PREN 54-12 : DRAFT 2009被替代
FIRE DETECTION AND FIRE ALARM SYSTEMS - PART 12: SMOKE DETECTORS - LINE DETECTORS USING AN OPTICAL BEAM
出版：Comite Europeen de Normalisation
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基本信息
标准编号： PREN 54-12 : DRAFT 2009
标准类别：Draft
出版单位：Comite Europeen de Normalisation
标准页数：0
标准简介
Describes requirements, test methods and performance criteria for line smoke detectors utilising the attenuation and/or changes in attenuation of an optical beam, for use in fire detection systems installed in buildings.
替代本标准的新标准
