EN ISO 389-8:2004 Acoustics - Reference Zero for the Calibration of Audiometric Equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones
IEC 60318-1:1998 Electroacoustics - Simulators of human head and ear - Part 1: Ear simulator for the calibration of supra-aural earphones
IEC 60318-2:1998 Electroacoustics - Simulators of human head and ear - Part 2: An interim acoustic coupler for the calibration of audiometric earphones in the extended high-frequency range
IEC 60645-2:1993 Audiometers; part 2: equipment for speech audiometry
ISO 389-1:1998 Acoustics - Reference zero for the calibration of audiometric equipment - Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
ISO 4869-1:1990 Acoustics; hearing protectors; part 1: subjective method for the measurement of sound attenuation
EN ISO 389-8:2004 history
2004EN ISO 389-8:2004 Acoustics - Reference Zero for the Calibration of Audiometric Equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones