SY/T 6423.6-2014
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
Methods for non-destructive testing of steel pipes in the oil and gas industry Part 6: Full-circumference automatic magnetic flux leakage detection of longitudinal and/or transverse defects in seamless and welded (except submerged arc welding) ferromagnet
SYT6423.6-2014, SY6423.6-2014