BS EN 60118-4:1998
Withdrawn
Date published:
Hearing aids, Magnetic field strength in audio-frequency induction loops for hearing aid purposes
Gives a standard value of magnetic field strength in audio-frequency induction loops for hearing aid purposes that will give an adequate signal-to-noise ratio without overloading the hearing aid.
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17.140.50 Electroacoustics
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BS EN 60118-4:1998
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