AS/NZS ISO 389.1:2019
Current
The latest, up-to-date edition.
Acoustics - Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
English
25-02-2019
Important note : Users cannot be edited or removed once added to your Multi user PDF.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.
| Committee |
AV-003
|
| DocumentType |
Standard
|
| ISBN |
978 1 76072 373 6
|
| Pages |
10
|
| PublisherName |
Standards Australia
|
| Status |
Current
|
| Supersedes |
This document specifies 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.
It states the information in a form suitable for direct application to the calibration of audiometers, that is, in terms of the reference equivalent threshold sound pressure levels of generic supra-aural earphones specified in 4.2, measured on an ear simulator complying with IEC 60318-1 and in terms of model-specific data given in two additional tables for the IEC 60318-3 acoustic coupler and the IEC 60318-1 ear simulator, respectively.
The data are based on an assessment of the information available from the various standardizing laboratories responsible for audiometric standards and from scientific publications.
Some notes on the application and derivation of the reference levels are given in Annexes A and B.
| Standards | Relationship |
| ISO 389-1:2017 | Identical |
First published as AS ISO 389.1-2007.
Jointly revised and redesignated as AS/NZS ISO 389.1:2019.
| ISO 389-9:2009 | Acoustics Reference zero for the calibration of audiometric equipment Part 9: Preferred test conditions for the determination of reference hearing threshold levels |
| IEC 60318-3:2014 | Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry |
| IEC 60318-1:2009 | Electroacoustics - Simulators of human head and ear - Part 1: Ear simulator for the measurement of supra-aural and circumaural earphones |
| ISO 7029:2017 | Acoustics — Statistical distribution of hearing thresholds related to age and gender |
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