EN ISO 16823:2025

This document specifies the principles of ultrasonic through-transmission techniques.Through-transmission techniques can be used for:— detection of discontinuities;— determination of sound attenuation.The general principles required for the use of ultrasonic testing of industrial products are described in ISO16810.The through-transmission technique is used for the testing of flat products, e.g. plates and sheets. Further, it can be used for tests, for example:— where the shape, dimensions or orientation of possible discontinuities are unfavourable for direct reflection;— of materials with high sound attenuation;— on thin test objects.