IEC 62127-3:2022 EN-FR cfba8574
Ultrasonics - Hydrophones - Part 3: Properties of hydrophones for ultrasonic fields
现行
发布日期 :
2022-12-19
实施日期 :
IEC 62127-3:2022 RLV EN 7127dd28
Ultrasonics - Hydrophones - Part 3: Properties of hydrophones for ultrasonic fields
现行
发布日期 :
2022-12-19
实施日期 :
IEC 62489-2:2014 EN-FR 2007d716
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
现行
发布日期 :
2014-09-24
实施日期 :
IEC 60118-0:1983/AMD1:1994 EN-FR e177857a
Amendment 1 - Hearing aids. Part 0: Measurement of electroacoustical characteristics
REVISED
发布日期 :
1994-01-20
实施日期 :