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:
m under which the performance characteristics have been shown to be sufficient and reliable. Furthermore, the qualification specimens do not specify an adequate number of flaws required for the sample set, the required flaw distribution 6/9/08 DG-1408, Page 26 CODE CASE NUMBER TABLE 4 ANNULLED OR SUPERSEDED UNACCEPTABLE SECTION III CODE CASE ANNULLMENT / REVISION DATE within the specimen, or the required size distribution within the specimen. Therefore, performance demonstration requirements, including acceptance criteria for UT equipment, procedures, and personnel used for construction/fabrication activities, must be addressed. Until studies are complete that demonstrate the ability of UT to replace RT for fabrication/construction, the NRC will not endorse UT in lieu of RT Code Cases or generically allow the substitution of UT in lieu of RT for fabrication/construction examinations. N-670 Use of Ductile Cast Iron Conforming to ASTM A 874/A 874M-98 or JIS G5504-1992 for Transport Containments, Section III, Division 3 The NRC has not yet endorsed Section III, Division 3. Therefore, it would not be appropriate to approve a Code Case that is an alternative to the Section III, Division 3, provisions. 7/1/05 Annulled 5/9/16 N-693 Alternative Method to the Requirements of NB-3228.6 for Analyzing Piping Subjected to Reversing Dynamic Load, Section III, Division 1 The Code Case would permit the use of the design, service, and test limits in Paragraph NB-3656(b), for Level D Service Limits. The limits in Paragraph NB-3656(b) are prohibited under 10 CFR 50.55a(b)(1)(iii). 5/21/03 Annulled 1/26/09 N-707 N-707-1 Use of SA-537, Class 1, Plate Material for Spent Fuel Containment Internals in Non pressure Retaining Applications Above 700°F (370°C), Section III, Division 3 The NRC has not yet endorsed Section III, Division 3. Thus, it would not be appropriate to approve an Code Case that is an alternative to the provisions in Section III, Division 3. 11/2/04 1/11/21 N-717