CEI UNI EN 45544-2:2015 工作场所大气 用于直接检测和直接测量有毒气体和蒸气浓度的电气设备 第2部分:用于暴露管理的设备的性能要求
Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours Part 2: Performance requirements for apparatus used for exposure management