Non-destructive testing of steel tubes — Part 3: Automated full peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imperfections — Amendment 1: Change of dimensions of the reference notch
钢管无损检测第3部分:纵向和/或横向缺陷检测用无缝和焊接(埋弧焊除外)铁磁钢管的全周向自动漏磁检测修改1:基准缺口尺寸的变化