Non-destructive testing of steel tubes - Part 14: Automatic ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of laminar imperfections; English version of DIN EN 10246-14
钢管无损检测.第14部分:检测层状缺陷用无缝和焊接(埋弧焊除外)钢管的自动超声波检测;德文版EN 10246-14:1999