| Cobalt | 176.19 |
| 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.) | 102.48 |
| Ethylene oxide | 66.78 |
| Nickel compounds | 48.69 |
| Chromium | 47.24 |
| Cadmium compounds | 26.67 |
| Benzene | 8.89 |
| Nickel | 6.38 |
| Acetaldehyde | 3.42 |
| Diisocyanates | 3.23 |
| Toluene diisocyanate (mixed isomers) | 1.93 |
| Di(2-ethylhexyl) phthalate | 1.75 |
| Chlorine | 1.34 |
| Antimony compounds | 0.78 |
| Acrylonitrile | 0.62 |
| Formaldehyde | 0.49 |
| Polycyclic aromatic compounds | 0.37 |
| Copper | 0.29 |
| Ethylbenzene | 0.20 |
| Triethylamine | 0.17 |
| Butyl acrylate | 0.10 |
| Manganese compounds | 0.09 |
| Xylene (mixed isomers) | 0.08 |
| Nitric acid | 0.07 |
| Naphthalene | 0.07 |
| Manganese | 0.05 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.05 |
| Maleic anhydride | 0.04 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.04 |
| Lead | 0.04 |
| Lead compounds | 0.04 |
| 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) | 0.04 |
| Cyanide compounds | 0.03 |
| Acetonitrile | 0.03 |
| Methyl methacrylate | 0.02 |
| Certain glycol ethers | 0.02 |
| Styrene | 0.02 |
| Acrylic acid | 0.02 |
| N,N-Dimethylformamide | 0.02 |
| 1,2,4-Trimethylbenzene | 0.01 |
| Zinc compounds | 0.01 |
| Dichloromethane (Methylene chloride) | 0.01 |
| Mercury compounds | 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 |
| Phenol | 0.01 |
| Silver compounds | 0.01 |
| Acetophenone | 0.01 |
| Pyridine | 0.01 |
| n-Hexane (Hexane) | 0.00 |
| Vinyl acetate | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Toluene | 0.00 |
| Ethylene glycol | 0.00 |
| Silver | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Ethyl acrylate | 0.00 |
| Mercury | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Methanol | 0.00 |
| Cyclohexane | 0.00 |
| Cumene | 0.00 |
| Biphenyl | 0.00 |
| Propylene oxide | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 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 |
