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| SECTION B– PERFORMING OPERATIONS; TRANSPORTING |
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| B 27 | WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL |
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| B 27 K | PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR (applying liquids or other fluent materials to surfaces in general B 05; coating wood or similar material B 44 D) |
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1/ | 00 | Damping wood |
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1/ | 02 | . | Apparatus |
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3/ | 00 | Impregnating wood (dyeing, staining B 27 K 5/00) |
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3/ | 02 | . | Processes; Apparatus |
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3/ | 04 | . | . | Impregnating in open tanks |
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3/ | 06 | . | . | Sap stream methods |
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3/ | 08 | . | . | Impregnating by pressure |
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3/ | 10 | . | . | . | Apparatus |
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3/ | 12 | . | . | Impregnating by coating the surface of the wood with an impregnating paste |
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3/ | 14 | . | . | Bandage methods |
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3/ | 15 | . | . | Impregnating involving polymerisation [2] |
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| Note |
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| In groups B 27 K 3/16 to B 27 K 3/50, in the absence of an indication to the contrary, impregnating agents are classified in the last appropriate place. |
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3/ | 16 | . | Inorganic impregnating agents |
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3/ | 18 | . | . | Compounds of alkaline earth metals |
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3/ | 20 | . | . | Compounds of alkali metals or ammonium |
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3/ | 22 | . | . | Compounds of zinc or copper |
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3/ | 24 | . | . | Compounds of mercury |
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3/ | 26 | . | . | Compounds of iron, aluminium, or chromium |
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3/ | 28 | . | . | Compounds of arsenic or antimony |
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3/ | 30 | . | . | Compounds of fluorine |
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3/ | 32 | . | . | Mixtures of different inorganic impregnating agents |
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3/ | 34 | . | Organic impregnating agents |
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3/ | 36 | . | . | Aliphatic compounds |
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3/ | 38 | . | . | Aromatic compounds |
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3/ | 40 | . | . | . | halogenated |
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3/ | 42 | . | . | . | nitrated, or nitrated and halogenated |
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3/ | 44 | . | . | Tar; Mineral oil |
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3/ | 46 | . | . | . | Coal tar |
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3/ | 48 | . | . | . | Mineral oil |
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3/ | 50 | . | . | Mixtures of different organic impregnating agents |
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3/ | 52 | . | Impregnating agents containing mixtures of inorganic and organic compounds |
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5/ | 00 | Treating of wood not provided for in groups B 27 K 1/00, B 27 K 3/00 |
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5/ | 02 | . | Staining or dyeing wood; Bleaching wood (bleaching wood pulp D 21 C 9/10) |
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5/ | 04 | . | Combined bleaching or impregnating and drying of wood |
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5/ | 06 | . | Softening or hardening wood |
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7/ | 00 | Chemical or physical treatment of cork (mechanical working of cork B 27 J 5/00) |
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9/ | 00 | Chemical or physical treatment of reed, straw, or similar material (mechanical working of cane or the like B 27 J 1/00) |
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