NEN EN 50849:2014被替代
Sound Systems For Emergency Purposes
出版：Nederlands Normalisatie Instituut
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基本信息
标准编号： NEN EN 50849:2014
发布时间：2014/8/1 0:00:00
标准类别：Draft
出版单位：Nederlands Normalisatie Instituut
标准页数：25
标准简介
Defines the performance requirements for sound systems which are primarily intended to broadcast information for the protection of lives within one or more specified areas in an emergency. Also provides the characteristics and the methods of test necessary for the specification of the system.
本标准替代的旧标准
替代本标准的新标准
等同采用的国际标准
PREN 50849:2014 - Identical
