EN 24869-1-1992 标准详情
- 标准号:EN 24869-1-1992
- 中文标题:声学 护听器 第1部分:声衰减测量的主观法
- 英文标题:Acoustics; hearing protectors; subjective method for the measurement of sound attentuation (ISO 4869-1:1990)
- 标准类别:欧盟标准EN
- 发布日期:1992/10/01
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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