| Cobalt | 447.09 |
| 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.) | 175.64 |
| Chromium | 98.44 |
| Nickel compounds | 41.23 |
| Cadmium compounds | 10.55 |
| Nickel | 9.15 |
| Benzene | 4.02 |
| Toluene diisocyanate (mixed isomers) | 2.58 |
| Diisocyanates | 2.23 |
| Formaldehyde | 1.75 |
| Polycyclic aromatic compounds | 1.47 |
| Chloroform | 0.72 |
| Chlorine | 0.62 |
| Di(2-ethylhexyl) phthalate | 0.31 |
| Antimony compounds | 0.28 |
| Acrylonitrile | 0.27 |
| Copper | 0.23 |
| Xylene (mixed isomers) | 0.14 |
| Certain glycol ethers | 0.09 |
| Ethylbenzene | 0.07 |
| Acetonitrile | 0.07 |
| Lead | 0.07 |
| Naphthalene | 0.05 |
| Nitric acid | 0.04 |
| Butyl acrylate | 0.03 |
| 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) | 0.03 |
| Lead compounds | 0.03 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.03 |
| Zinc compounds | 0.03 |
| Dichloromethane (Methylene chloride) | 0.03 |
| Triethylamine | 0.03 |
| Maleic anhydride | 0.02 |
| Cyanide compounds | 0.02 |
| Manganese | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| Acrylic acid | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 0.01 |
| 1,2,4-Trimethylbenzene | 0.01 |
| Methyl methacrylate | 0.00 |
| Styrene | 0.00 |
| Phenol | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Pyridine | 0.00 |
| Silver compounds | 0.00 |
| Acetophenone | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Toluene | 0.00 |
| Vinyl acetate | 0.00 |
| Mercury compounds | 0.00 |
| Mercury | 0.00 |
| Silver | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Methanol | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Ethyl acrylate | 0.00 |
| Ethylene glycol | 0.00 |
| Propylene oxide | 0.00 |
| Cyclohexane | 0.00 |
| Biphenyl | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Cumene | 0.00 |
| Formic acid | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
