| Cobalt | 342.14 |
| Chromium | 125.79 |
| 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.) | 105.35 |
| Trichloroethylene | 18.05 |
| Nickel | 17.18 |
| Nickel compounds | 8.44 |
| Cadmium compounds | 6.26 |
| Chloroform | 4.21 |
| Benzene | 3.55 |
| Diisocyanates | 2.97 |
| Formaldehyde | 2.89 |
| Toluene diisocyanate (mixed isomers) | 1.67 |
| Polycyclic aromatic compounds | 1.35 |
| Xylene (mixed isomers) | 0.77 |
| Di(2-ethylhexyl) phthalate | 0.52 |
| Chlorine | 0.36 |
| Antimony compounds | 0.24 |
| Dichloromethane (Methylene chloride) | 0.18 |
| Copper | 0.14 |
| Certain glycol ethers | 0.09 |
| Naphthalene | 0.06 |
| Ethylbenzene | 0.06 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.05 |
| Lead | 0.04 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.03 |
| Lead compounds | 0.03 |
| Triethylamine | 0.02 |
| Acetonitrile | 0.02 |
| n-Hexane (Hexane) | 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 |
| Butyl acrylate | 0.01 |
| Nitric acid | 0.01 |
| Zinc compounds | 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 |
| Manganese | 0.00 |
| Silver compounds | 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 |
| Toluene-2,4-diisocyanate | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Acetophenone | 0.00 |
| Methyl methacrylate | 0.00 |
| Methanol | 0.00 |
| Vinyl acetate | 0.00 |
| Mercury | 0.00 |
| Ethylene glycol | 0.00 |
| Styrene | 0.00 |
| Propylene oxide | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Silver | 0.00 |
| Cyclohexane | 0.00 |
| Cumene | 0.00 |
| Ethyl acrylate | 0.00 |
| Formic acid | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 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 |
