Standard
UPDATE AVAILABLE
AS 1088.4-1987
[Superseded]Hearing aids, Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
Specifies a standard value of magnetic field strength in audio-frequency induction loops for hearing aid purposes, in order to give an adequate signal-to-noise ratio without overloading the hearing aid. Technically identical with IEC Publication 118-4.
Published: 01/01/1987
Pages: 2
Content history
Content history
[Withdrawn]
[Superseded]
[Superseded]
IEC 118-4
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