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| SECTION A– HUMAN NECESSITIES |
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| A 62 | LIFE-SAVING; FIRE-FIGHTING (ladders E 06 C) |
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| A 62 D | CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS |
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| Note |
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| Processes using enzymes or micro-organisms in order to: |
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| (i) | liberate, separate or purify a pre-existing compound or composition, or to |
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| (ii) | treat textiles or clean solid surfaces of materials |
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| are further classified in subclass C 12 S. [5] |
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1/ | 00 | Fire-extinguishing compositions; Use of chemical substances in extinguishing fires (fireproof paints C 09 D 5/18; fireproofing materials C 09 K 21/00) |
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1/ | 02 | . | containing or yielding a gas phase, e.g. foams (A 62 D 1/06, A 62 D 1/08 take precedence) [3] |
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1/ | 04 | . | . | characterised by the foam stabiliser [3] |
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1/ | 06 | . | containing gas-producing, chemically-reactive components [3] |
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1/ | 08 | . | containing volatile or gas-charged liquids [3] |
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3/ | 00 | Chemical means for combating harmful chemical agents; Processes for making harmful chemical agents harmless (chemical or biological purification of waste gases, e.g. smoke, fumes, flue gases, engine exhaust gases B 01 D 53/34; treatment of sewage or waste water C 02 F) |
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5/ | 00 | Composition of materials for coverings or clothing affording protection against harmful chemical agents |
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7/ | 00 | Composition of materials for transparent parts of gas-masks, respirators, breathing bags, or helmets |
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7/ | 02 | . | Clear-view sheets which prevent the formation of water drops or ice (materials for minimising adherence of ice or water to surfaces C 09 K 3/18) |
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9/ | 00 | Composition of chemical substances for use in breathing apparatus (production of oxygen-generating compounds in general, processes for the production of oxygen from chemicals in general C 01 B 13/00, C 25 B 1/02) |
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