EN 10246-9:2000 钢管的无损检验.第9部分:探测用纵向和/或横向缺陷埋弧焊钢管焊缝的自动超声检验
Non-Destructive Testing of Steel Tubes - Part 9: Automatic Ultrasonic Testing of the Weld Seam of Submerged Arc Welded Steel Tubes for the Detection of Longitudinal and/or Transverse Imperfections