
Specification for filtering half masks to protect against particles
出版:British Standards Institution

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基本信息
标准编号: BS EN 149:1992
发布时间:1992/2/28 0:00:00
标准类别:Standard
出版单位:British Standards Institution
标准页数:28
标准简介
Provides performance and marking requirements and test methods for filtering half masks for protection of the respiratory tract against particles.
标准备注
© British Standards Institution 2013
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