ISO 4869-1-2018 标准详情
- 标准号:ISO 4869-1-2018
- 中文标题:
- 英文标题:Acoustics -- Hearing protectors -- Part 1: Subjective method for the measurement of sound attenuation
- 标准类别:国际标准化组织ISO
- 发布日期:
This document specifies a subjective method for measuring sound attenuation of hearing protectors at the threshold of hearing. The method is a laboratory method designed to yield reproducible values under controlled measurement conditions. The values
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