GB/T 4854.9-2016

Active

Acoustics—Reference zero for the calibration of audiometric equipment—Part 9: Preferred test conditions for the determination of reference hearing threshold levels

声学校准测听设备的基准零级第9部分：确定基准听阈级的优选测试条件

Standard Type

GBT

ICS

17.140

CCS

A59

Status

现行

Issue Date

2016-02-24

Implementation

2016-09-01

Responsible Dept

中国科学院

Drafting Unit

N/A