SN EN 60118-4:1998现行
Hearing Aids - Part 4: Magnetic Field Strength In Audio-frequency Induction Loops For Hearing Aid Purposes
出版：Swiss Standards
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.
DIN EN 60118-4 (2007-08) - Identical
BS EN 60118-4:2006 - Identical
SS EN 60118-4 Ed. 2 (2007) - Identical
SS EN 60118-4:1998 - Identical
UNE EN 60118-4:2007 - Identical
IEC 60118-4 Ed. 2.0 - Identical
NBN EN 60118-4:2007 - Identical
NF EN 60118-4:2007 - Identical
I.S. EN 60118-4:2006 - Identical
EN 60118-4:2015 - Identical
NBN EN 60118-4:2015 - Identical
SS EN 60118-4 Ed. 3 (2015) - Identical
NF EN 60118-4:2015 - Identical
BS EN 60118-4:2015 - Identical
UNE EN 60118-4:2016 - Identical
