DIN EN 60118-0:2013-07

This standard gives recommendations for the measurement of the performance characteristics of air-conduction hearing aids based on a free-field technique and measured with an acoustic coupler. Described are the recommended methods of measurement for the evaluation of the electroacoustical characteristics of hearing aids e. g. for type testing and manufacturer data sheets. The methods are chosen to be practical and reproducible, consequently based on fixed parameters chosen, to a certain extent arbitrarily.