DIN EN ISO 389-8:2004
声学.校准听力设备的基准零级.第8部分:纯音和环绕式耳机的基准等效阈声压级
Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones (ISO 389-8:2004); German version EN ISO 389-8:2004
- 标准号
- DIN EN ISO 389-8:2004
- 发布
- 2004年
- 发布单位
- 德国标准化学会
- 当前最新
- DIN EN ISO 389-8:2004
- 被代替标准
- DIN ISO 389-8:2001
- 适用范围
- This part of ISO 389 specifies reference equivalent threshold sound pressure levels (RETSPLs) for pure tonesin the frequency range from 125 Hz to 8 kHz, applicable to the calibration of air conduction audiometersequipped with a particular model of circumaural earphones (SENNHEISER HDA 200).The sound attenuation of the earphone is given in Annex B. For speech audiometers of types A-E and B-E(see IEC 60645-2), the correction figures of the earphone for a free-field equivalent output are given inAnnex C.