This International Standard defines a procedure for classifying internal indications as planar or non-planar.
This procedure is only suitable for indications located at least 5 mm below the unground surface of the joint.
Annex A defines the procedure in the form of a flowchart. Figure 1 illustrates the location of indications.
ISO 23279:2007 history
2017ISO 23279:2017 Non-destructive testing of welds — Ultrasonic testing — Characterization of discontinuities in welds
2010ISO 23279:2010 Non-destructive testing of welds - Ultrasonic testing - Characterization of indications in welds
2007ISO 23279:2007 Non-destructive testing of welds - Ultrasonic testing - Characterization of indications in welds