AS/NZS ISO 389.3:2019
Acoustics - Reference zero for the calibration of audiometric equipment - Part 3: Reference equivalent threshold vibratory force levels for pure tones and bone vibrators
Specifies the following data applicable to the calibration of bone vibrators for pure-tone bone-conduction audiometry: (a) reference equivalent threshold vibratory force levels (RETVFL), corresponding to the threshold of hearing of young otologically normal persons by bone-conduction audiometry; (b) essential characteristics of the bone vibrator and the method of coupling to the test subject, and to the mechanical coupler; and (c) essential characteristics of the masking noise and the baseline masking noise level applied to the ear not under test. Guidance on the practical application of this Standard in the calibration of audiometers is given in Annex B. Identical with and reproduced from ISO 389-3:2016.
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References
Related Information
Similar Standards
- AS/NZS 1591.1:1995
Instrumentation for audiometry - Reference zero for the calibration of pure-tone bone conduction audiometers
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- AS/NZS ISO 389.1:2019
Acoustics - Reference zero for the calibration of audiometric equipment - Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones