# ISO 29821-2:2016 — Withdrawn and superseded ISO standards For ISO 29821-2:2016, item title is Condition monitoring and diagnostics of machines — Ultrasound — Part 2: Procedures and validation; status code is 9599; successor is ISO 29821:2018; withdrawn / published date is 2016-04-04, recorded from its source on 2026-08-05. - **Identifier:** ISO 29821-2:2016 _(verified: appears in the quote below)_ - **Item title:** Condition monitoring and diagnostics of machines — Ultrasound — Part 2: Procedures and validation _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 29821:2018 - **Withdrawn / published date:** 2016-04-04 _(verified: appears in the quote below)_ ## What the source says > 50509,IS,,ISO 29821-2:2016,Condition monitoring and diagnostics of machines — Ultrasound — Part 2: Procedures and validation,Surveillance des conditions et diagnostic d'état des machines — Ultrasons — Partie 2: Modes opératoires et validation,2016-04-04,1,['17.160'],ISO/TC 108/SC 5,9599,,[71196],['en'],9,"
ISO 29821-2:2016
- provides guidance on establishing severity assessment criteria for anomalies identified by airborne (AB) and structure borne (SB) ultrasound,
- outlines methods and requirements for carrying out ultrasonic examination of machines, including safety recommendations and sources of error, and
- provides information relative to data interpre ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).