DIN EN 50545-1:2012 在停车场和隧道中的有毒气体和可燃气体的检测和测量用电气设备.第1部分:一氧化碳和氧化氮的检测和测量的一般性能要求和试验方法.德文版本
Electrical apparatus for the detection and measurement of toxic and combustible gases in car parks and tunnels - Part 1: General performance requirements and test methods for the detection and measurement of carbon monoxide and nitrogen oxides; German ver