GB/T 4854.7-1999
AbolishedAcoustics--Reference zero for the calibration of audiometric equipment--Part 7:Reference threshold of hearing under free-field and diffuse-field listening conditions
声学 校准测听设备的基准零级 第7部分:自由场与扩散场测听的基准听阈
Application Summary AI generated
This standard specifies the reference hearing threshold levels for pure tones under free-field and diffuse-field listening conditions. It is used to calibrate audiometric equipment, such as audiometers and ear simulators, ensuring consistent and accurate hearing tests in clinical audiology and occupational noise exposure assessments.
Related Standards
GB/T 4854.1-2004
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GB/T 4854.4-1999
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GB/T 14366-1993
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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.