Methylene chloride | 75-09-2 | 1988 |
| Methyl formate | 107-31-3 | 1988 |
| 5-Methyl-3-heptanone | 541-85-5 | 1988 |
| Methyl hydrazine | 60-34-4 | 1988 |
| Methyl iodide | 74-88-4 | 1988 |
| Methyl isobutyl carbinol | 108-11-2 | 1988 |
| Methyl isocyanate | 624-83-9 | 1988 |
| Methyl mercaptan | 74-93-1 | 1988 |
| Methyl methacrylate | 80-62-6 | 1988 |
| alpha-Methyl styrene | 98-83-9 | 1988 |
| Mica (containing less than 1% quartz) | 12001-26-2 | 1988 |
| Molybdenum | 7439-98-7 | 1988 |
| Molybdenum (soluble compounds, as Mo) | 1988 | |
| Monomethyl aniline | 100-61-8 | 1988 |
| Morpholine | 110-91-8 | 1988 |
| Naphtha (coal tar) | 8030-30-6 | 1988 |
| Naphthalene | 91-20-3 | 1988 |
| alpha-Naphthylamine | 134-32-7 | 1988 |
| beta-Naphthylamine | 91-59-8 | 1988 |
| Nickel carbonyl | 13463-39-3 | 1988 |
| Nickel metal and other compounds (as Ni) | 7440-02-0 | 1988 |
| Nicotine | 54-11-5 | 1988 |
| Nitric acid | 7697-37-2 | 1988 |
| Nitric oxide | 10102-43-9 | 1988 |
| p-Nitroaniline | 100-01-6 | 1988 |
| Nitrobenzene | 98-95-3 | 1988 |
| 4-Nitrobiphenyl | 92-93-3 | 1988 |
| p-Nitrochlorobenzene | 100-00-5 | 1988 |
| Nitroethane | 79-24-3 | 1988 |
| Nitrogen dioxide | 10102-44-0 | 1988 |
| Nitrogen trifluoride | 7783-54-2 | 1988 |
| Nitroglycerine | 55-63-0 | 1988 |
| Nitromethane | 75-52-5 | 1988 |
| 1-Nitropropane | 108-03-2 | 1988 |
| 2-Nitropropane | 79-46-9 | 1988 |
| N-Nitrosodimethylamine | 62-75-9 | 1988 |
| o-Nitrotoluene | 88-72-2 | 1988 |
| m-Nitrotoluene | 99-08-1 | 1988 |
| p-Nitrotoluene | 99-99-0 | 1988 |
| Octachloronaphthalene | 2234-13-1 | 1988 |
| Octane | 111-65-9 | 1988 |
| Oil mist (mineral) | 8012-95-1 | 1988 |
| Osmium tetroxide | 20816-12-0 | 1988 |
| Oxalic acid | 144-62-7 | 1988 |
| Oxygen difluoride | 7783-41-7 | 1988 |
| Ozone | 10028-15-6 | 1988 |
| Paraquat (Paraquat dichloride) | 1910-42-5 | 1988 |
| Parathion | 56-38-2 | 1988 |
| Pentaborane | 19624-22-7 | 1988 |
| Pentachloronaphthalene | 1321-64-8 | 1988 |
| Pentachlorophenol | 87-86-5 | 1988 |
| n-Pentane | 109-66-0 | 1988 |
| 2-Pentanone | 107-87-9 | 1988 |
| Perchloromethyl mercaptan | 594-42-3 | 1988 |
| Perchloryl fluoride | 7616-94-6 | 1988 |
| Petroleum distillates (naphtha) | 8002-05-9 | 1988 |
| Phenol | 108-95-2 | 1988 |
| p-Phenylene diamine | 106-50-3 | 1988 |
| Phenyl ether (vapor) | 101-84-8 | 1988 |
| Phenyl ether-biphenyl mixture (vapor) | 8004-13-5 | 1988 |
| Phenyl glycidyl ether | 122-60-1 | 1988 |
| Phenylhydrazine | 100-63-0 | 1988 |
| Phosdrin | 7786-34-7 | 1988 |
| Phosgene | 75-44-5 | 1988 |
| Phosphine | 7803-51-2 | 1988 |
| Phosphoric acid | 7664-38-2 | 1988 |
| Phosphorus (yellow) | 7723-14-0 | 1988 |
| Phosphorus pentachloride | 10026-13-8 | 1988 |
| Phosphorus pentasulfide | 1314-80-3 | 1988 |
| Phosphorus trichloride | 7719-12-2 | 1988 |
| Phthalic anhydride | 85-44-9 | 1988 |
| Picric acid | 88-89-1 | 1988 |
| Platinum (soluble salts, as Pt) | 1988 | |
| Portland cement | 65997-15-1 | 1992 (rev) |
| Propane | 74-98-6 | 1988 |
| beta-Propiolactone | 57-57-8 | 1988 |
| n-Propyl acetate | 109-60-4 | 1988 |
| n-Propyl alcohol | 71-23-8 | 1988 |
| Propylene dichloride | 78-87-5 | 1988 |
| Propylene imine | 75-55-8 | 1988 |
| Propylene oxide | 75-56-9 | 1988 |
| n-Propyl nitrate | 627-13-4 | 1988 |
| Pyrethrum | 8003-34-7 | 1988 |
