石油天然气工业 钢管无损检测方法 第6部分：无缝和焊接（埋弧焊除外）铁磁性钢管纵向和/或横向缺欠的全周自动漏磁检测
Petroleum and natural gas industries--Non-destructive testing (NDT)methods of steel tubes—Part 6: Automated full peripheral flux leakagetesting of seamless and welded ( except submerged arc-welded) ferromagneticsteel tubes for the detection of longitudinal and/or transverse imperfections
2014-10-15
SY/T 6423.8-2017
石油天然气工业 钢管无损检测方法 第8部分:无缝和焊接(埋弧焊除外)钢管纵向和/或横向缺欠的全周自动超声检测
Petroleum and natural gas industries—Non-destructive testing (NDT) methods of steel tubes—Part 8: Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections