Norm
[AKTUELL]
AS/NZS ISO 389.1
AS/NZS ISO 389.1
Acoustics - Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
Titel (englisch)
Acoustics - Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
