ISO 18081 is an international standard that covers specifications for non-destructive testing.
ISO 18081 specifies the general principles required for leak detection by acoustic emission testing (AT). It is addressed to the application of the methodology on structures and components, where a leak flow as a result of pressure differences appears and generates acoustic emission (AE).
ISO 18081 describes phenomena of the AE generation and influence of the nature of fluids, the shape of the gap, wave propagation, and environment. The different application methods, instrumentation, and presentation of AE results are discussed.
ISO 18081 also includes the guidelines for the preparation of application documents that describe specific requirements for the application of the AE method.
ISO 18081 on Leak detection by means of acoustic emission is useful for:
Many obstacles and difficulties are faced while carrying out the maintenance and servicing of underground technological pipes. The leakage struck by an accident happens to be a common reason to worry as it affects the environment and the economy greatly. Hence it is necessary to detect such leakages in huge pipelines.
ISO 18081 presents you with a non-destructive testing method used for the leak detection of the media in the pipeline by means of acoustic emission, which helps the users locate the leakage problem area of the pipeline without disturbing or damaging the whole pipeline system.
It gives you detailed information about the acoustic emission test method, explains the principle of the test, steps for leak detection, helps the users to execute the data presentation as well as interpretation, informs about quality management documents, and helps in concluding the final test report.
Overall, ISO 18081 helps the users with the detectability of the leak that depends on the fluid type and its physical properties, which contributes to the dynamic behavior of the leak flow.
EN ISO 18081:2016
ISO 18081:2016