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

Published by	Publication Date	Number of Pages
AS/NZS	02/25/2019	10

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Category: AS-NZS

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AS/NZS ISO 389.1 – Acoustics – Reference zero for the calibration of audiometric equipment, Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones

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.