BS EN 45544-3-2000 工作场所空气.有毒气体和蒸气的直接检测和直接富集测量用电气设施.大大超过极限值的浓度测量用设备性能要求

       This European Standard specifies the performance requirements for electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours in workplace atmospheres. The standard test gas concentrations (STGC) used for the tests are given in 5.6 of EN 45544-1:1999.