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IEC 60118-4:2006 ED2

Electroacoustics - Hearing aids - Part 4: Induction loop systems for hearing aid purposes - Magnetic field strength
27. 10. 2006.

Опште информације

99.60     11. 12. 2014.

IEC

TC 29

Međunarodni standard

17.140.50  

engleski   francuski   španski  

Kupovina

Revidiran

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Apstrakt

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.

Životni ciklus

PRETHODNO

POVUČEN
IEC 60118-4:1981 ED1

POVUČEN
IEC 60118-4:1981/AMD1:1998 ED1

TRENUTNO

POVUČEN
IEC 60118-4:2006 ED2
99.60 Povlačenje stupilo na snagu
11. 12. 2014.

REVIDIRAN OD

OBJAVLJEN
IEC 60118-4:2014 ED3