Full Description ADOPTED_FROM:EN 13554:2011 This European Standard specifies the general principles required for the acoustic emission testing (AT) of industrial structures, components, and different materials under stress and for harsh environment, in order to provide a defined and repeatable performance. It includes guidelines for the preparation of application documents, which describe the specific requirements for the application of the AE method. Unless otherwise specified in the referencing documents, the minimum requirements of this European Standard are applicable.