12/30264220 DC : 0
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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BS EN 60118-4 ED.3 - ELECTROACOUSTICS - HEARING AIDS - PART 4: INDUCTION LOOP SYSTEMS FOR HEARING AID PURPOSES - SYSTEM PERFORMANCE REQUIREMENTS
Hardcopy , PDF
English
28-02-2015
FOREWORD
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 Measurement of the magnetic background
noise level of the installation site
8 Characteristics to be specified, methods of
measurement and requirements
9 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 AFILS
Bibliography
BS EN 60118-4 ED.3
| Committee |
EPL/29
|
| DocumentType |
Draft
|
| Pages |
46
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| 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 60268-3:2013 | Sound system equipment - Part 3: Amplifiers |
| IEC 60268-10:1991 | Sound system equipment - Part 10: Peak programme level meters |
| IEC 60118-1:1995+AMD1:1998 CSV | Hearing aids - Part 1: Hearing aids with induction pick-up coil input |
| IEC 60268-1:1985 | Sound system equipment. Part 1: General |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
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