IEC 60118-4 : 3.1现行
ELECTROACOUSTICS - HEARING AIDS - PART 4: INDUCTION-LOOP SYSTEMS FOR HEARING AID PURPOSES - SYSTEM PERFORMANCE REQUIREMENTS
出版：International Electrotechnical Committee
专家解读视频
Pertains 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 (telecoil).
CEI 29-11 : 1998 - Identical
DS EN 60118-4 : 2015 - Identical
BS 6083-4(1981) : 1981 - Similar to
NFC 97 610 : 1986 - Identical
DIN EN 60118-4 : 2015 - Identical
I.S. EN 60118-4:2015 - Identical
BS EN 60118-4 : 2006 - Identical
NEN EN IEC 60118-4 : 2015 AMD 1 2018 - Identical
DIN IEC 60118-4 : 1991 - Similar to
NF EN IEC 60118-4 : 2015 AMD 1 2018 - Identical
NEN 10118-4 : 1988 - Similar to
UNE 20603-4 : 1982 - Identical
PN EN 60118-4 : 2015 - Identical
CEI EN 60118-4 : 2016 - Identical
