ISO 4869-1:1990 声学.听力保护器.第1部分：声衰减的主观测量法

标准编号：ISO 4869-1:1990

中文名称：声学.听力保护器.第1部分：声衰减的主观测量法

英文名称：Acoustics — Hearing protectors — Part 1: Subjective method for the measurement of sound attenuation

发布日期：1990-12

标准范围

指定在听力阈值下测量声音衰减的方法。该程序旨在产生接近最大衰减的值，而在现场条件下通常无法达到最大衰减。这些值仅在用户以与受试者相同的方式佩戴设备的情况下反映衰减特性。数据是在低声压级下收集的，但也代表了较高声压级下的数值。

Specifies a method for measuring sound attenuation at the threshold of hearing. The procedure is designed to yield values close to the maximum attenuation which are not normally attained under field conditions. The values reflect the attenuating characteristics only to the extent that users wear the device in the same manner as did the test subjects. Data are collected at low sound pressure levels but which are also representative of the values at higher sound pressure levels.

标准预览图