ONORM EN 24869-1-1993 标准详情
- 标准号:ONORM EN 24869-1-1993
- 中文标题:声学 - 听力保护 - 主观测量方法声音衰减
- 英文标题:Acoustics - Hearing Protectors - Subjective Method For Measurement Of Sound Attenuation
- 标准类别:奥地利国家标准ONORM
- 发布日期:
Describes a method for measuring sound attenuation of hearing protectors at the threshold of hearing, to yield values close to the maximum attenuation which are not normally attained under field conditions. This has been adopted because the attenuati
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