Acoustics — Reference zero for the calibration of audiometric equipment — Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
Edition 1 1998-10
Withdrawn
ISO 389-1:1998
30443
ISO 389-1:1998Acoustics — Reference zero for the calibration of audiometric equipmentPart 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones