| Cobalt | 504.23 |
| 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.) | 109.99 |
| Chromium | 98.39 |
| Nickel compounds | 45.93 |
| Nickel | 8.07 |
| Cadmium compounds | 6.51 |
| Benzene | 3.18 |
| Formaldehyde | 2.05 |
| Diisocyanates | 1.99 |
| Toluene diisocyanate (mixed isomers) | 1.06 |
| Polycyclic aromatic compounds | 1.00 |
| Chloroform | 0.72 |
| Chlorine | 0.43 |
| Antimony compounds | 0.23 |
| Di(2-ethylhexyl) phthalate | 0.22 |
| Acrylonitrile | 0.18 |
| Copper | 0.17 |
| Xylene (mixed isomers) | 0.14 |
| Certain glycol ethers | 0.08 |
| Ethylbenzene | 0.07 |
| Lead | 0.05 |
| Acetonitrile | 0.04 |
| Naphthalene | 0.04 |
| Dichloromethane (Methylene chloride) | 0.04 |
| Butyl acrylate | 0.03 |
| Nitric acid | 0.03 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.02 |
| Lead compounds | 0.02 |
| Manganese | 0.02 |
| Zinc compounds | 0.02 |
| Triethylamine | 0.02 |
| Maleic anhydride | 0.02 |
| Cyanide compounds | 0.01 |
| Acrylic acid | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 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 |
| Styrene | 0.01 |
| Phenol | 0.01 |
| N,N-Dimethylformamide | 0.00 |
| Methyl methacrylate | 0.00 |
| n-Hexane (Hexane) | 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 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Pyridine | 0.00 |
| Acetophenone | 0.00 |
| Silver compounds | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Toluene | 0.00 |
| Mercury | 0.00 |
| Vinyl acetate | 0.00 |
| Mercury compounds | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Silver | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Methanol | 0.00 |
| Propylene oxide | 0.00 |
| Ethyl acrylate | 0.00 |
| Ethylene glycol | 0.00 |
| Biphenyl | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Cyclohexane | 0.00 |
| Cumene | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| Formic acid | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
