NBN EN 12942 : 1999 AMD 2 2009现行
RESPIRATORY PROTECTIVE DEVICES - POWER ASSISTED FILTERING DEVICES INCORPORATING FULL FACE MASKS, HALF MASKS OR QUARTER MASKS - REQUIREMENTS, TESTING, MARKING
出版：Belgian Standards
专家解读视频
基本信息
标准编号： NBN EN 12942 : 1999 AMD 2 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 power assisted respiratory protective devices incorporating a full face mask, half mask or quarter mask, with gas, particle or combined filter(s) used as respiratory protective devices.
