EN 1827:1999 呼吸保护装置.防气体或气体和微粒或只防微粒的无吸气阀和带分离式过滤器的半面罩.要求,试验和标记.包含修改件A1-2009
Respiratory protective devices - Half masks without inhalation valves and with separable filters to protect against gases or gases and particles or particles only - Requirements, testing, marking (Incorporates Amendment A1: 2009)