IEC 60118-4:1981
Hearing aids. Part 4 : Magnetic field strength in audio-frequency induction loops for hearing aid purposes

Standard No.

IEC 60118-4:1981

Release Date

1981

Published By

International Electrotechnical Commission (IEC)

Status

Withdraw

Replace By

IEC 60118-4:1981/AMD1:1998

Latest

IEC 60118-4:2014/AMD1:2017

Scope

Applies to systems intended to provide an input signal for these devices. Specifies a standard value of magnetic field strength and will give an adequate signal-to-noise ratio without overloading the device. The recommended value may also be applicable t

IEC 60118-4:1981 history

• 2017 IEC 60118-4:2014/AMD1:2017 Amendment 1 - Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements
• 2014 IEC 60118-4:2014 Electroacoustics - Hearing aids - Part 4: Induction loop systems for hearing aid purposes - System performance requirements
• 2006 IEC 60118-4:2006 Electroacoustics - Hearing aids - Part 4: Induction loop systems for hearing aid purposes - Magnetic field strength
• 1970 IEC 60118-4:1981/AMD1:1998 Amendment 1 - Hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
• 1981 IEC 60118-4:1981 Hearing aids. Part 4 : Magnetic field strength in audio-frequency induction loops for hearing aid purposes