# ISO 29821:2018 — Withdrawn and superseded ISO standards

For ISO 29821:2018, item title is Condition monitoring and diagnostics of machines — Ultrasound — General guidelines, procedures and validation; status code is 9599; successor is ISO 29821:2026; withdrawn / published date is 2018-01-25, recorded from its source on 2026-08-05.

- **Identifier:** ISO 29821:2018 _(verified: appears in the quote below)_
- **Item title:** Condition monitoring and diagnostics of machines — Ultrasound — General guidelines, procedures and validation _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 29821:2026
- **Withdrawn / published date:** 2018-01-25 _(verified: appears in the quote below)_

## What the source says

> 71196,IS,,ISO 29821:2018,"Condition monitoring and diagnostics of machines — Ultrasound — General guidelines, procedures and validation",Surveillance des conditions et diagnostic d'état des machines — Ultrasons,2018-01-25,1,['17.160'],ISO/TC 108/SC 5,9599,"[45693,50509]",[88266],['en'],24,"<p>ISO 29821:2018</p><p>- gives guidelines for establishing severity assessment criteria for anomalies identified by airborne (AB) and structure-borne (SB) ultrasound,</p><p>- specifies methods and requirements for carrying out ultrasonic examination of machines, including safety recommendations and sources of error, and</p><p>- provides information relative to data interpretation, assessmen

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).