This document specifies how a welding procedure specification for electron or laser beam welding is qualified by a welding procedure test. This standard is a part of a series of standards, details of this series are given in ISO 15607:2019, annex A. This document defines the conditions for the execution of welding procedure qualification tests and the limits of validity of a qualified welding procedure for all practical welding operations within the range of variables listed in Clause 8. Tests shall be carried out in accordance with this standard together with additional tests when specified. This document applies to metallic materials, irrespective of the shape of the parts, their thicknesses, manufacturing method (rolling, forging, casting, sintering, etc.) and their heat treatment. It covers both the production of new parts and repair work.