Document: NRC Regulatory Guide
Document ID: a1541707-8144-409c-8842-4ea7d4b8ef4e
Document Type: regulatory_guide
Title: 10/2019 (Rev. 19)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1912/ML19128A244.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.147
CFR Part: 
CFR Title: 

Content:
criteria of Section XI, the engineering evaluations and the examinations shall be further extended to include additional evaluations and examinations at this outage. N-586-1 Published on 5/4/04 N-589 Class 3 Nonmetallic Cured-in-Place Piping, Section XI, Division 1 N-589-1 Published on 7/23/02 RG 1.147, Rev. 19, Page 35 CODE CASE NUMBER TABLE 5 SECTION XI CODE CASES THAT HAVE BEEN SUPERSEDED DATE N-593 N-593-1 Alternative Examination Requirements for Steam Generator Nozzle to Vessel Welds, Section XI, Division 1 N-593-1 Published on 10/8/04 N-593-2 Published on 11/8/11 N-597 N-597-1 Requirements for Analytical Evaluation of Pipe Wall Thinning, Section XI, Division 1 N-597-1 Published on 7/7/01 N-597-2 Published on 11/18/03 N-597-2 Requirements for Analytical Evaluation of Pipe Wall Thinning, Section XI, Division 1 N-597-3 Published on 5/7/2014 (1) The Code Case must be supplemented by the provisions of EPRI Nuclear Safety Analysis Center Report 202L-R2,“Recommendations for an Effective Flow Accelerated Corrosion Program,” April 1999, for developing the inspection requirements, the method of predicting the rate of wall thickness loss, and the value of the predicted remaining wall thickness. As used in NSAC-202L-R2, the term “should” is to be applied as “shall” (i.e., a requirement). (2) Components affected by flow-accelerated corrosion to which this Code Case is applied must be repaired or replaced in accordance with the Construction Code of Record and the owner’s requirements or a later NRC-approved edition of Section III (Ref. 11), before the value of tp reaches the allowable minimum wall thickness, tmin, as specified in Figure-3622.1(a)(1) of this Code Case. Alternatively, use of the Code Case is subject to NRC review and approval under 10 CFR 50.55a(z). (3) For Class 1 piping that does not meet the criteria of Figure-3221, the use of evaluation methods and criteria is subject to NRC review and approval under 10 CFR 50.55a(z). (4) For those