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:
tion summary report must be submitted within 90 calendar days of the completion of each refueling outage. 12/29/05 N-795 Alternative Requirements for BWR Class 1 System Leakage Test Pressure Following Repair/Replacement Activities, Section XI, Division 1 (1) The use of nuclear heat to conduct the BWR Class 1 system leakage test is prohibited (i.e., the reactor must be in a noncritical state), except during refueling outages in which the ASME Section XI Category B-P pressure test has already been performed or at the end of midcycle maintenance outages 14 days or less in duration. (2) The test condition holding time, after pressurization to test conditions and before the visual examinations commence, shall be 1 hour for noninsulated components. 9/17/10 N-799 Dissimilar Metal Welds Joining Vessel Nozzles to Components, Section XI, Division 1 (1) Ultrasonic examination procedures, equipment, and personnel shall be qualified by performance demonstration in accordance with Section XI, Appendix VIII, Supplement 10. When applying the examination requirements of Figure IWB-2500-8, the examination volume shall be extended to include 100 percent of the weld. (2) Examination requirements of Section XI, Mandatory Appendix I, Paragraph I-3200(c), must be applied. (3) Ultrasonic depth and sizing qualifications for cast austenitic stainless steel components must follow Appendix VIII, Supplement 10, using representative cast austenitic stainless steel mockups containing representative cracks and be independent of other Supplement 10 qualifications. (4) Cracks detected and not depth sized to Appendix VIII type performance-based procedures, equipment, and personnel qualifications shall be repaired or removed. 12/20/10 N-824 Ultrasonic Examination of Cast Austenitic Piping Welds From the Outside Surface, Section XI, Division 1 (1) Instead of Paragraph 1(c)(1)(–c)(–2), licensees shall use a search unit with a center frequency of 500 kHz with a tolerance of plus or minus 20 percent