| Cadmium compounds | 252.04 |
| 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.) | 106.75 |
| Chromium | 102.10 |
| Ethylene oxide | 100.14 |
| Cobalt | 69.76 |
| Nickel compounds | 37.08 |
| Nickel | 28.85 |
| Toluene diisocyanate (mixed isomers) | 7.54 |
| Chlorine | 7.14 |
| Benzene | 5.66 |
| Diisocyanates | 4.44 |
| Polycyclic aromatic compounds | 2.30 |
| Di(2-ethylhexyl) phthalate | 1.22 |
| Formaldehyde | 0.78 |
| Antimony compounds | 0.70 |
| Chloroform | 0.67 |
| Acrylonitrile | 0.54 |
| Copper | 0.43 |
| Cyanide compounds | 0.17 |
| Lead | 0.15 |
| Ethylbenzene | 0.09 |
| Xylene (mixed isomers) | 0.09 |
| Lead compounds | 0.08 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.07 |
| Nitric acid | 0.07 |
| Silver compounds | 0.06 |
| Triethylamine | 0.06 |
| Naphthalene | 0.05 |
| 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) | 0.05 |
| Manganese compounds | 0.04 |
| Certain glycol ethers | 0.03 |
| Butyl acrylate | 0.03 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.03 |
| Acetonitrile | 0.03 |
| Maleic anhydride | 0.02 |
| Dichloromethane (Methylene chloride) | 0.02 |
| N,N-Dimethylformamide | 0.02 |
| Zinc compounds | 0.01 |
| 1,2,4-Trimethylbenzene | 0.01 |
| Manganese | 0.01 |
| Pyridine | 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 |
| Acrylic acid | 0.01 |
| Phenol | 0.01 |
| Mercury compounds | 0.01 |
| Methyl methacrylate | 0.01 |
| Acetophenone | 0.01 |
| Styrene | 0.01 |
| Aluminum (fume or dust) | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Toluene | 0.00 |
| Acetaldehyde | 0.00 |
| Vinyl acetate | 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 |
| Zinc (fume or dust) | 0.00 |
| Ethyl acrylate | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Cyclohexane | 0.00 |
| Ethylene glycol | 0.00 |
| Cumene | 0.00 |
| Propylene oxide | 0.00 |
| Biphenyl | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Formic acid | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| MIXTURE | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
