| Cobalt | 340.26 |
| 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.) | 133.26 |
| Chromium | 132.33 |
| Nickel | 19.43 |
| Trichloroethylene | 18.99 |
| Nickel compounds | 8.84 |
| Cadmium compounds | 5.98 |
| Chloroform | 4.71 |
| Benzene | 4.04 |
| Diisocyanates | 3.08 |
| Formaldehyde | 2.28 |
| Xylene (mixed isomers) | 1.70 |
| Polycyclic aromatic compounds | 1.47 |
| Toluene diisocyanate (mixed isomers) | 1.45 |
| Di(2-ethylhexyl) phthalate | 0.55 |
| Chlorine | 0.35 |
| Antimony compounds | 0.27 |
| Certain glycol ethers | 0.14 |
| Copper | 0.14 |
| Dichloromethane (Methylene chloride) | 0.13 |
| Naphthalene | 0.07 |
| Ethylbenzene | 0.06 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.06 |
| Lead | 0.04 |
| Lead compounds | 0.04 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.04 |
| Triethylamine | 0.02 |
| Acetonitrile | 0.02 |
| Nitric acid | 0.02 |
| 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 |
| Zinc compounds | 0.01 |
| n-Hexane (Hexane) | 0.01 |
| Butyl acrylate | 0.01 |
| 1,2,4-Trimethylbenzene | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| Cyanide compounds | 0.01 |
| Maleic anhydride | 0.01 |
| Phenol | 0.01 |
| Silver compounds | 0.00 |
| Manganese | 0.00 |
| N,N-Dimethylformamide | 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 |
| Acrylic acid | 0.00 |
| Toluene | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Pyridine | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Toluene-2,4-diisocyanate | 0.00 |
| o-Xylene | 0.00 |
| Acetophenone | 0.00 |
| Methyl methacrylate | 0.00 |
| Methanol | 0.00 |
| Mercury | 0.00 |
| Vinyl acetate | 0.00 |
| Ethylene glycol | 0.00 |
| Styrene | 0.00 |
| Propylene oxide | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Silver | 0.00 |
| Cyclohexane | 0.00 |
| Cumene | 0.00 |
| Formic acid | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Ethyl acrylate | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Benzoyl peroxide | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
