BS 4667-4:1989
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Breathing apparatus Specification for open-circuit escape breathing apparatus
Hardcopy , PDF
15-07-1997
English
31-12-1989
Design, construction and performance of two types of escape breathing apparatus using compressed air.
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