IEC 62127-3:2007 EN_D 5907db2a
Ultrasonics - Hydrophones - Part 3: Properties of hydrophones for ultrasonic fields up to 40 MHz
REVISED
发布日期 :
2007-08-23
实施日期 :
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 :
IEC TR 63079:2017+AMD1:2018+AMD2:2020 CSV EN 40e1c3d7
Code of practice for hearing-loop systems (HLS)
现行
发布日期 :
2020-04-01
实施日期 :
IEC TR 63079:2017/AMD1:2018 EN a22100fb
Amendment 1 - Code of practice for hearing-loop systems (HLS)
现行
发布日期 :
2018-09-05
实施日期 :