Don't have a credit card? Never mind we support BANK TRANSFER .

PRICES include / exclude VAT
Homepage>BSI Standards >17 METROLOGY AND MEASUREMENT. PHYSICAL PHENOMENA>17.140 Acoustics and acoustic measurements>17.140.50 Electroacoustics>BS EN IEC 60118-4:2015+A1:2018 Electroacoustics. Hearing aids Induction-loop systems for hearing aid purposes. System performance requirements
immediate downloadReleased: 2018-04-30
BS EN IEC 60118-4:2015+A1:2018 Electroacoustics. Hearing aids Induction-loop systems for hearing aid purposes. System performance requirements

BS EN IEC 60118-4:2015+A1:2018

Electroacoustics. Hearing aids Induction-loop systems for hearing aid purposes. System performance requirements

Format
Availability
Price and currency
English Secure PDF
Immediate download
354.96 EUR
English Hardcopy
In stock
354.96 EUR
Standard number:BS EN IEC 60118-4:2015+A1:2018
Pages:58
Released:2018-04-30
ISBN:978 0 580 97036 8
Status:Standard
DESCRIPTION

BS EN IEC 60118-4:2015+A1:2018


This standard BS EN IEC 60118-4:2015+A1:2018 Electroacoustics. Hearing aids is classified in these ICS categories:
  • 17.140.50 Electroacoustics

This part of IEC 60118 is applicable 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 (telecoil). Throughout this standard, it is assumed that the hearing aids used with it conform to all relevant parts of IEC 60118.

This 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.

This standard does not specify requirements for loop driver amplifiers or associated microphone or audio signal sources, which are dealt with in IEC 62489-1, or for the field strength produced by equipment, such as telephone handsets, within the scope of ITU-T P.370.


Customers who bought this item also bought
English PDF
Immediate download
271.92 EUR
English Hardcopy
In stock
271.92 EUR
Spanish PDF
Immediate download
226.60 EUR
Spanish Hardcopy
In stock
226.60 EUR
English PDF
Immediate download
99.00 EUR
English Hardcopy
In stock
99.00 EUR
Spanish PDF
Immediate download
82.50 EUR
Spanish Hardcopy
In stock
82.50 EUR
English PDF
Immediate download
115.00 EUR
English Hardcopy
In stock
115.00 EUR
French PDF
Immediate download
115.00 EUR
French Hardcopy
In stock
115.00 EUR
English PDF
Immediate download
124.08 EUR
English Hardcopy
In stock
124.08 EUR
Spanish PDF
Immediate download
103.40 EUR
Spanish Hardcopy
In stock
103.40 EUR