| Ethylene oxide | 163.85 |
| 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.) | 89.67 |
| Chromium | 54.13 |
| Nickel | 11.58 |
| Maleic anhydride | 3.89 |
| Cadmium compounds | 3.30 |
| Diisocyanates | 2.62 |
| Lead | 1.92 |
| Nitric acid | 1.90 |
| Dicyclopentadiene | 1.69 |
| Antimony compounds | 1.64 |
| Acrylonitrile | 0.43 |
| Toluene diisocyanate (mixed isomers) | 0.34 |
| Peracetic acid | 0.34 |
| Chlorine | 0.21 |
| Di(2-ethylhexyl) phthalate | 0.20 |
| Zinc compounds | 0.14 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.10 |
| Polycyclic aromatic compounds | 0.08 |
| Dichloromethane (Methylene chloride) | 0.08 |
| Formaldehyde | 0.08 |
| Nickel compounds | 0.05 |
| Phenol | 0.04 |
| Lead compounds | 0.03 |
| Butyl acrylate | 0.03 |
| 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) | 0.03 |
| Acetonitrile | 0.02 |
| Pyridine | 0.01 |
| Phthalic anhydride | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| Hydrogen cyanide | 0.01 |
| Copper | 0.01 |
| Methyl tert-butyl ether | 0.01 |
| Cyanide compounds | 0.01 |
| Ethylene glycol | 0.00 |
| Xylene (mixed isomers) | 0.00 |
| Styrene | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 0.00 |
| Methanol | 0.00 |
| Certain glycol ethers | 0.00 |
| o-Xylene | 0.00 |
| Vinyl acetate | 0.00 |
| Acrylic acid | 0.00 |
| Acetophenone | 0.00 |
| Toluene | 0.00 |
| Ethyl acrylate | 0.00 |
| Silver compounds | 0.00 |
| Methyl methacrylate | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Mercury | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Formic acid | 0.00 |
| Silver | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| N,N-Dimethylformamide | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| Lithium carbonate | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| MIXTURE | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
