Regulations (Preambles to Final Rules) - Table of Contents Regulations (Preambles to Final Rules) - Table of Contents
• Record Type: Air Contaminants
• Section: 2
• Title: Section 2 - II. Index to Preamble Discussion of Individual Substances

II. Index to Preamble Discussion of Individual Substances

The table below provides an index by preamble section and subsection to a discussion of the record and the health effects evidence for each of the 428 substances for which new or revised limits were considered. The substances in the index are arranged in alphabetical order and include H.S. and CAS numbers as well as the principal toxicological or other basis for the selection or revision of each limit. For some of these substances, OSHA determined that no change to the existing PEL was warranted. Section X presents the entire standard and includes Table Z-1-A, which shows the new and revised limits as well as those OSHA limits that were not changed by this rulemaking.
__________________________________________________________________________
H.S.                            CAS         Primary Basis        Preamble
NO.   Substance Name            Number      for Limits           Section
___________________________________________________________________________

1001 ACETALDEHYDE               75-07-0    SENSORY IRRITATION     VI.C.3
1002 ACETIC ACID                64-19-7    SENSORY IRRITATION     VI.C.3
1003 ACETIC ANHYDRIDE           108-24-7   ANALOGY                VI.C.12
1004 ACETONE                    67-64-1    SENSORY IRRITATION     VI.C.3
1005 ACETONITRILE               75-05-8    SYSTEMIC TOXICITY      VI.C.8
1006 ACETYLSALICYLIC ACID
     (ASPIRIN)                  50-78-2    SYSTEMIC TOXICITY      VI.C.8
1007 ACROLEIN                   107-02-8   SENSORY IRRITATION     VI.C.3
1008 ACRYLAMIDE                 79-06-1    CANCER                 VI.C.15
1009 ACRYLIC ACID               79-10-7    ANALOGY                VI.C.12
1010 ALLYL ALCOHOL              107-18-6   SENSORY IRRITATION     VI.C.3
1011 ALLYL CHLORIDE             107-05-1   LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1012 ALLYL GLYCIDYL ETHER (AGE) 106-92-3   SENSORY IRRITATION     VI.C.3
1013 ALLYL PROPYL DISULFIDE     2179-59-1  SENSORY IRRITATION     VI.C.3
1014 ALPHA-ALUMINA              1344-28-1  PHYSICAL IRRITATION    VI.C.10
1015 ALUMINUM (ALKYLS)          7429-90-5  ANALOGY                VI.C.12
1016 ALUMINUM (METAL)           7429-90-5  PHYSICAL IRRITATION    VI.C.10
1017 ALUMINUM (PYRO POWDERS)    7429-90-5  RESPIRATORY EFFECTS    VI.C.6
1018 ALUMINUM (SOLUBLE SALTS)   7429-90-5  ANALOGY                VI.C.12
1019 ALUMINUM (WELDING FUMES)   7429-90-5  SYSTEMIC TOXICITY      VI.C.8
1020 AMITROLE (3-AMINO-1, 2,
     4-TRIAZOLE)                61-82-5    CANCER                 VI.C.15
1021 AMMONIA                    7644-41-7  SENSORY IRRITATION     VI.C.3
1022 AMMONIUM CHLORIDE
     (FUME)                     12125-02-9 SENSORY IRRITATION     VI.C.3
1024 AMMONIUM SULFAMATE
     (AMMATE)                   7773-06-0  PHYSICAL IRRITATION    VI.C.10
1025 ANILINE                    62-53-3    BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1028 ASPHALT FUMES              8052-42-4  CANCER                 VI.C.15
1029 ATRAZINE                   1912-24-9  NOAELs                 VI.C.9
1031 BARIUM SULFATE             7727-43-7  PHYSICAL IRRITATION    VI.C.10
1032 BENOMYL                    17804-35-2 PHYSICAL IRRITATION    VI.C.10
1033 BERYLLIUM & COMPOUNDS  7740-41-7  CANCER                 VI.C.15
1034 BISMUTH TELLURIDE
     (SE-DOPED)                 1304-82-1  RESPIRATORY EFFECTS    VI.C.6
1035 BISMUTH TELLURIDE
     (UNDOPED)                  1304-82-1  PHYSICAL IRRITATION    VI.C.10
1036 BORATES, TETRA, SODIUM
     (ANHYDROUS)                1330-43-4  SENSORY IRRITATION     VI.C.3
1037 BORATES, TETRA, SODIUM
     (DECAHYDRATE)              1303-96-4  SENSORY IRRITATION     VI.C.3
1038 BORATES, TETRA, SODIUM
     (PENTAHYDRATE)             12179-04-3 SENSORY IRRITATION     VI.C.3
1039 BORON OXIDE                1303-86-2  PHYSICAL IRRITATION    VI.C.10
1040 BORON TRIBROMIDE           10294-33-4 ANALOGY                VI.C.12
1041 BROMACIL                   314-40-9   NOAELs                 VI.C.9
1042 BROMINE                    7726-95-6  SENSORY IRRITATION     VI.C.3
1043 BROMINE PENTAFLUORIDE      7789-30-2  ANALOGY                VI.C.12
1044 BUTANE                     106-97-8   NARCOSIS               VI.C.2
1045 2-BUTANONE (MEK)           78-93-3    SENSORY IRRITATION     VI.C.3
