SY/T 6423.2-2013
石油天然氣工業鋼管無損檢測方法第 2部分:焊接鋼管焊縫縱向和/或橫向缺欠的自動超聲檢測
Petroleum and natural gas industries.Non-destructive testing (NDT) methods of steel tubes.Part 2: Automated ultrasonic testing of the weld seam of welded steel tubes for the detection of longitudinal and/or transverse imperfections
SYT6423.2-2013, SY6423.2-2013