BS EN 60118-2:1996(1999)*BS 6083-2:1996 Hearing aids — Part 2 : Methods for measurement of electroacoustical characteristics of hearing aids with automatic gain control circuits
2015BS EN 60118-0:2015 Electroacoustics. Hearing aids. Measurement of the performance characteristics of hearing aids
1996BS EN 60118-2:1996 Hearing aids - Methods for measurement of electroacoustical characteristics of hearing aids with automatic gain control circuits