Electroacoustics - Hearing aids - Part 0: Measurement of the performance characteristics of hearing aids (IEC 29/804/CDV:2013); German version FprEN 60118-0:2013
Electroacoustics - Hearing aids - Part 0: Measurement of the performance characteristics of hearing aids (IEC 60118-0:2015); German version EN 60118-0:2015— 38 стр.