# ISO 389:1975 — Withdrawn and superseded ISO standards

For ISO 389:1975, item title is Acoustics — Reference zero for the calibration of audiometric equipment; status code is 9599; successor is ISO 389:1985; withdrawn / published date is 1975-01-15, recorded from its source on 2026-08-05.

- **Identifier:** ISO 389:1975 _(verified: appears in the quote below)_
- **Item title:** Acoustics — Reference zero for the calibration of audiometric equipment _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 389:1985
- **Withdrawn / published date:** 1975-01-15 _(verified: appears in the quote below)_

## What the source says

> 53428,IS,,ISO 389:1975,Acoustics — Reference zero for the calibration of audiometric equipment,Acoustique — Zéro de référence pour l'étalonnage d'équipements audiométriques,1975-01-15,1,['13.140'],ISO/TC 43,9599,,[4374],"['en','fr']",4,

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).