NEN-EN-IEC 60118-4
Hearing aids - Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
inactive
| Organization: | NEN |
| Publication Date: | 1 September 1998 |
| Status: | inactive |
| Page Count: | 20 |
| ICS Code (Electroacoustics): | 17.140.50 |
scope:
This standard 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. The object of this standard is to specify a standard value of magnetic field strength in audiofrequency induction loops for hearing aid purposes, such as will give an adequate signal-to-noise ratio without overloading the hearing aid.
Document History
February 1, 2018
Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements
A description is not available for this item.
March 1, 2015
Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements
NEN-EN-IEC 60118-4 is applicable to audio-frequency induction-loop systems producing an alternating magnetic field at audio frequencies and intended to provide an input signal for hearing aids...
January 1, 2007
Electroacoustics - Hearing aids - Part 4: Induction loop systems for hearing aid purposes - Magnetic field strength
This international standard is applicable to audio-frequency induction loop systems producing an alternating magnetic field at audio frequencies and intended to provide an input signal for hearing...
September 1, 1998
Hearing aids - Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
A description is not available for this item.
NEN-EN-IEC 60118-4
September 1, 1998
Hearing aids - Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
This standard 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...