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ISO 7566:1987Withdrawn

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

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

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Replaced by

ISO 389-3:1994WithdrawnAcoustics — Reference zero for the calibration of audiometric equipment — Part 3: Reference equivalent threshold force levels for pure tones and bone vibratorsInternational Standard · Published 22 Sep 1994 · ISO/TC 43