NEN EN IEC 60118-4 : 2015 AMD 1 2018現行
ELECTROACOUSTICS - HEARING AIDS - PART 4: INDUCTION-LOOP SYSTEMS FOR HEARING AID PURPOSES - SYSTEM PERFORMANCE REQUIREMENTS
出版：Netherlands Standards
專家解讀視頻
基本信息
標準編號： NEN EN IEC 60118-4 : 2015 AMD 1 2018
標準類別：Standard
出版單位：Netherlands Standards
標準頁數：0
標準簡介
Defines requirements for the field strength in audio-frequency induction loops for hearing aid purposes, which will give adequate signal-to-noise ratio without overloading the hearing aid. Also specifies the minimum frequency response requirements for acceptable intelligibility.
等同采用的國際標準
IEC 60118-4 : 3.1 - Identical
