13.340.30;49.090 标准查询与下载

BS N 5:1992 航空紧急情况用便携式安全呼吸装置规范

Specifies and classifies the design, performance and testing requirements for portable protective breathing equipment for use by crew during specified emergency conditions on board an aircraft.

Specification for crew portable protective breathing equipment for use during aircraft emergencies

BS N 4:1974 污染大气条件下使用的全面罩组件规范

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.

Specification for full face mask assemblies for use in contaminated atmospheres