1046 2-BUTOXY ETHANOL           111-76-2   SYSTEMIC TOXICITY      VI.C.8
1047 N-BUTYL ACETATE            123-86-4   SENSORY IRRITATION     VI.C.3
1048 BUTYL ACRYLATE             141-32-2   ANALOGY                VI.C.12
1049 SEC-BUTYL-ALCOHOL          78-92-2    NARCOSIS               VI.C.2
1050 TERT-BUTYL ALCOHOL         75-65-0    NARCOSIS               VI.C.2
1051 N-BUTYL ALCOHOL            71-36-3    NEUROPATHY             VI.C.1
1052 N-BUTYL GLYCIDYL ETHER
     (BGE)                      2426-08-6  SYSTEMIC TOXICITY      VI.C.8
1053 N-BUTYL LACTATE            138-22-7   SENSORY IRRITATION     VI.C.3
1054 BUTYL MERCAPTAN            109-79-5   SENSORY IRRITATION     VI.C.3
1055 O-SEC-BUTYL PHENOL         89-72-5    ANALOGY                VI.C.12
1056 P-TERT-BUTYLTOLUENE        98-51-1    NOAELs                 VI.C.9
1057 CALCIUM CARBONATE          1317-65-3  PHYSICAL IRRITATION    VI.C.10
1058 CALCIUM CYANAMIDE          156-62-7   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1059 CALCIUM HYDROXIDE          1305-62-0  ANALOGY                VI.C.12
1060 CALCIUM OXIDE              1305-78-8  ANALOGY                VI.C.12
1061 CALCIUM SILICATE, TOTAL
     DUST                       1344-95-2  PHYSICAL IRRITATION    VI.C.10
1062 CALCIUM SULFATE            7778-18-9  PHYSICAL IRRITATION    VI.C.10
1063 CAMPHOR (SYNTHETIC)        76-22-2    INCREASING PEL         VI.C.16
1064 CAPROLACTAM (DUST)         105-60-2   SENSORY IRRITATION     VI.C.3
1065 CAPROLACTAM (VAPOR)        105-60-2   SENSORY IRRITATION     VI.C.3
1066 CAPTAFOL (DIFOLATAN)       2425-06-1  SENSITIZATION EFFECTS  VI.C.14
1067 CAPTAN                     133-06-2   SYSTEMIC TOXICITY      VI.C.8
1068 CARBOFURAN (FURADAN)       1563-66-2  BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1069 CARBON DIOXIDE             124-38-9   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1070 CARBON DISULFIDE           75-15-0    CARDIOVASCULAR EFFECTS VI.C.7
1071 CARBON MONOXIDE            630-08-0   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1072 CARBON TETRABROMIDE        558-13-4   LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1073 CARBON TETRACHLORIDE       56-23-5    CANCER                 VI.C.15
1074 CARBONYL FLUORIDE          353-50-4   ANALOGY                VI.C.12
1075 CATECHOL (PYROCATECHOL)    120-80-9   ANALOGY                VI.C.12
1076 CELLULOSE                  9004-34-6  PHYSICAL IRRITATION    VI.C.10
1077 CESIUM HYDROXIDE           21351-79-1 SENSORY IRRITATION     VI.C.3
1078 CHLORINATED CAMPHENE       8001-35-2  NEUROPATHY             VI.C.1
1079 CHLORINE                   7782-50-5  SENSORY IRRITATION     VI.C.3
1080 CHLORINE DIOXIDE           10049-04-4 RESPIRATORY EFFECTS    VI.C.6
1081 1-CHLORO-1-NITROPROPANE    600-25-9   ANALOGY                VI.C.12
1082 2-CHLORO-6-TRICHLOROMETHYL
     PYRIDINE (NITRAPYRIN)      1929-82-4  PHYSICAL IRRITATION    VI.C.10
1083 CHLOROACETYL CHLORIDE      79-04-9    SENSORY IRRITATION     VI.C.3
1084 O-CHLOROBENZYLIDENE
     MALONONITRILE              2698-41-1  SENSORY IRRITATION     VI.C.3
1085 CHLORODIFLUOROMETHANE      75-45-6    CARDIOVASCULAR EFFECTS VI.C.7
1086 CHLOROFORM                 67-66-3    CANCER                 VI.C.15
1087 CHLOROPENTAFLUOROETHANE    76-15-3    CARDIOVASCULAR EFFECTS VI.C.7
1088 CHLOROPRENE                126-99-8   SYSTEMIC TOXICITY      VI.C.8
1089 O-CHLOROSTYRENE            2039-87-4  LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1090 O-CHLOROTOLUENE            95-49-8    NOAELs                 VI.C.9
1091 CHLORPYRIFOS               2921-88-2  BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1092 CHROMIC ACID & 
     CHROMATES                  Varies     CANCER                 VI.C.15
1093 CHROMIUM, METAL            7440-47-3  RESPIRATORY EFFECTS    VI.C.6
1094 CHROMYL CHLORIDE           14977-61-8 CANCER                 VI.C.15
1095 CLOPIDOL (COYDEN)          2971-90-6  PHYSICAL IRRITATION    VI.C.10
1096 COAL DUST, GREATER THAN
     5 PERCENT QUARTZ           None       RESPIRATORY EFFECTS    VI.C.6
1097 COAL DUST, LESS THAN
     5 PERCENT QUARTZ           None       RESPIRATORY EFFECTS    VI.C.6
1098 COBALT CARBONYL            10210-68-1 ANALOGY                VI.C.12
1099 COBALT HYDROCARBONYL       16842-03-8 ANALOGY                VI.C.12
1100 COBALT METAL, FUME, DUST   7740-48-4  SENSITIZATION EFFECTS  VI.C.14
1101 COPPER (FUME)              7740-50-8  INCREASING PEL         VI.C.16
1102 CRAG HERBICIDE (SESONE)    136-78-7   PHYSICAL IRRITATION    VI.C.10
