DIN EN ISO 23279:2017-12 Non-destructive testing of welds - Ultrasonic testing - Characterization of discontinuities in welds (ISO 23279:2017); German version EN ISO 23279:2017
2017DIN EN ISO 23279:2017-12 Non-destructive testing of welds - Ultrasonic testing - Characterization of discontinuities in welds (ISO 23279:2017); German version EN ISO 23279:2017
2017DIN EN ISO 23279:2017 Non-destructive testing of welds - Ultrasonic testing - Characterization of discontinuities in welds (ISO 23279:2017); German version EN ISO 23279:2017
2010DIN EN ISO 23279:2010 Non-destructive testing of welds - Ultrasonic testing - Characterization of indications in welds (ISO 23279:2010); German version EN ISO 23279:2010