SY 6423.5-2014 Methods of non-destructive testing of steel pipes for the oil and gas industry - Part 5: Digital radiographic inspection of welded seam imperfections in welded steel pipes (English Version)
1970SY 6423.5-2014 Methods of non-destructive testing of steel pipes for the oil and gas industry - Part 5: Digital radiographic inspection of welded seam imperfections in welded steel pipes