1103 CRUFOMATE                  299-86-5   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1104 CYANAMIDE                  420-04-2   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1105 CYANOGEN                   460-19-5   SENSORY IRRITATION     VI.C.3
1106 CYANOGEN CHLORIDE          506-77-4   SENSORY IRRITATION     VI.C.3
1107 CYCLOHEXANOL               108-93-0   CHANGE IN SKIN
                                           DESIGNATION ONLY       VI.C.18
1108 CYCLOHEXANONE              108-94-1   LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1109 CYCLOHEXYLAMINE            108-91-8   SYSTEMIC TOXICITY      VI.C.8
1110 CYCLONITE                  121-82-4   NOAELs                 VI.C.9
1111 CYCLOPENTANE               287-92-3   NARCOSIS               VI.C.2
1112 CYHEXATIN                  13121-70-5 SYSTEMIC TOXICITY      VI.C.8
1113 DDT                        50-29-3    SYSTEMIC TOXICITY      VI.C.8
1114 DECABORANE                 17702-41-9 NEUROPATHY             VI.C.1
1116 DI-SEC-OCTYL-PHTHALATE     117-81-7   NEUROPATHY             VI.C.1
1117 2,6-DI-TERT-BUTYL-P-
     CRESOL                     128-37-0   NOAELs                 VI.C.9
1118 DIAZINON                   333-41-5   ANALOGY                VI.C.12
1119 DIBUTYL PHOSPHATE          107-66-4   SENSORY IRRITATION     VI.C.3
1120 2-N-DIBUTYLAMINOETHANOL    102-81-8   SYSTEMIC TOXICITY      VI.C.8
1121 1,1-DICHLORO-1-
     NITROETHANE                594-72-9   ANALOGY                VI.C.12
1122 1,3-DICHLORO-5,
     5-DIMETHYLHYDANTOIN        118-52-5   SENSORY IRRITATION     VI.C.3
1123 DICHLOROACETYLENE          7572-29-4  NEUROPATHY             VI.C.1
1125 P-DICHLOROBENZENE          106-46-7   ANALOGY                VI.C.12
1126 1,1-DICHLOROETHANE         75-34-3    INCREASING PEL         VI.C.16
1127 DICHLOROETHYL ETHER        111-44-4   SENSORY IRRITATION     VI.C.3
1128 DICHLOROMONOFLUOROMETHANE  75-43-4    ANALOGY                VI.C.12
1129 1,3-DICHLOROPROPENE        542-75-6   LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1130 2,2-DICHLOROPROPIONIC
     ACID                       75-99-0    SENSORY IRRITATION     VI.C.3
1131 DICROTOPHOS (BIDRIN)       141-66-2   BIOCHEMICAL/METABOLIC
                                             EFFECTS              VI.C.13
1132 DICYCLOPENTADIENE          77-73-6    LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1133 DICYCLOPENTADIENYL IRON    102-54-5   PHYSICAL IRRITATION    VI.C.10
1134 DIETHANOLAMINE             111-2-2    NOAELs                 VI.C.9
1135 DIETHYL KETONE             96-22-0    ANALOGY                VI.C.12
1136 DIETHYLPHTHALATE           84-66-2    NOAELs                 VI.C.9
1137 DIETHYLAMINE               109-89-7   SENSORY IRRITATION     VI.C.3
1138 DIETHYLENE TRIAMINE        111-40-0   ANALOGY                VI.C.12
1139 DIGLYCIDYL ETHER (DGE)     2238-07-5  SYSTEMIC TOXICITY      VI.C.8
1140 DIISOBUTYL KETONE          108-83-8   SENSORY IRRITATION     VI.C.3
1141 DIMETHYL 1,2-DIBROMO-2,
     2-DICHLOROETHYL
     PHOSPHATE                  300-76-5   CHANGE IN SKIN
                                           DESIGNATION ONLY       VI.C.18
1142 DIMETHYL SULFATE           77-78-1    CANCER                 VI.C.15
1143 DIMETHYLANILINE            121-69-7   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1144 DINITOLMIDE (3,5-DINITRO-
     0-TOLUAMIDE)               148-01-6   NOAELs                 VI.C.9
1145 DIOXANE (DIETHYLENE
     DIOXIDE)                   123-91-1   LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1146 DIOXATHION (DELNAV)        78-34-2    BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1147 DIPHENYLAMINE              122-39-4   NOAELs                 VI.C.9
1148 DIPROPYL KETONE            123-19-3   ANALOGY                VI.C.12
1149 DIPROPYLENE GLYCOL
     METHYL ETHER               34590-94-8 NEUROPATHY             VI.C.1
1150 DIQUAT                     85-00-7    ANALOGY                VI.C.12
1151 DISULFIRAM                 97-77-8    BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1152 DISULFOTON                 298-04-4   ANALOGY                VI.C.12
1153 DIURON                     330-54-1   NOAELs                 VI.C.9
1154 DIVINYL BENZENE            108-57-6   ANALOGY                VI.C.12
1155 EMERY                      112-62-9   PHYSICAL IRRITATION    VI.C.10
1156 ENDOSULFAN                 115-29-7   ANALOGY                VI.C.12
1158 EIPCHLOROHYDRIN            106-89-8   SENSORY IRRITATION     VI.C.3
