This European Standard describes the general principles of acoustic emission (AE) testing of materials, components and structures made of FRP with the aim of:- materials characterisation;- proof testing/manufacturing quality control;- retesting/in-service inspection;- health monitoring.When AE testing is used to assess the integrity of FRP materials, components or structures or identify critical zones of high damage accumulation or damage growth under load this standard further describes the specific methodology (e.g. suitable instrumentation, typical sensor arrangements, location procedures, etc.).It also describes available, generally applicable evaluatio