| Chromium | 421.90 |
| Ethylene oxide | 183.71 |
| 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.) | 106.58 |
| Nickel | 42.20 |
| Maleic anhydride | 5.53 |
| Dicyclopentadiene | 2.94 |
| Diisocyanates | 1.53 |
| Antimony compounds | 1.32 |
| Acrylonitrile | 0.63 |
| Peracetic acid | 0.51 |
| Di(2-ethylhexyl) phthalate | 0.18 |
| Lead compounds | 0.13 |
| Phenol | 0.10 |
| Polycyclic aromatic compounds | 0.09 |
| 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) | 0.08 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.07 |
| Butyl acrylate | 0.05 |
| Dichloromethane (Methylene chloride) | 0.04 |
| Formaldehyde | 0.04 |
| Nickel compounds | 0.04 |
| Nitric acid | 0.03 |
| Lead | 0.03 |
| Phthalic anhydride | 0.02 |
| Ethylene glycol | 0.02 |
| Acetonitrile | 0.02 |
| Xylene (mixed isomers) | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| Pyridine | 0.01 |
| Zinc compounds | 0.01 |
| Styrene | 0.01 |
| Methyl tert-butyl ether | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Chlorine | 0.00 |
| Copper | 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 |
| Acrylic acid | 0.00 |
| o-Xylene | 0.00 |
| Methanol | 0.00 |
| Certain glycol ethers | 0.00 |
| Ethyl acrylate | 0.00 |
| Vinyl acetate | 0.00 |
| Methyl methacrylate | 0.00 |
| Toluene | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Acetophenone | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Mercury | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Silver | 0.00 |
| N,N-Dimethylformamide | 0.00 |
| Formic acid | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Cyanide compounds | 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 |
