DS DS/EN 60645-2
DS DSEN 60645-2 1997-OCT-22 Audometers - Part 2 Equpment for speech audometry
DS DSEN 60645-2 1997-OCT-22 Audometers - Part 2 Equpment for speech audometry
Specifies requirements for audiometers or parts thereof designed to provide a means of presenting speech sounds to a subject in a standardized manner for example for the measurement of speech recognition.