NF EN ISO 17635, A89-500 (04/2025)

ISO 17635:2016 provides guidance for the selection of non-destructive testing (NDT) methods for welded joints and the evaluation of the results in quality control, based on the requirements for quality, material, weld thickness, welding process and extent of testing. ISO 17635:2016 also specifies general rules and standards applicable to different types of testing, both in terms of methodology and acceptance levels for metallic materials. Acceptance levels cannot be a direct interpretation of the quality levels defined in ISO 5817 or ISO 10042. They are related to the overall quality of the batch of weldments produced. The requirements for acceptance levels for NDT only correlate to the quality levels defined in ISO 5817 or ISO 10042 (moderate, medium and high) on a general basis, and not in detail for each indication . Annex A correlates standards for quality, non-destructive testing and acceptance levels. Annex B provides an overview of standards for quality levels, acceptance levels and non-destructive testing methods.
(Automatic translation from French)