| 530 / | HD | CHEMISTRY: NATURAL RESINS OR DERIVATIVES; PEPTIDES OR PROTEINS; LIGNINS OR REACTION PRODUCTS THEREOF |
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| 200 | DF | NATURAL RESINS OR DERIVATIVES (E.G., WOOD OR PINE TAR; CATIVO RESIN DERIVATIVES, ETC.) {6} |
| 205 | DF | .~ Recovery of tall oil or derivatives from papermaking waste, purification of tall oil, or separation of components of tall oil; or product thereof (e.g., separation of rosin, fatty acids, sterols, etc.; decolorizing, etc.) {3} |
| 208 |  | .~.~ Inorganic material used in the process, or product thereof (e.g., using sulfuric acid, boric acid, etc.) {1} |
| 209 | DF | .~.~.~> Phosphorus or heavy metal containing material, elemental hydrogen, sulfur dioxide, or carbon dioxide used in the process, or product thereof |