China 'SY/T 6423.4-2013
' Industry standard english version:
SY
中华人民共和国行业标准
INDUSTRY STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
SY/T 6423.4-2013
Petroleum and natural gas industries. Non-destructive testing (NDT) methods of steel tubes. Part 4: Automated ultrasonic testing of seamless and welded steel tubes for the detection of laminar imperfections 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
Issued Date:2013-11-28
Implemented Date:2014-04-01
Issued by:
The Standardization Administration of the People's Republic of China
GB Standard Code
SY/T 6423.4-2013
Standard Category
China Oil & Gas Industry
Standards
GB Standard English Title
Petroleum and natural gas industries. Non-destructive testing (NDT) methods of steel tubes. Part 4: Automated ultrasonic testing of seamless and welded steel tubes for the detection of laminar imperfections