| Toluene diisocyanate (mixed isomers) | 237.47 |
| 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.) | 184.76 |
| Cobalt | 119.68 |
| Ethylene oxide | 81.18 |
| Chromium | 77.64 |
| Nickel compounds | 39.69 |
| Cadmium compounds | 27.02 |
| Nickel | 11.00 |
| Benzene | 4.92 |
| Diisocyanates | 2.99 |
| Chlorine | 1.24 |
| Formaldehyde | 1.09 |
| Polycyclic aromatic compounds | 0.92 |
| Chloroform | 0.92 |
| Di(2-ethylhexyl) phthalate | 0.73 |
| Antimony compounds | 0.48 |
| Copper | 0.42 |
| Acrylonitrile | 0.40 |
| Xylene (mixed isomers) | 0.10 |
| Ethylbenzene | 0.09 |
| Acetonitrile | 0.09 |
| Lead | 0.09 |
| Naphthalene | 0.07 |
| Certain glycol ethers | 0.05 |
| Butyl acrylate | 0.05 |
| Lead compounds | 0.05 |
| Nitric acid | 0.05 |
| Hydrogen fluoride (Hydrofluoric acid) | 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 |
| Triethylamine | 0.04 |
| Zinc compounds | 0.03 |
| Cyanide compounds | 0.03 |
| Maleic anhydride | 0.03 |
| Dichloromethane (Methylene chloride) | 0.03 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.02 |
| Manganese | 0.01 |
| Acrylic acid | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| 1,2,4-Trimethylbenzene | 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 |
| Silver compounds | 0.01 |
| Methyl methacrylate | 0.01 |
| Styrene | 0.01 |
| Phenol | 0.00 |
| Pyridine | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Acetophenone | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Toluene | 0.00 |
| Vinyl acetate | 0.00 |
| Mercury compounds | 0.00 |
| Silver | 0.00 |
| Mercury | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Methanol | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Ethyl acrylate | 0.00 |
| Propylene oxide | 0.00 |
| Ethylene glycol | 0.00 |
| Cyclohexane | 0.00 |
| Cumene | 0.00 |
| Biphenyl | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 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-Butyl alcohol (1-Butanol) | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
