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BS EN 60118-4:2006

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Electroacoustics. Hearing aids Induction loop systems for hearing aid purposes. Magnetic field strength
Available format(s)

Hardcopy , PDF

Superseded date

04-30-2018

Language(s)

English

Published date

01-31-2007

Publisher

British Standards Institution

INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 Using components of a sound system in an induction-loop
   system
6 Meters and test signals
7 Magnetic background noise level of the installation site
8 Characteristics to be specified, methods of measurement
   and requirements
9 Small-volume systems
10 Setting up (commissioning) the system
Annex A (informative) - Systems for small useful magnetic
        field volumes
Annex B (informative) - Measuring equipment
Annex C (informative) - Provision of information
Annex D (informative) - Measuring speech signals
Annex E (informative) - Basic theory and practice of audio-frequency
        induction-loop systems
Annex F (informative) - Effects of metal in the building structure
        on the magnetic field
Annex G (informative) - Calibration of field-strength meters
Annex H (informative) - Effect of the aspect ratio of the loop on
        the magnetic field strength
Annex I (informative) - Overspill of magnetic field from an
        induction-loop system
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

Defines requirements for the field strength in audio-frequency induction loops for hearing aid purposes, which will give adequate signal-to-noise ratio without overloading the hearing aid.

Applies to audio-frequency induction loop systems producing an alternating magnetic field at audio frequencies and intended to provide an input signal for hearing aids operating with an induction pick-up coil. The standard specifies requirements for the field strength in audio-frequency induction loops for hearing aid purposes, which will give adequate signal-to-noise ratio without overloading the hearing aid. The standard also specifies the minimum frequency response requirements for acceptable intelligibility. Methods for measuring the magnetic field strength are specified, and information is given on appropriate measuring equipment (see Annex B), information that should be provided to the operator and users of the system (see Annex C), and other important considerations.

Committee
EPL/29
DevelopmentNote
Supersedes 98/230881 DC and BS 6083-4(1981). (05/2005) Supersedes 12/30264220 DC. (02/2015) Redesignated as BS EN 60118-4. (05/2018)
DocumentType
Standard
Pages
44
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

BS 8300:2001 Design of buildings and their approaches to meet the needs of disabled people. Code of practice
BS 5839-9:2011 Fire detection and fire alarm systems for buildings Code of practice for the design, installation, commissioning and maintenance of emergency voice communication systems
BIP 3043 : 2005 BS 8300 - DESIGN OF BUILDINGS AND THEIR APPROACHES TO MEET THE NEEDS OF DISABLED PEOPLE - CODE OF PRACTICE
BS 7594:2011 Code of practice for audio-frequency induction-loop systems (AFILS)
BS 8300(2009) : 2009 DESIGN OF BUILDINGS AND THEIR APPROACHES TO MEET THE NEEDS OF DISABLED PEOPLE - CODE OF PRACTICE
08/30182649 DC : DRAFT MAY 2008 BS 8300 - DESIGN OF BUILDINGS AND THEIR APPROACHES TO MEET THE NEEDS OF DISABLED PEOPLE - CODE OF PRACTICE
17/30335834 DC : 0 BS 8300-2 - DESIGN OF AN ACCESSIBLE AND INCLUSIVE BUILT ENVIRONMENT - PART 2: BUILDINGS - CODE OF PRACTICE
BIP 3044 : 2005 BS 8300 - DESIGN OF BUILDINGS AND THEIR APPROACHES TO MEET THE NEEDS OF DISABLED PEOPLE - CODE OF PRACTICE
09/30187281 DC : 0 BS 5839-9 - FIRE DETECTION AND FIRE ALARM SYSTEMS FOR BUILDINGS - PART 9: CODE OF PRACTICE FOR THE DESIGN, INSTALLATION, COMMISSIONING AND MAINTENANCE OF EMERGENCY VOICE COMMUNICATION SYSTEMS

HD 483.10 : 200S1 SOUND SYSTEM EQUIPMENT - PART 10: PEAK PROGRAMME LEVEL METERS
IEC 62489-1:2010+AMD1:2014 CSV Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying theperformance of system components
IEC 61938 : 2.0 MULTIMEDIA SYSTEMS - GUIDE TO THE RECOMMENDED CHARACTERISTICS OF ANALOGUE INTERFACES TO ACHIEVE INTEROPERABILITY
IEC 60268-3:2013 Sound system equipment - Part 3: Amplifiers
IEC 60268-10:1991 Sound system equipment - Part 10: Peak programme level meters
EN 61672-1:2013 Electroacoustics - Sound level meters - Part 1: Specifications
EN 60268-3:2013 Sound system equipment - Part 3: Amplifiers
IEC 61938:2013 Multimedia systems - Guide to the recommended characteristics of analogue interfaces to achieve interoperability
IEC 61260-1:2014 Electroacoustics - Octave-band and fractional-octave-band filters - Part 1: Specifications
IEC 60268-1:1985 Sound system equipment. Part 1: General
TR 101 767 : 1.1.1 HUMAN FACTORS (HF); SYMBOLS TO IDENTIFY TELECOMMUNICATIONS FACILITIES FOR DEAF AND HARD OF HEARING PEOPLE; DEVELOPMENT AND EVALUATION

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