This European Standard specifies requirements, test methods and performance criteria for line smoke detectorsutilisingThe attenuation and/or changes in attenuation of an optical beam, for use in fire detection systems installedin buildings.
EN 54-12:2002 history
2015EN 54-12:2015 Fire detection and fire alarm systems - Part 12: Smoke detectors - Line detectors using an optical beam
2002EN 54-12:2002 Fire detection and fire alarm systems - Part 12: Smoke detectors - Line detectors using an optical light beam