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ISO 389:1991Withdrawn

Acoustics — Standard reference zero for the calibration of pure-tone air conduction audiometers

Acoustique — Zéro normal de référence pour l'étalonnage des audiomètres à sons purs en conduction aérienne

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Life cycle

Replaces

ISO 389:1985WithdrawnAcoustics — Standard reference zero for the calibration of pure tone air conduction audiometersInternational Standard · Published 14 Mar 1985 · ISO/TC 43

Replaced by

ISO 389-1:1998WithdrawnAcoustics — Reference zero for the calibration of audiometric equipment — Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphonesInternational Standard · Published 29 Oct 1998 · ISO/TC 43