DS DS/EN ISO 389-5
DS DSEN SO 389-5 2006-DEC-05 Acoustcs - Reference zero for the calbraton of audometrc equpment - Part 5 Reference equvalent threshold sound pressure levels for pure tones n the frequency range 8 kHz to 16 kHz
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This standard specifies reference equivalent threshold sound pressure levels (RETSPLs) of pure tones in the frequency range from 8 kHz to 16 kHz applicable to the calibration of air conduction audiometers for specific earphones.