NF EN 60118-4:2007被替代
Electroacoustics - Hearing Aids - Part 4: Induction Loop Systems For Hearing Aid Purposes - Magnetic Field Strength
出版：Association Francaise de Normalisation
专家解读视频
Applies to audio-frequency induction loop systems producing an alternating magnetic field at audio frequencies and intended to provide an input signal for hearing aids operating with an induction pick-up coil.
Indice de classement: C97-624 PR NF EN 60118-4 March 2005 (03/2005) Supersedes NFC 97 624 (06/2005) 1998 version along with its amendment is still active (04/2007)
BS EN 60118-4:2015 - Identical
SS EN 60118-4 Ed. 3 (2015) - Identical
EN 60118-4:2015 - Identical
SS EN 60118-4 Ed. 2 (2007) - Identical
SN EN 60118-4:1998 - Identical
BS EN 60118-4:2006 - Identical
DIN EN 60118-4 (2007-08) - Identical
I.S. EN 60118-4:2006 - Identical
NBN EN 60118-4:2007 - Identical
IEC 60118-4 Ed. 2.0 - Identical
UNE EN 60118-4:2007 - Identical
SS EN 60118-4:1998 - Identical
