SS EN 60118-4:1998被替代
Hearing Aids - Part 4: Magnetic Field Strength In Audio-frequency Induction Loops For Hearing Aid Purposes
出版：Standardiserings-Kommissionen I Sverige
专家解读视频
Applies to audio-frequency induction loop systemsproducing an alternating magnetic field at audiofrequencies and intended to provide an input signalfor hearing aids operating with an induction pick-upcoil.
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
DIN EN 60118-4 (2007-08) - Identical
BS EN 60118-4:2006 - Identical
SN EN 60118-4:1998 - Identical
