| Nickel compounds | 652.76 |
| Cobalt | 173.32 |
| Chromium | 90.30 |
| Nickel | 41.32 |
| Diisocyanates | 17.41 |
| 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.) | 11.31 |
| Cadmium compounds | 3.14 |
| Benzene | 2.38 |
| Acetaldehyde | 1.20 |
| Formaldehyde | 0.65 |
| Manganese | 0.57 |
| Toluene diisocyanate (mixed isomers) | 0.48 |
| Chlorine | 0.31 |
| Acrylonitrile | 0.23 |
| Di(2-ethylhexyl) phthalate | 0.20 |
| Copper | 0.16 |
| Butyl acrylate | 0.14 |
| Nitric acid | 0.10 |
| Antimony compounds | 0.09 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.07 |
| Ethylbenzene | 0.07 |
| Methyl isobutyl ketone | 0.05 |
| Maleic anhydride | 0.05 |
| Polycyclic aromatic compounds | 0.04 |
| Zinc compounds | 0.04 |
| Manganese compounds | 0.03 |
| Acrylic acid | 0.03 |
| Lead | 0.03 |
| Naphthalene | 0.03 |
| Triethylamine | 0.02 |
| Zinc (fume or dust) | 0.02 |
| Lead compounds | 0.02 |
| Xylene (mixed isomers) | 0.01 |
| Styrene | 0.01 |
| Cyanide compounds | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| Acetonitrile | 0.01 |
| Methyl methacrylate | 0.01 |
| N,N-Dimethylformamide | 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 |
| n-Hexane (Hexane) | 0.00 |
| Mercury compounds | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.00 |
| Phenol | 0.00 |
| Silver compounds | 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 |
| Toluene | 0.00 |
| Ethylene glycol | 0.00 |
| Biphenyl | 0.00 |
| Silver | 0.00 |
| Ethyl acrylate | 0.00 |
| Certain glycol ethers | 0.00 |
| Methanol | 0.00 |
| Cyclohexane | 0.00 |
| Cumene | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Mercury | 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 |
| Acetophenone | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
