Escape apparatus for building fire—Part 7:Filtering respiratory protective devices for self-rescue from fire
全国消防标准化技术委员会消防器具配件分技术委员会(SAC/TC 113/SC 5)
GB 21976的本部分规定了过滤式消防自救呼吸器的型式、型号、技术要求、试验方法、检验规则、标志、包装、运输、贮存等要求。
本部分适用于发生火灾时空气中氧气浓度不低于17%的场所中，供人员逃生时佩戴的一次性使用的过滤式消防自救呼吸器。
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