IEC 60645-1:2017 ed4.0 (2017-03) RLV

Scope

IEC 60645-1:2017 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

IEC 60645-1:2017 specifies general requirements for audiometers designed for use in determining hearing threshold levels, relative to standard reference threshold levels established by means of psychoacoustic test methods, and those designed to perform psychoacoustic tests using speech material.
The object of this standard is to ensure:
a) that tests of hearing in the frequency range 125 Hz to 16 kHz on a given human ear, performed with different pure-tone audiometers which comply with this standard, give substantially the same results;
b) that the results obtained represent a valid comparison between the hearing of the ear tested and the reference threshold of hearing;
c) that a means of presenting speech material to a subject in a standardized manner is provided. This will ensure that tests of hearing using a specific speech signal and a specific manner of signal presentation, when performed with different audiometers which comply with this standard, give substantially the same results;
d) that audiometers are classified according to the range of test signals they present, according to the mode of operation or according to their presumed primary application.
This fourth edition cancels and replaces the third edition, published in 2012, and the first edition IEC 60645-2, published in 1993. This edition constitutes a technical revision.
This edition now includes the requirements for both pure-tone (prior edition of IEC 60645-1) and speech audiometers (prior edition of IEC 60645-2) into a single document. The technical requirements in this edition remain similar to the intent of the prior two documents, but now eliminate technical and editorial contradictions caused by two separate standards with different review cycles applying to an audiometer.

Relationships

Normative references

IEC 60268–17 Sound system equipment – Part 17: Standard volume indicators
IEC 60268–3 Sound system equipment – Part 3: Amplifiers
IEC 60268–7 Sound system equipment – Part 7: Headphones and earphones

IEC 60268–17 Sound system equipment – Part 17: Standard volume indicators
IEC 60268–3 Sound system equipment – Part 3: Amplifiers
IEC 60268–7 Sound system equipment – Part 7: Headphones and earphones
IEC 60318–1 Electroacoustics – Simulators of human head and ear – part 1: Ear simulator for the measurement of supra-aural and circumaural earphones
IEC 60318–3 Electroacoustics – Simulators of human head and ear – Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry
IEC 60318–4 Electroacoustics – Simulators of human head and ear – Part 4: Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts
IEC 60318–5 Electroacoustics – Simulators of human head and ear – Part 5: 2 cm³ coupler for the measurement of hearing aids and earphones coupled to the ear by means of ear inserts
IEC 60318–6 Electroacoustics – Simulators of human head and ear – Part 6: Mechanical coupler for the measurement of bone vibrators
IEC 60601–1 Medical electrical equipment – part 1: General requirements for basic safety and essential performance
IEC 60601–1–2 Medical electrical equipment – Part 1–2: General requirements for basic safety and essential performance – Collateral standard: Electromagnetic
IEC 60645–2 Audiometers – Part 2: Equipment for speech audiometry
IEC 61260–2 Electroacoustics – Octave-band and fractional-octave-band filters – part 1: Specifications
IEC 61672–1 Electroacoustics – Sound level meters – part 1: Specifications
ISO 266 Acoustics – Preferred frequencies
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
ISO 389–2 Acoustics – Reference zero for the calibration of audiometric equipment – Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones
ISO 389–3 Acoustics – Reference zero for the calibration of audiometric equipment – Part 3: Reference equivalent threshold force levels for pure tones and bone vibrators
ISO 389–4:1994 Acoustics – Reference zero for the calibration of audiometric equipment – Part 4: Reference levels for narrow-band masking noise
ISO 389–5 Acoustics – Reference zero for the calibration of audiometric equipment – Part 5: Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz
ISO 389–7 Acoustics – Reference zero for the calibration of audiometric equipment – Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions
ISO 389–8 Acoustics – Reference zero for the calibration of audiometric equipment – Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones
ISO 4869–1 Acoustics – Hearing protectors – part 1: Subjective method for the measurement of sound attenuation
ISO 8253–1:2010 Acoustics – Audiometric test methods – part 1: Pure-tone air and bone conduction audiometry
ISO 8253–2 Acoustics – Audiometric test methods – Part 2: Sound field audiometry with pure- tone and narrow-band test signals
ISO 8253–3 Acoustics – Audiometric test methods – Part 3: Speech audiometry

Technical committee

Date of implementation

14.03.2017

Published

14.03.2017

Edition

4.0

Pages

133

Language(s)

English