声学 校准测听设备的基准零级 第7部分：自由场与扩散场测听的基准听阈
Acoustics--Reference zero for the calibration of audiometric equipment--Part 7:Reference threshold of hearing under free-field and diffuse-field listening conditions
标准状态
发布于：1999-03-08
实施于：1999-09-01
已废止
基本信息
内容预览
Acoustics--Reference zero for the calibration of audiometric equipment--Part 7:Reference threshold of hearing under free-field and diffuse-field listening conditions