ISO 389-9:2009 (R2025)
Active , Confirmed Standard
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ISO 389-9:2009 (R2025)

Acoustics
Reference zero for the calibration of audiometric equipment

Summary

ISO 389-9:2009 specifies test conditions for determining the hearing thresholds of subjects for the purpose of establishing standardized values for reference hearing threshold levels.

Notes

90.93 : Norme internationale confirmée

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 05/07/2009
Confirmation Date 10/09/2025
Edition 1
Page Count 9
EAN ---
ISBN ---
Weight (in grams) ---
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