Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying the performance of system components (IEC 62489-1:2010) (english version)
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 (IEC 62489-2:2011) (english version)
Electroacoustics - Audio-frequency induction loop systems for assisted hearing -- Part 1: Methods of measuring and specifying the performance of system components (IEC 62489-1:2010 + A1:2014) (english version)
