00675nam a22001097a 4500245019200000250000800192260006400200300001000264505025200274650002200526650001700548  aIEC 60118-7:2005-Electroacoustics - Hearing aids - Part 7 : bMeasurement of the performance characteristics of hearing aids for production, supply and delivery quality assurance purposes  a2.0  aGeneva :bInternational Electrotechnical Commission,c2005.  a45 p.  aGives recommendations for the measurement of the performance characteristics of air-conduction hearing aids of a particular model for production, supply and delivery quality assurance purposes. The manufacturer will normally assign nominal values.  aElectroacoustics   aHearing aids