NBN EN 149 : 2001 + A1 2009现行
RESPIRATORY PROTECTIVE DEVICES - FILTERING HALF MASKS TO PROTECT AGAINST PARTICLES - REQUIREMENTS, TESTING, MARKING
出版：Belgian Standards
专家解读视频
基本信息
标准编号： NBN EN 149 : 2001 + A1 2009
标准类别：Standard
出版单位：Belgian Standards
标准页数：0
标准简介
Defines minimum requirements for filtering half masks as respiratory protective devices against particles except for escape purposes. Includes laboratory and practical performance tests in order to assess compliance with the requirements.
