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.
BSI recommends this version of standard for organisations operating in or with the UK. The ISO edition is available here if required.