Literature cited
OST 26-291-79. Welded Steel Vessels and Apparatus. Technical Requirements (1980).
Norm N444-65. Components and Sections of Vessels and Apparatus, Nozzles, Trap Doors, Connecting Pipes (1964).
RD 38.18.002-83, Instructions for Ultrasonic Inspection of Welded Joints in Processing Plant (1984).
Procedure Instructions for Ultrasonic Inspection of Equipment Using USK-6 Flaw Detector (1984).
Additional information
Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 12, pp. 22–24, December, 1986.
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Kirilichev, N.V., Bzaev, S.K., Pilin, B.P. et al. Welding nozzles into thick-walled shells of plant of carbon steels in repair. Chem Petrol Eng 22, 618–620 (1986). https://doi.org/10.1007/BF01148709
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DOI: https://doi.org/10.1007/BF01148709