Home / Standards / GB 2890-2009 GB 2890-2009 Abolished Respiratory protection - Non-powered air-purifying respirators 呼吸防护 自吸过滤式防毒面具 Standard Type GB ICS 13.340.30 CCS C73 Status 废止 Issue Date 2009-04-13 Implementation 2009-12-01 Responsible Dept 应急管理部 Drafting Unit 应急管理部