IEC 60118-4 Ed. 3.1現行
Electroacoustics - Hearing aids Part 4: Induction-loop systems for hearing aid purposes - System performance requirements
出版：International Electrotechnical Committee
專家解讀視頻
基本信息
標準編號： IEC 60118-4 Ed. 3.1
發布時間：2017/11/9 0:00:00
標準類別：Standard
出版單位：International Electrotechnical Committee
標準頁數：236
標準簡介
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).
本標準替代的舊標準
