| Ethylene oxide | 169.85 |
| 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.) | 93.04 |
| Cobalt | 88.44 |
| Chromium | 38.27 |
| Nickel compounds | 32.62 |
| Cadmium compounds | 27.39 |
| Benzene | 12.20 |
| Di(2-ethylhexyl) phthalate | 11.06 |
| Nickel | 6.30 |
| Diisocyanates | 5.39 |
| Antimony compounds | 3.68 |
| Acetaldehyde | 2.30 |
| Acrylonitrile | 1.65 |
| Chlorine | 1.45 |
| Toluene diisocyanate (mixed isomers) | 1.34 |
| Polycyclic aromatic compounds | 0.57 |
| Formaldehyde | 0.51 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.25 |
| Copper | 0.17 |
| Triethylamine | 0.17 |
| Ethylbenzene | 0.17 |
| Naphthalene | 0.13 |
| Nitric acid | 0.13 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.08 |
| Xylene (mixed isomers) | 0.07 |
| Manganese compounds | 0.07 |
| N,N-Dimethylformamide | 0.07 |
| 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) | 0.07 |
| Lead compounds | 0.05 |
| Lead | 0.04 |
| Cyanide compounds | 0.04 |
| Maleic anhydride | 0.04 |
| Manganese | 0.04 |
| 1,2,4-Trimethylbenzene | 0.04 |
| Acetophenone | 0.02 |
| Acetonitrile | 0.02 |
| Butyl acrylate | 0.02 |
| Phenol | 0.02 |
| Certain glycol ethers | 0.02 |
| Zinc compounds | 0.02 |
| Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 0.01 |
| Mercury compounds | 0.01 |
| Pyridine | 0.01 |
| Dichloromethane (Methylene chloride) | 0.01 |
| Silver compounds | 0.01 |
| Styrene | 0.01 |
| n-Butyl alcohol (1-Butanol) | 0.01 |
| Aluminum (fume or dust) | 0.01 |
| Acrylic acid | 0.01 |
| n-Hexane (Hexane) | 0.00 |
| Methyl methacrylate | 0.00 |
| Toluene | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Silver | 0.00 |
| Ethylene glycol | 0.00 |
| Vinyl acetate | 0.00 |
| Ethyl acrylate | 0.00 |
| Mercury | 0.00 |
| Methanol | 0.00 |
| Cyclohexane | 0.00 |
| Cumene | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Phthalic anhydride | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Biphenyl | 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 |
