| Cobalt | 393.03 |
| 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.) | 94.34 |
| Nickel compounds | 84.55 |
| Chromium | 75.36 |
| Ethylene oxide | 55.32 |
| Cadmium compounds | 11.24 |
| Nickel | 6.14 |
| Benzene | 4.13 |
| Acetaldehyde | 3.69 |
| Diisocyanates | 2.68 |
| Toluene diisocyanate (mixed isomers) | 1.84 |
| Di(2-ethylhexyl) phthalate | 0.66 |
| Chlorine | 0.63 |
| Formaldehyde | 0.61 |
| Butyl acrylate | 0.52 |
| Acrylonitrile | 0.36 |
| Antimony compounds | 0.27 |
| Copper | 0.23 |
| Polycyclic aromatic compounds | 0.20 |
| Maleic anhydride | 0.16 |
| Ethylbenzene | 0.15 |
| Manganese compounds | 0.11 |
| Acrylic acid | 0.11 |
| Manganese | 0.08 |
| Xylene (mixed isomers) | 0.07 |
| Triethylamine | 0.05 |
| Nitric acid | 0.05 |
| Lead | 0.04 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.03 |
| Naphthalene | 0.03 |
| Lead compounds | 0.03 |
| Certain glycol ethers | 0.03 |
| Acetonitrile | 0.02 |
| Styrene | 0.02 |
| Vinyl acetate | 0.02 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.02 |
| Cyanide compounds | 0.02 |
| Dichloromethane (Methylene chloride) | 0.01 |
| Zinc compounds | 0.01 |
| Methyl methacrylate | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| n-Butyl alcohol (1-Butanol) | 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 |
| 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 |
| Mercury compounds | 0.00 |
| Phenol | 0.00 |
| Acetophenone | 0.00 |
| Pyridine | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Silver compounds | 0.00 |
| Toluene | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Ethylene glycol | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Ethyl acrylate | 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 |
| Mercury | 0.00 |
| Methanol | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Biphenyl | 0.00 |
| Cyclohexane | 0.00 |
| Propylene oxide | 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 |