| Pyridine | 110-86-1 | 1988 |
| Quinone | 106-51-4 | 1988 |
| Rhodium (metal fume and insoluble compou | 7440-16-6 | 1988 |
| Rhodium (soluble compounds, as Rh) | 1988 | |
| Ronnel | 299-84-3 | 1988 |
| Rotenone | 83-79-4 | 1988 |
| Selenium | 7782-49-2 | 1988 |
| Selenium hexafluoride | 7783-79-1 | 1988 |
| Silica, amorphous | 7631-86-9 | 1988 |
| Silica, crystalline (as respirable dust) | 14808-60-7 | 1988 |
| Silver (metal dust and soluble compounds | 7440-22-4 | 1988 |
| Soapstone (containing less than 1% quart | VV87 | 1988 |
| Sodium fluoroacetate | 62-74-8 | 1988 |
| Sodium hydroxide | 1310-73-2 | 1988 |
| Stibine | 7803-52-3 | 1988 |
| Stoddard solvent | 8052-41-3 | 1988 |
| Strychnine | 57-24-9 | 1988 |
| Styrene | 100-42-5 | 1988 |
| Sulfur dioxide | 7446-09-5 | 1988 |
| Sulfuric acid | 7664-93-9 | 1988 |
| Sulfur monochloride | 10025-67-9 | 1988 |
| Sulfur pentafluoride | 5714-22-7 | 1988 |
| Sulfuryl fluoride | 2699-79-8 | 1988 |
| 2,4,5-T | 93-76-5 | 1988 |
| Talc (containing no asbestos and less th | 14807-96-6 | 1988 |
| Tantalum (metal and oxide dust, as Ta) | 7440-25-7 | 1988 |
| TEDP | 3689-24-5 | 1988 |
| Tellurium | 13494-80-9 | 1988 |
| Tellurium hexafluoride | 7783-80-4 | 1988 |
| TEPP | 107-49-3 | 1988 |
| o-Terphenyl | 84-15-1 | 1988 |
| m-Terphenyl | 92-06-8 | 1988 |
| p-Terphenyl | 92-94-4 | 1988 |
| 1,1,1,2-Tetrachloro-2,2-difluoroeth | 76-11-9 | 1988 |
| 1,1,2,2-Tetrachloro-1,2-difluoroethane | 76-12-0 | 1988 |
| 1,1,2,2-Tetrachloroethane | 79-34-5 | 1988 |
| Tetrachloroethylene | 127-18-4 | 1988 |
| Tetrachloronaphthalene | 1335-88-2 | 1988 |
| Tetraethyl lead (as Pb) | 78-00-2 | 1988 |
| Tetrahydrofuran | 109-99-9 | 1988 |
| Tetramethyl lead (as Pb) | 75-74-1 | 1988 |
| Tetramethyl succinonitrile | 3333-52-6 | 1988 |
| Tetranitromethane | 509-14-8 | 1988 |
| Tetryl | 479-45-8 | 1988 |
| Thallium (soluble compounds, as Tl) | 1988 | |
| Thiram | 137-26-8 | 1988 |
| Tin | 7440-31-5 | 1988 |
| Tin (organic compounds, as Sn) | 1988 | |
| Titanium dioxide | 13463-67-7 | 1988 |
| Toluene | 108-88-3 | 1988 |
| Toluene-2,4-diisocyanate | 584-84-9 | 1988 |
| o-Toluidine | 95-53-4 | 1988 |
| Tributyl phosphate | 126-73-8 | 1988 |
| 1,1,2-Trichloroethane | 79-00-5 | 1988 |
| Trichloroethylene | 79-01-6 | 1988 |
| Trichloronaphthalene | 1321-65-9 | 1988 |
| 1,2,3-Trichloropropane | 96-18-4 | 1988 |
| 1,1,2-Trichloro-1,2,2-trifluoroethane | 76-13-1 | 1988 |
| Trifluorobromomethane | 75-63-8 | 1988 |
| 2,4,6-Trinitrotoluene | 118-96-7 | 1988 |
| Triorthocresyl phosphate | 78-30-8 | 1988 |
| Triphenyl phosphate | 115-86-6 | 1988 |
| Turpentine | 8006-64-2 | 1988 |
| Uranium (insoluble compounds, as U) | 7440-61-1 | 1988 |
| Uranium (soluble compounds, as U) | 1988 | |
| Vanadium dust | 1314-62-1 | 1988 |
| Vanadium fume | 1314-62-1 | 1988 |
| Vinyl chloride | 75-01-4 | 1988 |
| Vinyl toluene | 25013-15-4 | 1988 |
| Warfarin | 81-81-2 | 1988 |
| o-Xylene | 95-47-6 | 1988 |
| Xylidine | 1300-73-8 | 1988 |
| Yttrium | 7440-65-5 | 1988 |
| Zinc chloride fume | 7646-85-7 | 1988 |
| Zinc oxide | 1314-13-2 | 1988 |
| Zirconium compounds (as Zr) | 7440-67-7 | 1988 |
*To obtain a copy of a previous version of this communication product please contact CDC Info 1-800-CDC-INFO (1-800-232-4636)|TTY: 1-888-232-6348 l cdc.gov/info.