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Nondestructive Inspection of Pressure-Bearing Equipment in China

[+] Author Affiliations
Rong Yuan, Xuedong Chen, Weihe Guan

Hefei General Machinery Research Institute, Hefei, China

Paper No. PVP2008-61448, pp. 469-472; 4 pages
doi:10.1115/PVP2008-61448
From:
  • ASME 2008 Pressure Vessels and Piping Conference
  • Volume 1: Codes and Standards
  • Chicago, Illinois, USA, July 27–31, 2008
  • Conference Sponsors: Pressure Vessels and Piping
  • ISBN: 978-0-7918-4824-1 | eISBN: 0-7918-3828-5
  • Copyright © 2008 by ASME

abstract

JB4730-94 “nondestructive inspection of pressure vessels” is a mandatory backbone standard for Chinese pressure equipment sector. However, several problems have also been found in the course of its implementation. Chinese government decided to make revision to JB4730 standard and officially promulgated JB/T4730-2005 “Nondestructive inspection of pressure equipment” in July 2005 and published its English version at the same time. The new standard has made significant modification based on 94 edition, it extends the scope of application to the entire category of pressure equipment, the standard covers such five conventional NDT techniques as RT, UT, MT, PT and eddy-current inspection, adds the content of the types of defects (point defect, surface defect) determined by UT, and UT of austenitic stainless steel welds is also included. As the major drafting unit of the standard, in this paper the modification condition, modification content and modification reason of this standard are exhaustively introduced, which provides certain help and guidance in learning the development and present situation of NDT techniques of Chinese pressure equipment sector. Exhaustive introduction provides certain help and guidance for learning the development and present situation of NDT technology of Chinese pressure-bearing equipment sector.

Copyright © 2008 by ASME

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