1159 ETHANOLAMINE               141-43-5   SYSTEMIC TOXICITY      VI.C.8
1160 ETHION (NIALATE)           563-12-2   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1161 ETHYL ACRYLATE             140-88-5   RESPIRATORY EFFECTS    VI.C.6
1162 ETHYL BENZENE              100-41-4   SENSORY IRRITATION     VI.C.3
1163 ETHYL BROMIDE              74-96-4    NARCOSIS               VI.C.2
1164 ETHYL ETHER                60-29-7    SENSORY IRRITATION     VI.C.3
1165 ETHYL MERCAPTAN            75-08-1    SENSORY IRRITATION     VI.C.3
1166 ETHYL SILICATE             78-10-4    LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1167 ETHYLENE CHLOROHYDRIN      107-07-3   SYSTEMIC TOXICITY      VI.C.8
1168 ETHYLENE DICHLORIDE
     (1,2-DICHLOROETHANE)       107-06-2   LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1169 ETHYLENE GLYCOL            107-21-1   SENSORY IRRITATION     VI.C.3
1170 ETHYLENE GLYCOL
     DINITRATE                  628-96-6   CARDIOVASCULAR EFFECTS VI.C.7
1171 ETHYLIDENE NORBORNENE      16219-75-3 SENSORY IRRITATION     VI.C.3
1172 N-ETHYLMORPHOLINE          100-74-3   OCULAR EFFECTS         VI.C.5
1173 FENAMIPHOS                 22224-92-6 BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1174 FENSULFOTHION (DESIGNATE)  115-90-2   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1175 FENTHION                   55-38-9    BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1176 FERBAM                     14484-64-1 PHYSICAL IRRITATION    VI.C.10
1177 FERROVANADIUM DUST         12604-58-9 RESPIRATORY EFFECTS    VI.C.6
1178 FIBROUS GLASS DUST         None       RESPIRATORY EFFECTS    VI.C.6
1179 FLUORINE                   7782-41-4  INCREASING PEL         VI.C.16
1180 FLUOROTRICHLOROMETHANE     75-69-4    CARDIOVASCULAR EFFECTS VI.C.7
1181 FONOFOS                    944-22-9   ANALOGY                VI.C.12
1182 FORMAMIDE                  75-12-7    ANALOGY                VI.C.12
1183 FURFURAL                   98-01-1    SENSORY IRRITATION     VI.C.3
1184 FURFURYL ALCOHOL           98-00-0    SENSORY IRRITATION     VI.C.3
1185 GASOLINE                   8006-61-9  NARCOSIS               VI.C.2
1186 GERMANIUM TETRAHYDRIDE     7782-65-2  ANALOGY                VI.C.12
1187 GLUTARALDEHYDE             111-30-8   SENSORY IRRITATION     VI.C.3
1188 GLYCERIN (MIST)            56-81-5    PHYSICAL IRRITATION    VI.C.10
1189 GLYCIDOL (2,3-EPOXY-1-
     PROPANOL)                  556-52-5   SYSTEMIC TOXICITY      VI.C.8
1190 GRAIN DUST                 None       RESPIRATORY EFFECTS    VI.C.6
1191 GRAPHITE, NATURAL,
     RESPIRABLE                 7782-42-5  RESPIRATORY EFFECTS    VI.C.6
1191A GRAPHITE, SYNTHETIC       None       PHYSICAL IRRITATION    VI.C.10
1192 GYPSUM, TOTAL DUST         7778-18-9  PHYSICAL IRRITATION    VI.C.10
1194 N-HEPTANE                  142-82-5   NARCOSIS               VI.C.2
1195 HEXACHLOROBUTADIENE        87-68-3    LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1196 HEXACHLOROCYCLOPENTADIENE  77-47-4    SENSORY IRRITATION     VI.C.3
1197 HEXACHLOROETHANE           67-72-1    INCREASING PEL         VI.C.16
1198 HEXAFLUOROACETONE          684-16-2   SYSTEMIC TOXICITY      VI.C.8
1200 N-HEXANE                   110-54-3   NEUROPATHY             VI.C.1
1201 HEXANE ISOMERS             Varies     NARCOSIS               VI.C.2
1202 2-HEXANONE                 591-78-6   NEUROPATHY             VI.C.1
1203 HEXONE (METHYL ISOBUTYL
     KETONE)                    108-10-1   LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1204 HEXYLENE GLYCOL            107-41-5   SENSORY IRRITATION     VI.C.3
1205 HYDRAZINE                  302-01-2   LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1206 HYDROGEN BROMIDE           10035-10-6 SENSORY IRRITATION     VI.C.3
1207 HYDROGEN CYANIDE           74-90-8    SYSTEMIC TOXICITY      VI.C.8
1208 HYDROGEN FLUORIDE          7664-39-3  SENSORY IRRITATION     VI.C.3
1209 HYDROGEN SULFIDE           7783-06-4  OCULAR EFFECTS         VI.C.5
1210 HYDROGENATED TERPHENYLS    61788-32-7 SYSTEMIC TOXICITY      VI.C.8
1211 2-HYDROXYPROPYL ACRYLATE   999-61-1   SENSORY IRRITATION     VI.C.3
1212 INDENE                     95-13-6    ANALOGY                VI.C.12
1213 INDIUM & COMPOUNDS     7440-74-6  RESPIRATORY 
                                           EFFECTS                VI.C.6
1214 IODOFORM                   75-47-8    ANALOGY                VI.C.12
1215 IRON OXIDE 
     (DUST & FUME)          1309-37-1  RESPIRATORY EFFECTS    VI.C.6
1216 IRON PENTACARBONYL         13463-40-6 NEUROPATHY             VI.C.1
