声学 护听器 第1部分:声衰减测量的主观方法
Acoustics—Hearing protectors—Part 1: Subjective method for the measurement of sound attenuation
标准状态
发布于:2026-02-27
实施于:2026-09-01
废止
Acoustics—Hearing protectors—Part 1: Subjective method for the measurement of sound attenuation