DIN EN 50291-1:2013
住宅楼宇内一氧化碳探测用电气设备.第1部分:试验方法和性能要求.德文版本EN 50291-1-2010+A1-2012
Electrical apparatus for the detection of carbon monoxide in domestic premises - Part 1: Test methods and performance requirements; German version EN 50291-1:2010 + A1:2012