DIN EN 54-7-2006
火灾探测和火灾报警系统.第7部分:烟雾探测器.使用散射光、透射光或电离作用的定点探测器
Fire detection and fire alarm systems - Part 7: Smoke detectors - Point detectors using scattered light, transmitted light or ionization (includes Amendments A1:2002+A2:2006) English version of DIN EN 54-7:2006-09