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AS 1088.4-1987

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Hearing aids - Magnetic field strength in audio-frequency induction loops for hearing aid purposes
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

30-06-2017

Language(s)

English

Published date

01-01-1987

Publisher

Standards Australia

1 - AS 1088.4-1987 HEARING AIDS - MAGNETIC FIELD STRENGTH IN AUDIO-FREQUENCY INDUCTION LOOPS FOR HEARING AID PURPOSES
4 - PREFACE
4 - CONTENTS
6 - 1. Scope
6 - 2. Object
6 - 3. Explanation of terms
6 - 3.1 Recommended average value for magnetic field strength
6 - 3.2 Maximum magnetic field strength
6 - 3.3 Specified magnetic field area
6 - 3.4 Specified vector component of the magnetic field strength
7 - 3.5 Specified frequency response of the magnetic field
7 - 4. Recommended magnetic field strength
7 - 4.1 Recommended average value for magnetic field strength in the specified magnetic field area
7 - 4.2 Recommended frequency response of the magnetic field
7 - 5. Interference

Specifies a standard value of magnetic field strength in audio-frequency induction loops for hearing aid purposes, in order to give an adequate signal-to-noise ratio without overloading the hearing aid. Technically identical with IEC Publication 118-4.

This standard applies to audio-frequency induction loop systems producing an alternating magnetic field and intended to provide an input signal for hearing aids operating with an induction pick-up coil.

Committee
AV-003
DocumentType
Standard
ISBN
0 7262 4501 1
Pages
2
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes
UnderRevision

Standards Relationship
IEC 60118-4:1981 Identical
IEC 60118-4:2006 Identical

AS 2220.2-1989 Emergency warning and intercommunication systems in buildings - System design, installation and commissioning
AS 1428.2-1992 Design for access and mobility Enhanced and additional requirements - Buildings and facilities (Reconfirmed 2015)

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Hardcopy - English
PDF 1 User - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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