| Cobalt | 615.49 |
| Chromium | 105.49 |
| 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.) | 97.45 |
| Nickel compounds | 95.12 |
| Ethylene oxide | 50.40 |
| Nickel | 6.73 |
| Cadmium compounds | 5.91 |
| Benzene | 3.27 |
| Acetaldehyde | 2.94 |
| Diisocyanates | 2.79 |
| Toluene diisocyanate (mixed isomers) | 1.90 |
| Formaldehyde | 0.77 |
| Di(2-ethylhexyl) phthalate | 0.51 |
| Chlorine | 0.51 |
| Copper | 0.31 |
| Acrylonitrile | 0.29 |
| Butyl acrylate | 0.24 |
| Antimony compounds | 0.22 |
| Polycyclic aromatic compounds | 0.18 |
| Ethylbenzene | 0.09 |
| Manganese compounds | 0.08 |
| Manganese | 0.08 |
| Maleic anhydride | 0.08 |
| Xylene (mixed isomers) | 0.07 |
| Acrylic acid | 0.05 |
| Lead | 0.05 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.05 |
| Nitric acid | 0.04 |
| Triethylamine | 0.04 |
| Lead compounds | 0.04 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.03 |
| Certain glycol ethers | 0.03 |
| Naphthalene | 0.02 |
| Styrene | 0.02 |
| Acetonitrile | 0.02 |
| Dichloromethane (Methylene chloride) | 0.02 |
| Zinc compounds | 0.02 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| Cyanide compounds | 0.01 |
| Vinyl acetate | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| Methyl methacrylate | 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-Butyl alcohol (1-Butanol) | 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 | 0.00 |
| Mercury compounds | 0.00 |
| Phenol | 0.00 |
| Acetophenone | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Silver compounds | 0.00 |
| Toluene | 0.00 |
| Ethylene glycol | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Silver | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Ethyl acrylate | 0.00 |
| Mercury | 0.00 |
| Methanol | 0.00 |
| Biphenyl | 0.00 |
| Propylene oxide | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Cyclohexane | 0.00 |
| Cumene | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| Formic acid | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
