
Respiratory protective devices. Valved filtering half masks to protect against gases or gases and particles
出版:British Standards Institution

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基本信息
標準編號: BS EN 405:1993
發布時間:1993/2/15 0:00:00
標準類別:Standard
出版單位:British Standards Institution
標準頁數:28
標準簡介
Provides performance requirements, test methods and marking requirements for valved filtering half masks incorporating either gas or combined gas and particle filters.
標準備注
? British Standards Institution 2013
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