| Cobalt | 221.35 |
| Nickel compounds | 179.17 |
| Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 81.34 |
| Chromium | 66.75 |
| Ethylene oxide | 43.21 |
| Nickel | 6.53 |
| Cadmium compounds | 5.19 |
| Benzene | 3.17 |
| Diisocyanates | 2.34 |
| Acetaldehyde | 1.54 |
| Toluene diisocyanate (mixed isomers) | 0.98 |
| Formaldehyde | 0.70 |
| Chlorine | 0.39 |
| Butyl acrylate | 0.30 |
| Di(2-ethylhexyl) phthalate | 0.30 |
| Acrylonitrile | 0.29 |
| Manganese | 0.22 |
| Antimony compounds | 0.14 |
| Copper | 0.13 |
| Polycyclic aromatic compounds | 0.11 |
| Ethylbenzene | 0.09 |
| Maleic anhydride | 0.09 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.07 |
| Acrylic acid | 0.06 |
| Manganese compounds | 0.04 |
| Styrene | 0.04 |
| Nitric acid | 0.03 |
| Triethylamine | 0.03 |
| Naphthalene | 0.03 |
| Lead | 0.02 |
| Lead compounds | 0.02 |
| Xylene (mixed isomers) | 0.02 |
| Certain glycol ethers | 0.02 |
| Dichloromethane (Methylene chloride) | 0.01 |
| Vinyl acetate | 0.01 |
| Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 0.01 |
| Cyanide compounds | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| Acetonitrile | 0.01 |
| Zinc compounds | 0.01 |
| Methyl methacrylate | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| Mercury compounds | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Phenol | 0.00 |
| Acetophenone | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Toluene | 0.00 |
| Silver compounds | 0.00 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.00 |
| Ethylene glycol | 0.00 |
| Silver | 0.00 |
| Ethyl acrylate | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Mercury | 0.00 |
| Biphenyl | 0.00 |
| Methanol | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Propylene oxide | 0.00 |
| Cyclohexane | 0.00 |
| Cumene | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Formic acid | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
