DIN EN ISO 389-3-1999 声学.音响设备校正零点标准.第3部分:纯音和骨传导振动器的参考等效极限力水平

标准号：DIN EN ISO 389-3-1999
中文标准名称：声学.音响设备校正零点标准.第3部分:纯音和骨传导振动器的参考等效*限力水平
英文标准名称：Acoustics - Reference zero for the calibration of audiometric equipment - Part 3: Reference equivalent threshold force levels for pure tones and bone vibrators (ISO 389-3:1994, including Technical Corrigendum 1:1995); German version EN ISO 389-3:1998
标准类型：N65
发布日期：1999/12/31 12:00:00
实施日期：1999/7/1 12:00:00
中国标准分类号：N65
国际标准分类号：13.140
适用范围：The document specifies the following data applicable to the calibration of bone vibrators for pure-tone bone conduction audiometry: a) Reference equivalent threshold force levels, corresponding to the threshold of hearing of young otologically normal persons by borne-conduction audiometry. b) Essential characteristics of the bone vibrator and of its method of coupling to a person under test and to the mechanical coupler. c) Essential characteristics and datum level of the masking noise applied to the ear not under test.#,,#