IEC 60645-4:1994
听力计 第4部分:高频声学设备
Audiometers - Part 4: Equipment for extended high-frequency audiometry
- 标准号
- IEC 60645-4:1994
- 发布
- 1994年
- 发布单位
- 国际电工委员会
- 当前最新
- IEC 60645-4:1994
- 代替标准
- IEC 60645-1:2012
- 适用范围
- Specifies requirements for audiometric equipment designed for use in pure tone audiometry in the frequency range from 8 000 Hz to 16 000 Hz, in addition to those that are applicable and specified in IEC 645-1. Ensures that extended high-frequency audiome