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 :
ISO 7196:1995 EN 0bd51f45
Acoustics — Frequency-weighting characteristic for infrasound measurements
现行
发布日期 :
1995-03-09
实施日期 :
ISO 7605:2025 EN 62489be5
Underwater acoustics — Measurement of underwater ambient sound
现行
发布日期 :
2025-07-23
实施日期 :
IEC 60118-2:1983 EN-FR 9b641b74
Hearing aids. Part 2: Hearing aids with automatic gain control circuits
被代替
发布日期 :
1983-01-01
实施日期 :

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