1217 IRON SALTS                 Varies     SENSORY IRRITATION     VI.C.3
1218 ISOAMYL ALCOHOL            123-51-3   NARCOSIS               VI.C.2
1219 ISOBUTYL ALCOHOL           78-83-1    ANALOGY                VI.C.12
1220 ISOOCTYL ALCOHOL           26952-21-6 ANALOGY                VI.C.12
1221 ISOPHORONE                 78-59-1    NARCOSIS               VI.C.2
1222 ISOPHORONE DIISOCYANATE    4098-71-9  SENSITIZATION EFFECTS  VI.C.14
1223 2-ISOPROPOXYETHANOL        109-59-1   SYSTEMIC TOXICITY      VI.C.8
1224 ISOPROPYL ACETATE          108-21-4   SENSORY IRRITATION     VI.C.3
1225 ISOPROPYL ALCOHOL          67-63-0    SENSORY IRRITATION     VI.C.3
1226 ISOPROPYL ETHER            108-20-3   ODOR EFFECTS           VI.C.11
1227 ISOPROPYL GLYCIDYL ETHER   4016-14-2  SYSTEMIC TOXICITY      VI.C.8
1228 ISOPROPYLAMINE             75-31-0    SENSORY IRRITATION     VI.C.3
1229 N-ISOPROPYLANILINE         768-52-5   ANALOGY                VI.C.12
1230 KOALIN, TOTAL DUST         None       PHYSICAL IRRITATION    VI.C.10
1231 KETENE                     463-51-4   ANALOGY                VI.C.12
1232 LIMESTONE, TOTAL DUST      1317-67-3  PHYSICAL IRRITATION    VI.C.10
1233 MAGNESITE, TOTAL DUST      546-93-0   PHYSICAL IRRITATION    VI.C.10
1234 MAGNESIUM OXIDE FUME       1309-48-4  PHYSICAL IRRITATION    VI.C.10
1235 MALATHION                  121-75-5   PHYSICAL IRRITATION    VI.C.10
1236A MANGANESE, FUME           7439-96-5  NEUROPATHY             VI.C.1
1237 MANGANESE CYCLOPENTADIENYL
     TRICARBONYL                12079-65-1 NEUROPATHY             VI.C.1
1238 MANGANESE TETROXIDE        1317-35-7  NEUROPATHY             VI.C.1
1239 MARBLE, TOTAL DUST         1317-65-3  PHYSICAL IRRITATION    VI.C.10
1240 MERCURY (ARYL AND
     INORGANIC COMPOUNDS)       7439-97-6  NEUROPATHY             VI.C.1
1241 MERCURY (VAPOR)            7439-97-6  NEUROPATHY             VI.C.1
1242 MERCURY, (ORGANO) ALKYL
     COMPOUNDS                  7439-97-6  NEUROPATHY             VI.C.1
1243 MESITYL OXIDE              141-79-7   SENSORY IRRITATION     VI.C.3
1244 METHACRYLIC ACID           79-41-4    ANALOGY                VI.C.12
1245 METHOMYL (LANNATE)         16752-77-5 BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1246 METHOXYCHLOR               72-43-5    PHYSICAL IRRITATION    VI.C.10
1247 4-METHOXYPHENOL            150-76-5   ANALOGY                VI.C.12
1248 METHYL 2-CYANOACRYLATE     137-05-3   SENSORY IRRITATION     VI.C.3
1249 METHYL ACETATE             79-20-9    NOAELs                 VI.C.9
1250 METHYL ACETYLENE/
     PROPADIENE MIXTURE         None       ANALOGY                VI.C.12
1251 METHYL ACRYLONITRILE       126-98-7   NEUROPATHY             VI.C.1
1252 METHYL ALCOHOL             67-56-1    OCULAR EFFECTS         VI.C.5
1253 METHYL BROMIDE             74-83-9    NEUROPATHY             VI.C.1
1254 METHYL CHLORIDE            74-87-3    NARCOSIS               VI.C.2
1255 METHYL CHLOROFORM
     (1,1,1-TRICHLOROETHANE)    71-55-6    NARCOSIS               VI.C.2
1256 METHYL DEMETON             8022-00-2  ANALOGY                VI.C.12
1257 METHYL ETHYL KETONE
     PEROXIDE                   1338-23-4  ANALOGY                VI.C.12
1258 METHYL FORMATE             107-31-3   ANALOGY                VI.C.12
1259 METHYL IODIDE              74-88-4    ANALOGY                VI.C.12
1260 METHYL ISOAMYL KETONE      110-12-3   ANALOGY                VI.C.12
1261 METHYL ISOBUTYL CARBINOL   108-11-2   SENSORY IRRITATION     VI.C.3
1262 METHYL ISOPROPYL KETONE    563-80-4   ANALOGY                VI.C.12
1263 METHYL MERCAPTAN           74-93-1    SENSORY IRRITATION     VI.C.3
1264 METHYL N-AMYL KETONE       110-43-0   SENSORY IRRITATION     VI.C.3
1265 METHYL PARATHION           298-00-0   ANALOGY                VI.C.12
1266 METHYL SILICATE            681-84-5   OCULAR EFFECTS         VI.C.5
1267 ALPHA-METHYL STYRENE       98-83-9    SENSORY IRRITATION     VI.C.3
1268 METHYLCYCLOHEXANE          108-87-2   ANALOGY                VI.C.12
1269 METHYLCYCLOHEXANOL         25639-42-3 LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1270 O-METHYLCYCLOHEXANONE      583-60-8   SENSORY IRRITATION     VI.C.3
1271 METHYLCYCLOPENTADIENYL MN
     TRICARBONYL                12108-13-3 ANALOGY                VI.C.12
1272 METHYLENE BIS
     (4-CYCLOHEXYLISOCYANATE)   5124-30-1  RESPIRATORY EFFECTS    VI.C.6
1273 4,4'-METHYLENE BIS
     (2-CHLOROANILINE)          101-14-4   SYSTEMIC TOXICITY      VI.C.8
1275 METRIBUZIN                 21087-64-9 NOAELs                 VI.C.9
