Document: NUREG-0800
Document ID: bf62536e-58c7-4cb0-a51f-5c5ce2c21d6b
Document Type: srp
Title: DRAFT Rev. 2 - April
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070423.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.3.2.9
CFR Part: 
CFR Title: 

Content:
ance levels of paragraph 70 IV.A.3 of Appendix G to 10 CFR Part 50 must be met as detailed in paragraph 71 NB-2333 of Section III of the Code. c. Surface treatments, plating, or thread lubricants used must be shown to be compatible with the materials, and stable at operating temperatures. d. Nondestructive examination should be performed according to Section III of the Code, subarticle NB-2580, and including additional recommendations given in Regulatory Position C.2 of Regulatory Guide 1.65. 5.3.1-11 DRAFT Rev. 2 - April 1996 Technical Rationale:72 The technical rationale for application of the above acceptance criteria to reactor vessel materials is discussed in the following paragraphs. 1. General Design Criteria (GDC) 1 and 30 and 10 CFR 50.55a, establish quality assurance requirements for the design, fabrication, erection, and testing of structures, systems and components (SSC) important to safety. GDC 1 and 10 CFR 50.55a establish that the quality assurance standards to be applied to SSC shall be commensurate with the importance of the safety functions to be performed and will be established and implemented through the development of a quality assurance program. 10 CFR 50.55a also incorporates by reference applicable editions and addenda of the ASME Boiler and Pressure Vessel Code. GDC 30 establishes that reactor coolant pressure boundary (RCPB) components shall meet the highest quality standards practical. The safety functions of the reactor vessel are to provide 1) a support structure for the internal reactor components, 2) reactor coolant confinement as part of the reactor coolant flow path, and 3) a containment barrier to the release of fission products as part of the RCPB. Regulatory Guides 1.31, 1.34, 1.43, 1.44, 1.50, and 1.65 provide regulatory positions applicable to compliance with GDCs 1 and 30. Compliance with GDCs 1 and 30, 10 CFR 50.55a, and the positions of the Regulatory Guides, provides assurance that the reactor vessel will be designed,