ISO 29821:2026

Condition monitoring and diagnostics of machine systems — Ultrasound — General requirements, guidelines, procedures and validation ISO 29821:2026

Publication date:   Apr 16, 2026

Scope

This document

gives guidelines for establishing severity assessment criteria for anomalies identified by airborne (AB) and structure-borne (SB) ultrasound,
specifies methods and requirements for carrying out ultrasonic inspection, testing, measurement and monitoring of machines, including safety recommendations and sources of error, and
provides information relative to data interpretation, assessment criteria and reporting.