1276 MICA                       12001-26-2 RESPIRATORY EFFECTS    VI.C.6
1277 MINERAL WOOL FIBER         None       RESPIRATORY EFFECTS    VI.C.6
1278 MOLYBDENUM (INSOLUBLE
     COMPOUNDS)                 7439-98-7  PHYSICAL IRRITATION    VI.C.10
1279 MONOCROTOPHOS (AZODRIN)    6923-22-4  ANALOGY                VI.C.12
1280 MONOMETHYL ANILINE         100-61-8   BIOCHEMICAL/METABOLIC
                                             EFFECTS              VI.C.13
1281 MORPHOLINE                 110-91-8   ANALOGY                VI.C.12
1282 NAPHTHALENE                91-20-3    OCULAR EFFECTS         VI.C.5
1283 NICKEL (SOLUBLE COMPOUNDS) 7440-02-0  RESPIRATORY EFFECTS    VI.C.6
1284 NICKEL CARBONYL            13463-39-3 INCREASING PEL         VI.C.16
1286 NITRIC ACID                7697-37-2  ANALOGY                VI.C.12
1287 P-NITROANILINE             100-01-6   ANALOGY                VI.C.12
1288 P-NITROCHLOROBENZENE       100-00-5   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1289 NITROGEN DIOXIDE           10102-44-0 RESPIRATORY EFFECTS    VI.C.6
1290 NITROGLYCERIN              55-63-0    CARDIOVASCULAR EFFECTS VI.C.7
1291 2-NITROPROPANE             79-46-9    CANCER                 VI.C.15
1292 NITROTOLUENE               99-08-1,
     (ALL ISOMERS)              99-99-0,   ANALOGY                VI.C.12
                                88-72-2
1293 NONANE                     111-84-2   ANALOGY                VI.C.12
1295 OCTACHLORONAPHTHALENE      2234-13-1  LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1296 OCTANE                     111-65-9   NARCOSIS               VI.C.2
1297 OIL MIST (MINERAL)         8012-95-1  NOAELs                 VI.C.9
1298 OSMIUM TETROXIDE           20816-12-0 SENSORY IRRITATION     VI.C.3
1299 OXALIC ACID                144-62-7   ANALOGY                VI.C.12
1300 OXYGEN DIFLUORIDE          7783-41-7  RESPIRATORY EFFECTS    VI.C.6
1301 OZONE                      10028-15-6 RESPIRATORY EFFECTS    VI.C.6
1302 PARAFFIN WAX FUME          8002-74-2  SENSORY IRRITATION     VI.C.3
1303 PARAQUAT, RESPIRABLE DUST  4685-14-7  RESPIRATORY EFFECTS    VI.C.6
1294 PARTICULATES NOT
     OTHERWISE REGULATED        None       PHYSICAL IRRITATION    VI.C.10
1304 PENTABORANE                19624-22-7 NEUROPATHY             VI.C.1
1305 PENTAERYTHRITOL, TOTAL
     DUST                       115-77-5   PHYSICAL IRRITATION    VI.C.10
1306 PENTANE                    109-66-0   NARCOSIS               VI.C.2
1307 2-PENTANONE (METHYL
     PROPYL KETONE)             107-87-9   NARCOSIS               VI.C.2
1308 PERCHLOROETHYLENE          127-18-4   CANCER                 VI.C.15
1309 PERCHLORYL FLUORIDE        7616-94-6  ANALOGY                VI.C.12
1310 PERLITE                    None       PHYSICAL IRRITATION    VI.C.10
1312 PETROLEUM DISTILLATES
     (NAPHTHA)                  None       NOAELs                 VI.C.9
1313 PHENOTHIAZINE              92-84-2    SENSITIZATION EFFECTS  VI.C.14
1314 PHENYL ETHER (VAPOR)       101-84-8   ODOR EFFECTS           VI.C.11
1315 PHENYL GLYCIDYL ETHER      122-60-1   SENSITIZATION EFFECTS  VI.C.14
1316 PHENYL MERCAPTAN           108-98-5   NEUROPATHY             VI.C.1
1317 PHENYLHYDRAZINE            100-63-0   SYSTEMIC TOXICITY      VI.C.8
1318 PHENYLPHOSPHINE            638-21-1   SYSTEMIC TOXICITY      VI.C.8
1319 PHORATE (THIMET)           298-02-2   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1320 PHOSDRIN (MEVINPHOS)       7786-34-7  ANALOGY                VI.C.12
1321 PHOSPHINE                  7803-51-2  SYSTEMIC TOXICITY      VI.C.8
1322 PHOSPHORIC ACID            7664-38-2  SENSORY IRRITATION     VI.C.8
1323 PHOSPHORUS OXYCHLORIDE     10025-87-3 ANALOGY                VI.C.12
1324 PHOSPHORUS PENTASULFIDE    1314-80-3  ANALOGY                VI.C.12
1325 PHOSPHORUS TRICHLORIDE     7719-12-2  SENSORY IRRITATION     VI.C.8
1326 PHTHALIC ANHYDRIDE         85-44-9    ANALOGY                VI.C.12
1327 M-PHTHALODINITRILE         626-17-5   NOAELs                 VI.C.9
1328 PICLORAM (TORDOM)          1918-02-1  PHYSICAL IRRITATION    VI.C.10
1329 PICRIC ACID                88-89-1    SENSITIZATION EFFECTS  VI.C.14
1330 PIPERAZINE
     DIHYDROCHLORIDE            142-64-3   SYSTEMIC TOXICITY      VI.C.8
1331 PLASTER OF PARIS, TOTAL
     DUST                       7778-18-9  PHYSICAL IRRITATION    VI.C.10
1332 PLATINUM, METAL            7740-06-4  NOAELs                 VI.C.9
1333 PORTLAND CEMENT            None       PHYSICAL IRRITATION    VI.C.10
