IEC 60118-13:2019
(Main)Electroacoustics - Hearing aids - Part 13: Requirements and methods of measurement for electromagnetic immunity to mobile digital wireless devices
Electroacoustics - Hearing aids - Part 13: Requirements and methods of measurement for electromagnetic immunity to mobile digital wireless devices
IEC 60118-13:2019 covers the relevant EMC phenomena for hearing aids. Hearing aid immunity to high frequency fields originating from digital wireless devices such as mobile phones was identified as one of the most relevant EMC phenomena impacting hearing aids.
IEC 60118-13:2019 cancels and replaces the fourth edition published in 2016 and constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) it introduces a new measurement method and set of EMC requirements for hearing aids immunity to mobile digital wireless devices;
b) generic EMC requirements for hearing aids are no longer included – should be covered by other standards as appropriate.
Electroacoustique - Appareils de correction auditive - Partie 13: Exigences et méthodes de mesure de l'immunité électromagnétique aux appareils numériques mobiles sans fil
L'IEC 60118-13:2019 s'applique aux phénomènes de compatibilité électromagnétique (CEM) concernant les appareils de correction auditive. L'immunité des appareils de correction auditive aux champs de haute fréquence produits par les appareils numériques sans fil tels que les téléphones mobiles a été identifiée comme l'un des phénomènes de CEM les plus pertinents ayant un impact sur les appareils de correction auditive.
L'IEC 60118-13:2019 annule et remplace la quatrième édition parue en 2016, dont elle constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) elle introduit une nouvelle méthode de mesure et un ensemble d'exigences de CEM relatives à l'immunité des appareils de correction auditive aux appareils numériques mobiles sans fil;
b) les exigences générales CEM pour les appareils de correction auditive ne sont plus incluses (il convient qu'elles soient couvertes par d'autres normes, selon le cas.
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Standards Content (Sample)
IEC 60118-13 ®
Edition 5.0 2019-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electroacoustics – Hearing aids –
Part 13: Requirements and methods of measurement for electromagnetic
immunity to mobile digital wireless devices
Électroacoustique – Appareils de correction auditive–
Partie 13: Exigences et méthodes de mesure de l'immunité électromagnétique
aux appareils numériques mobiles sans fil
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IEC 60118-13 ®
Edition 5.0 2019-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electroacoustics – Hearing aids –
Part 13: Requirements and methods of measurement for electromagnetic
immunity to mobile digital wireless devices
Électroacoustique – Appareils de correction auditive–
Partie 13: Exigences et méthodes de mesure de l'immunité électromagnétique
aux appareils numériques mobiles sans fil
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.140.50; 33.100.20 ISBN 978-2-8322-7330-2
– 2 – IEC 60118-13:2019 © IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Operation and function of the hearing aid . 8
5 Requirements for electromagnetic immunity. 8
5.1 General . 8
5.2 Compliance criteria . 9
6 Test procedures for immunity to radiated RF electromagnetic fields . 11
6.1 General . 11
6.2 Test setup . 11
6.3 Hearing aid test setting . 11
6.4 Determination of gain . 12
6.5 Measurement of the input related ambient noise (IRAN) . 12
6.6 Hearing aid output coupling during immunity test . 13
6.7 Position of the hearing aid during immunity test . 13
6.8 Measurement of the output related interference level (ORIL) . 14
6.9 Calculation of the input related interference level (IRIL) . 15
6.10 Report. 15
7 Measurement uncertainty for immunity to radiated RF electromagnetic fields . 16
Annex A (informative) Background for establishing test methods, performance criteria
and test levels . 17
A.1 General . 17
A.2 Radiated RF electromagnetic fields – History of the test method . 17
A.3 Performance criteria . 19
A.4 Test field strengths – Bystander compatibility . 19
A.5 Test field strengths – User compatibility . 20
Bibliography . 21
Figure 1 – Example of a test arrangement for hearing aid immunity measurements
using a GTEM cell . 11
Figure 2 – Examples of input-output response curves at 1 kHz and the determination
of gain at an input SPL of 55 dB . 12
Figure 3 – Hearing aid test positions for BTE (upper) and ITE (lower) . 14
Figure A.1 – Ratio of 1:2 between field strength and interference level in dB . 18
Figure A.2 – Example of test arrangement for hearing aid immunity measurements
using dipole antenna . 20
Table 1 – Field strengths of RF test signals to be used to establish immunity for
bystander compatible and user compatible hearing aids . 10
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROACOUSTICS –
HEARING AIDS –
Part 13: Requirements and methods of measurement
for electromagnetic immunity to mobile digital wireless devices
FOREWORD
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International Standard IEC 60118-13 has been prepared by IEC technical committee 29:
Electroacoustics.
This fifth edition cancels and replaces the fourth edition published in 2016 and constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) it introduces a new measurement method and set of EMC requirements for hearing aids
immunity to mobile digital
...
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