标准编号：SY/T 6423.4-2013
中文名称：石油天然气工业 钢管无损检测方法 第4部分：无缝和焊接钢管分层缺欠的自动超声检测
英文名称：Petroleum and natural gas industries—Non-destructive testing(NDT) methods of steel tubes—Part4:Automated ultrasonic testing of seamless and welded steel tubes for the detection of laminar imperfections