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【范围】
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This European Standard specifies minimum requirements for compressed air line breathing apparatus with demand valve for use with a half mask at positive pressure, as a respiratory protective device. Escape and diving apparatus, apparatus for fire fighting and apparatus used in abrasive blasting operations without additional protective features are not covered byThis European Standard, although certain requirements addressingThe use in conjunction with escape apparatus and escape conditions are noted. Laboratory and practical performance tests are included forThe assessment of conformance toThe requirements.
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