IEC 60118-4:1981/AMD1:1998
(Amendment)Amendment 1 - Hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
General Information
- Abstract
Specifies the method which is essentially the same as that described in CISPR publication 11, sub-clause 5.2.2. With this method, emphasis has been laid on simplicity and reproducibility, rather than on rigorous scientific method. lt has been purposely developed for use in an ordinary laboratory room to avoid the use of an expensive anechoic room. The method is intended for type tests but it may be used for acceptance tests and factory tests. The standard should be used in conjunction with IEC 60244-6.
- Status
- Published
- Publication Date
- 04-Jun-1998
- Technical Committee
- TC 29 - Electroacoustics
- Drafting Committee
- WG 13 - TC 29/WG 13
- Current Stage
- DELPUB - Deleted Publication
- Start Date
- 27-Oct-2006
- Completion Date
- 28-Aug-2026
Relations
- Effective Date
- 05-Sep-2023
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Frequently Asked Questions
IEC 60118-4:1981/AMD1:1998 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Amendment 1 - Hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes". This standard covers: Specifies the method which is essentially the same as that described in CISPR publication 11, sub-clause 5.2.2. With this method, emphasis has been laid on simplicity and reproducibility, rather than on rigorous scientific method. lt has been purposely developed for use in an ordinary laboratory room to avoid the use of an expensive anechoic room. The method is intended for type tests but it may be used for acceptance tests and factory tests. The standard should be used in conjunction with IEC 60244-6.
Specifies the method which is essentially the same as that described in CISPR publication 11, sub-clause 5.2.2. With this method, emphasis has been laid on simplicity and reproducibility, rather than on rigorous scientific method. lt has been purposely developed for use in an ordinary laboratory room to avoid the use of an expensive anechoic room. The method is intended for type tests but it may be used for acceptance tests and factory tests. The standard should be used in conjunction with IEC 60244-6.
IEC 60118-4:1981/AMD1:1998 is classified under the following ICS (International Classification for Standards) categories: 17.140.50 - Electroacoustics; 33.060.20 - Receiving and transmitting equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC 60118-4:1981/AMD1:1998 has the following relationships with other standards: It is inter standard links to IEC 60118-4:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
IEC 60118-4:1981/AMD1:1998 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
NORME CEI
INTERNATIONALE
IEC
60118-4
INTERNATIONAL
STANDARD
AMENDEMENT 1
AMENDMENT 1
1998-06
Amendement 1
Appareils de correction auditive –
Partie 4:
Intensité du champ magnétique dans les boucles
d’induction audiofréquences utilisées à des fins de
correction auditive
Amendment 1
Hearing aids –
Part 4:
Magnetic field strength in audio-frequency induction
loops for hearing aid purposes
IEC 1998 Droits de reproduction réservés Copyright - all rights reserved
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Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
B
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue
– 2 – 60118-4 amend.1© CEI:1998
AVANT-PROPOS
Le présent amendement a été préparé par le comité d'études 29 de la CEI: Electroacoustique.
Le texte de cet amendement est issu des documents suivants:
FDIS Rapport de vote
29/401/FDIS 29/411/RVD
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant
abouti à l'approbation de cet amendement.
___________
Page 8
5 Perturbations
Remplacer le texte de cet article par le suivant:
5.1 Perturbations causées à d'autres matériels
Des perturbations peuvent se produire sur les installations de télécommunication ou dans les
câbles qui sont situés au voisinage immédiat de la boucle d'induction, spécialement lorsque la
boucle couvre une grande surface. Des mesures particulières peuvent être nécessaires pour
limiter ces perturbations à un niveau acceptable.
5.2 Bruit de fond magnétique dû à des champs audiofréquences de l'environnement
Le système de boucle d'induction instal
...