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Specification for full face mask assemblies for use in contaminated atmospheres.
STANDARD published on 28.2.1974
Designation standards: BS N 4:1974
Note: WITHDRAWN
Publication date standards: 28.2.1974
SKU: NS-115897
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: British technical standard
Category: Technical standards BS
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