IEC 62489-2:2011 EN-FR 0e96784c
Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 2: Methods of calculating and measuring the low-frequency magnetic field emissions from the loop for assessing conformity with guidelines on limits for human exposure
REVISED
发布日期 :
2011-01-26
实施日期 :
IEC TR 60782:1984 EN-FR 85adeb9b
Measurements of ultrasonic magnetostrictive transducers
现行
发布日期 :
1984-01-01
实施日期 :
ISO/TR 25417:2007 EN/RU 8bb692ff
Acoustics — Definitions of basic quantities and terms
现行
发布日期 :
2007-11-20
实施日期 :
ISO 21388:2020 EN 8b4d5884
Acoustics — Hearing aid fitting management (HAFM)
现行
发布日期 :
2020-03-23
实施日期 :