标准号:ANSI/ASA S3.22a-2009
中文标准名称:助听器特性的规范
英文标准名称:Specification of Hearing Aid Characteristics
标准类型:L31
发布日期:1999/12/31 12:00:00
实施日期:1999/12/31 12:00:00
中国标准分类号:L31
国际标准分类号:11.180.15
适用范围:Describes air-conduction hearing-aid measurement methods that are particularly suitable for specification & tolerance purposes. Test methods described are output sound pressure level (SPL) with 90-dB input SPL, full-on gain, frequency response, harmonic distortion, equivalent input noise, current drain & induction-coil sensitivity. Specific configurations are given for measuring input SPL to hearing aid. Allowable tolerances in relation to values specified by the mfr are given for certain parameters.