NF C97-628*NF EN 60118-8:2006 Electroacoustics - Hearing aids - Part 8 : methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions
2006NF C97-628*NF EN 60118-8:2006 Electroacoustics - Hearing aids - Part 8 : methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions