This British Standard contains minimum performance requirements for the manufacture of full face mask assemblies intended for use by aircraft flight personnel whilst dispelling the source of atmospheric contamination during flight. The mask assemblies are suitable for use with respirable air or oxygen supplied by demand, continuous flow or re-breathing systems.
BS N 4-1974由英国标准学会 GB-BSI 发布于 1974-02-28,并于 1974-02-28 实施。
BS N 4-1974 在中国标准分类中归属于: V44 生命保障系统与设备,在国际标准分类中归属于: 13.340.30 呼吸保护装置,49.090 机上设备和仪器。
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