EVS-EN ISO 17638:2016

This document specifies techniques for detection of surface imperfections in welds in ferromagnetic
materials, including the heat affected zones, by means of magnetic particle testing. The techniques are
suitable for most welding processes and joint configurations. Variations in the basic techniques that
will provide a higher or lower test sensitivity are described in Annex A.
This document does not specify acceptance levels of the indications. Further information on acceptance
levels for indications may be found in ISO 23278 or in product or application standards.