
Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation (ISO 4869-1:2018)
出版:Standardiserings-Kommissionen I Sverige

专家解读视频
This document specifies a subjective method for measuring sound attenuation of hearing protectors at the threshold of hearing.
EN ISO 4869-1:2018 - Identical
ISO 4869-1:2018 - Identical
ISO 4869-1:2018 - Identical
EN-ISO 4869-1: 2018 - Identical