1334 POTASSIUM HYDROXIDE        1310-58-3  SENSORY IRRITATION     VI.C.3
1335 PROPARGYL ALCOHOL          107-19-7   ANALOGY                VI.C.12
1336 PROPIONIC ACID             79-09-4    ANALOGY                VI.C.12
1337 PROPOXUR (BAYGON)          114-26-1   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1338 N-PROPYL ACETATE           109-60-4   ANALOGY                VI.C.12
1339 PROPYL ALCOHOL             71-23-8    ANALOGY                VI.C.12
1340 N-PROPYL NITRATE           627-13-4   SYSTEMIC TOXICITY      VI.C.8
1341 PROPYLENE DICHLORIDE       78-87-5    LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1342 1,2-PROPYLENE GLYCOL
       DINITRATE                6423-43-4  NEUROPATHY             VI.C.1
1343 PROPYLENE GLYCOL
       MONOMETHYL ETHER         107-98-2   SENSORY IRRITATION     VI.C.3
1344 PROPYLENE OXIDE            75-56-9    ANALOGY                VI.C.12
1346 RESORCINOL                 108-46-3   NOAELs                 VI.C.9
1347 RHODIUM (METAL, FUME &
     INSOLUBLE COMPOUNDS)       7440-16-6  INCREASING PEL         VI.C.16
1348 RHODIUM (SOLUBLE SALTS)    7440-16-6  INCREASING PEL         VI.C.16
1349 RONNEL                     299-84-3   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1350 ROSIN CORE SOLDER
     PYROLYSIS PRODUCT
     (AS HCHO)                  None       SENSORY IRRITATION     VI.C.3
1351 ROUGE, TOTAL DUST          None       PHYSICAL IRRITATION    VI.C.10
1352 SILICA, AMORPHOUS,
     DIATOMACEOUS EARTH         68855-54-9 INCREASING PEL         VI.C.16
1353 SILICA, AMORPHOUS,
     PRECIPITATED OR GEL        None       INCREASING PEL         VI.C.16
1354 SILICA, CRYSTALLINE-
     CRISTOBALITE               14464-46-1 RESPIRATORY EFFECTS    VI.C.6
1355 SILICA, CRYSTALLINE
     QUARTZ, RESPIRABLE         14808-60-7 RESPIRATORY EFFECTS    VI.C.6
1356 SILICA, CRYSTALLINE
     TRIDYMITE                  15468-32-3 RESPIRATORY EFFECTS    VI.C.6
1357 SILICA, CRYSTALLINE
     TRIPOLI (AS QUARTZ
     DUST)                      1317-95-9  RESPIRATORY EFFECTS    VI.C.6
1358 SILICA, FUSED              60676-86-0 RESPIRATORY EFFECTS    VI.C.6
1359 SILICON                    7440-21-3  PHYSICAL IRRITATION    VI.C.10
1360 SILICON CARBIDE            409-21-2   PHYSICAL IRRITATION    VI.C.10
1361 SILICON TETRAHYDRIDE       7803-62-5  ANALOGY                VI.C.12
1362 SILVER, METAL, DUST, AND
     FUME                       7440-22-4  INCREASING PEL         VI.C.16
1363 SOAPSTONE, TOTAL DUST      None       RESPIRATORY EFFECTS    VI.C.6
1363A SOAPSTONE, RESPIRABLE
     DUST                       None       RESPIRATORY EFFECTS    VI.C.6
1364 SODIUM AZIDE               26628-22-8 CARDIOVASCULAR EFFECTS VI.C.7
1365 SODIUM BISULFITE           7631-90-5  SENSORY IRRITATION     VI.C.3
1366 SODIUM FLUOROACETATE       62-74-8    SYSTEMIC TOXICITY      VI.C.8
1367 SODIUM HYDROXIDE           1310-73-2  SENSORY IRRITATION     VI.C.3
1368 SODIUM METABISULFITE       7681-57-4  SENSORY IRRITATION     VI.C.3
1369 STARCH, TOTAL DUST         9005-25-8  PHYSICAL IRRITATION    VI.C.10
1371 STODDARD SOLVENT           8052-41-3  NARCOSIS               VI.C.2
1372 STYRENE (PHENYLETHYLENE)   100-42-5   NARCOSIS               VI.C.2
1373 SUBTILISINS (PROTEOLYTIC
     ENZYMES)                   1395-21-7  SENSITIZATION EFFECTS  VI.C.14
1374 SUCROSE, TOTAL DUST        57-50-1    PHYSICAL IRRITATION    VI.C.10
1375 SULFUR DIOXIDE             7446-09-5  RESPIRATORY EFFECTS    VI.C.6
1376 SULFUR MONOCHLORIDE        10025-67-9 SENSORY IRRITATION     VI.C.3
1377 SULFUR PENTAFLUORIDE       5714-22-7  SENSORY IRRITATION     VI.C.3
1378 SULFUR TETRAFLUORIDE       7783-60-0  RESPIRATORY EFFECTS    VI.C.6
1379 SULFURYL FLUORIDE          2699-79-8  ANALOGY                VI.C.12
1380 SULPROFOS                  35400-43-2 BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1381 TALC (NON-ASBESTIFORM)     14807-96-6 RESPIRATORY EFFECTS    VI.C.6
1382 TANTALUM                   7440-25-7  NOAELs                 VI.C.9
1383 TEMEPHOS                   3383-96-8  PHYSICAL IRRITATION    VI.C.10
1384 TARPHENYLS                 26140-60-3 BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1385 1,1,2,2-TETRACHLOROETHANE  79-34-5    LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1386 TETRAETHYL LEAD            78-00-2    INCREASING PEL         VI.C.16
1387 TETRAHYDROFURAN            109-99-9   SENSORY IRRITATION     VI.C.3
1388 TETRAMETHYL LEAD           75-74-1    INCREASING PEL         VI.C.16
1389 TETRASODIUM PYROPHOSPHATE  7722-88-5  SENSORY IRRITATION     VI.C.3
1391 4,4'-THIOBIS
     (6-TERT-BUTYL-M-CRESOL)    96-69-5    PHYSICAL IRRITATION    VI.C.10
1392 THIOGLYCOLIC ACID          68-11-1    SENSORY IRRITATION     VI.C.3
1393 THIONYL CHLORIDE           7719-09-7  ANALOGY                VI.C.12
1394 TIN (ORGANIC COMPOUNDS)    7440-31-5  CHANGE IN SKIN
                                           DESIGNATION ONLY       VI.C.18
1395 TIN OXIDE                  7440-31-5  RESPIRATORY EFFECTS    VI.C.6
1396 TITANIUM DIOXIDE           13463-67-7 PHYSICAL IRRITATION    VI.C.10
1397 TOLUENE                    108-88-3   NARCOSIS               VI.C.2
1398 TOLUENE-2,4-DIISOCYANATE   584-84-9   SENSITIZATION EFFECTS  VI.C.14
1399 O-TOLUIDINE                95-53-4    CANCER                 VI.C.15
1400 P-TOLUIDINE                106-49-0   CANCER                 VI.C.15
1401 M-TOLUIDINE                108-44-1   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1402 TRIBUTYL PHOSPHATE         126-73-8   ANALOGY                VI.C.12
1403 1,1,2-TRICHLORO-1,2,
     2-TRIFLUOROETHANE          76-13-1    CARDIOVASCULAR EFFECTS VI.C.7
1404 TRICHLOROACETIC ACID       76-03-9    ANALOGY                VI.C.12
1405 1,2,4-TRICHLOROBENZENE     120-82-1   SENSORY IRRITATION     VI.C.3
1406 TRICHLOROETHYLENE          79-01-6    NARCOSIS               VI.C.2
1407 1,2,3-TRICHLOROPROPANE     96-18-4    LIVER & KIDNEY 
                                           EFFECTS                VI.C.4
1408 TRIETHYLAMINE              121-44-8   SENSORY IRRITATION     VI.C.3
1409 TRIMMELITIC ANHYDRIDE      552-30-7   RESPIRATORY EFFECTS    VI.C.6
1410 TRIMETHYL PHOSPHITE        121-45-9   NOAELs                 VI.C.9
1411 TRIMETHYLAMINE             75-50-3    ANALOGY                VI.C.12
1412 TRIMETHYLBENZENE           25551-13-7 SYSTEMIC TOXICITY      VI.C.8
1413 2,4,6-TRINITROTOLUENE
     (TNT)                      118-96-7   BIOCHEMICAL/METABOLIC
                                           EFFECTS                VI.C.13
1414 TRIORTHOCRESYL PHOSPHATE   78-30-8    CHANGE IN SKIN
                                           DESIGNATION ONLY       VI.C.18
1415 TRIPHENYL AMINE            603-34-9   NOAELs                 VI.C.9
1416 TUNGSTEN & COMPOUNDS
     (INSOLUBLE)                7440-33-7  SYSTEMIC TOXICITY      VI.C.8
1417 TUNGSTEN & COMPOUNDS
     (SOLUBLE)                  7440-33-7  SYSTEMIC TOXICITY      VI.C.8
1418 URANIUM (INSOLUBLE
     COMPOUNDS)                 7440-61-1  NOAELs                 VI.C.9
1419 URANIUM (SOLUBLE
     COMPOUNDS)                 7440-61-1  INCREASING PEL         VI.C.16
1420 N-VALERALDEHYDE            110-62-3   ANALOGY                VI.C.12
1421 VANADIUM (V205, DUST)      1314-62-1  SENSORY IRRITATION     VI.C.3
1422 VANADIUM (V205, FUME)      1314-62-1  SENSORY IRRITATION     VI.C.3
1423 VEGETABLE OIL MIST         None       PHYSICAL IRRITATION    VI.C.10
1424 VINYL ACETATE              108-05-4   SENSORY IRRITATION     VI.C.3
1425 VINYL BROMIDE              593-60-2   CANCER                 VI.C.15
1426 VINYL CYCLOHEXENE DIOXIDE  106-87-6   CANCER                 VI.C.15
1427 VINYL TOLUENE              25013-15-4 ODOR EFFECTS           VI.C.11
1428 VINYLIDENE CHLORIDE        75-35-4    SYSTEMIC TOXICITY      VI.C.8
1429 VM & P NAPHTHA         8032-32-4  SENSORY IRRITATION     VI.C.3
1430 WELDING FUMES (TOTAL
     PARTICULATE)               None       SYSTEMIC TOXICITY      VI.C.8
1430a WOOD DUST, HARD WOOD      None       RESPIRATORY EFFECTS    VI.C.6
1430b WOOD DUST, SOFT WOOD      None       RESPIRATORY EFFECTS    VI.C.6
1430c WOOD DUST, WESTERN RED
      CEDAR                     None       RESPIRATORY EFFECTS    VI.C.6
1431 XYLENE (O,M,P-ISOMERS)     1330-20-7  SENSORY IRRITATION     VI.C.3
1432 M-XYLENE-ALPHA,ALPHA'-
     DIAMINE                    1477-55-0  ANALOGY                VI.C.12
1433 XYLIDINE                   1300-73-8  ANALOGY                VI.C.12
1434 ZINC STEARATE              557-05-1   PHYSICAL IRRITATION    VI.C.10
1435 ZINC CHLORIDE FUME         7646-85-7  SENSORY IRRITATION     VI.C.3
1436 ZINC CHROMATES (CrVI)      Varies     CANCER                 VI.C.15
1437 ZINC OXIDE (FUME)          1314-13-2  SYSTEMIC TOXICITY      VI.C.8
1438 ZINC OXIDE, TOTAL DUST     1314-13-2  PHYSICAL IRRITATION    VI.C.10
1439 ZIRCONIUM COMPOUNDS        7440-67-7  SYSTEMIC TOXICITY      VI.C.8
---------------------------------------------------------------------------


[54 FR 2332, Jan. 19, 1989; 54 FR 14909, April 13, 1989; 54 FR 28154, July 5, 1989]



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