Standard IEC standard · IEC 60118-4:1981

Hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes

Status: Upphävd

· Ersätts av: IEC 60118-4:2006
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Standard IEC standard · IEC 60118-4:1981

Hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
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Omfattning
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. Specifies a standard value of magnetic field strength in audio-fre

Ämnesområden

Elektroakustik (17.140.50)


Köp denna standard

Standard IEC standard · IEC 60118-4:1981

Hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
Prenumerera på standarden - Läs mer Dölj
Pris: 360 SEK
standard ikon pdf

PDF

Pris: 360 SEK
standard ikon

Papper

Fler alternativ Färre alternativ

Produktinformation

Språk: Engelska Franska

Framtagen av: IEC

Internationell titel: Hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes

Artikelnummer: STD-120410

Utgåva: 1

Fastställd: 1981-01-01

Antal sidor: 9

Ersätts av: IEC 60118-4:2006