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About This Item

 

Full Description

The objective of this Standard is to specify a standard reference zero for the scale of hearing threshold level applicable to pure-tone air conduction audiometers, to promote agreement and uniformity in the expression of hearing threshold level measurements throughout the world.
 

Document History

  1. AS/NZS ISO 389.1:2019

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    Acoustics - Reference zero for the calibration of audiometric equipment, Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones

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  2. AS ISO 389.1-2007


    Acoustics - Reference zero for the calibration of audiometric equipment, Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones

    • Historical Version