DS/EN ISO 389-7:2019现行
Acoustics – Reference zero for the calibration of audiometric equipment – Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions (ISO 389-7:2019)
出版：Danish Standards
专家解读视频
基本信息
标准编号： DS/EN ISO 389-7:2019
标准类别：Standard
出版单位：Danish Standards
标准页数：0
标准简介
This document specifies a reference threshold of hearing for the calibration of audiometric equipment used under the following conditions.
本标准替代的旧标准
等同采用的国际标准
EN ISO 389-7:2019 - Identical
ISO 389-7:2019 - Identical
EN ISO 389-7:2019 - Identical
ISO 389-7:2019 - Identical
