| Ethylene oxide | 218.28 |
| 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.) | 118.57 |
| Chromium | 76.51 |
| Nickel | 16.46 |
| Maleic anhydride | 5.69 |
| Dicyclopentadiene | 3.58 |
| Lead | 2.12 |
| Diisocyanates | 1.60 |
| Antimony compounds | 1.59 |
| Acrylonitrile | 0.66 |
| Peracetic acid | 0.53 |
| Di(2-ethylhexyl) phthalate | 0.17 |
| Zinc compounds | 0.15 |
| Polycyclic aromatic compounds | 0.13 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.07 |
| Lead compounds | 0.05 |
| Butyl acrylate | 0.05 |
| Dichloromethane (Methylene chloride) | 0.04 |
| Formaldehyde | 0.04 |
| Nickel compounds | 0.04 |
| Phenol | 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) | 0.03 |
| Nitric acid | 0.03 |
| Phthalic anhydride | 0.02 |
| Acetonitrile | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| Hydrogen cyanide | 0.01 |
| Pyridine | 0.01 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.01 |
| Ethylene glycol | 0.01 |
| Styrene | 0.01 |
| Copper | 0.01 |
| Toluene | 0.00 |
| Methyl tert-butyl ether | 0.00 |
| Xylene (mixed isomers) | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| o-Xylene | 0.00 |
| Methanol | 0.00 |
| Acrylic acid | 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 |
| Ethyl acrylate | 0.00 |
| Methyl methacrylate | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Vinyl acetate | 0.00 |
| Certain glycol ethers | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Mercury | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Silver | 0.00 |
| N,N-Dimethylformamide | 0.00 |
| Formic acid | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| Cyanide compounds | 0.00 |
| Lithium carbonate | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| MIXTURE | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
