GB/T 4854.9-2016
ActiveAcoustics—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
Application Summary AI generated
This standard specifies the preferred test conditions for determining reference hearing threshold levels, ensuring consistent calibration of audiometric equipment across different testing environments. It is applied in audiology clinics, hearing aid fitting centers, and occupational hearing conservation programs to standardize pure-tone air conduction threshold measurements. The standard is critical for metrology laboratories and manufacturers calibrating audiometers used in hearing loss diagnosis and noise-induced hearing damage assessments.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.