Document: NRC Regulatory Guide
Document ID: a4944d20-ef6e-480b-a45d-14425bedd2e5
Document Type: regulatory_guide
Title: ASME Code Cases Not Approved for Use (Rev. 8)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2219/ML22196A065.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.193
CFR Part: 
CFR Title: 

Content:
ng and characterizing fabrication flaws. Additionally, the PNNL research suggests that the ability to consistently and accurately characterize fabrication flaws by type (i.e., planar or volumetric) is difficult. This capability is essential if acceptance criteria based on flaw type is to be applied. In summary, the NRC believes that an analytical approach for the acceptance of certain fabrication flaws could be acceptable if appropriately justified and the scope limited to ferritic materials. The NRC believes that significant research will be required to demonstrate that full-volume examination for fabrication flaws is acceptable for austenitic and dissimilar metal welds. 12/6/11 N-828 Alternative Nonmetallic Material Manufacturer’s and Constituent Suppliers Quality System Program Requirements, Section III, NCA-3900, 2010 Edition, and Earlier Editions and Addenda, Section III, Divisions 1 and 2 Code Case N-828 was developed to support new nuclear plant construction. The NRC plans to address this Code Case in RG 1.136, “Design Limits, Loading Combinations, Materials, Construction, and Testing of Concrete Containments.” 4/27/12 Annulled 2/11/16 DG-1408, Page 29 5. Annulled/Superseded Unacceptable Section XI Code Cases The NRC had previously determined that the Code Cases listed in Table 5 were unacceptable for use by licensees in their Section XI inservice inspection programs. These Code Cases have since been annulled by ASME or superseded by revised Code Cases. Table 5. Annulled/Superseded Unacceptable Section XI Code Cases CODE CASE NUMBER TABLE 5 ANNULLED OR SUPERSEDED UNACCEPTABLE SECTION XI CODE CASES ANNULLMENT OR REVISION DATE N-465 N-465-1 Alternative Rules for Pump Testing, Section XI, Division 1 The draft standard referenced in the Code Case is outdated. The requirements contained in the OM Code should be used. 11/30/88 Annulled 2/14/03 N-473 N-473-1 Alternative Rules for Valve Testing, Section XI, Division 1 The draft standard referenced in the Code