SS-EN-ISO-13588 Non-destructive testing of welds - Ultrasonic testing - Use of automated phased array technology (ISO 13588:2012)


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ISO 13588:2012 specifies the application of the phased array technology for the semi- or fully automated ultrasonic testing of fusion-welded joints in metallic materials of minimum thickness 6 mm. It applies to full penetration welded joints of simple geometry in plates, pipes, and vessels, where both the weld and parent material are low-alloyed carbon steel. Where material-dependent ultrasonic parameters are specified in ISO 13588:2012, they are based on steels having an ultrasonic sound velocity of (5 920 ± 50) m/s for longitudinal waves, and (3 255 ± 30) m/s for transverse waves. It is necessary to take this fact into account when examining materials with a different velocity. ISO 13588:2012 provides guidance on the specific capabilities and limitations of phased array technology for the detection, location, sizing and characterization of discontinuities in fusion-welded joints. Phased array technology can be used as a stand-alone technology or in combination with other non-destructive testing (NDT) methods or techniques, for manufacturing inspection, pre-service and for in-service inspection. ISO 13588:2012 specifies four testing levels, each corresponding to a different probability of detection of imperfections. ISO 13588:2012 permits assessment of indications for acceptance purposes based on either amplitude (equivalent reflector size) and length or height and length. ISO 13588:2012 does not include acceptance levels for discontinuities. ISO 13588:2012 is not applicable: for coarse-grained metals and austenitic welds; for automated testing of welds during the production of steel products covered by ISO 10893-8, ISO 10893-11, and ISO 3183.

To find similar documents by classification:

25.160.40 (Welded joints and welds Including welding position and mechanical and non-destructive testing of welded joints)

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Designation Name

SS-EN ISO 13588:2012

Revision Level




Publication Date

Oct. 19, 2012



Page Count


International Equivalent

EN ISO 13588:2012(IDT); ISO 13588:2012(IDT)