Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 9: Preferred test conditions for the determination of reference hearing threshold levels— 14 стр.
Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones— 18 стр.
Electroacoustics - Audiometric equipment - Part 7: Instruments for the measurement of auditory brainstem responses (IEC 60645-7:2009) (english version)
