Russian standards PDF

Seamless and welded steel tubes. Liquid penetrant inspection for the detection of surface imperfections

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Seamless and welded steel tubes. Part 5. Magnetic particle inspection of ferromagnetic tubes for the detection of surface imperfections

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Seamless and welded steel tubes. Part 6. Radiographic testing for the detection of imperfections of the weld seam

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Seamless and welded steel tubes. Part 7. Digital radiographic testing of the weld seam for the detection of imperfections

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Seamless and welded steel tubes. Part 8. Automated ultrasonic testing for the detection of imperfections

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Seamless and welded steel tubes. Part 9. Automated ultrasonic testing for the detection of imperfections in strip/plate used for the manufacture of welded steel tubes

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