Document: NRC Regulatory Guide
Document ID: a85f80f8-a5b4-4f0a-84fd-1eb04d49dd57
Document Type: regulatory_guide
Title: Service Level I, II, and III Protective Coatings Applied to Nuclear Power Plants + HISTORY - HISTORY 08/2016 – DG-1331 , Proposed Revision 3 10/2015 – Periodic Review of Revision 2 – Revise 10/2010 – Periodic Review of Revision 1 – No issues identified 04/2010 – DG-1242 , Proposed Revision 2 03/1999 – DG-1076 , Proposed Revision 1 (Rev. 3)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1609/ML16097A448.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.54
CFR Part: 
CFR Title: 

Content:
ce that the NRC staff finds acceptable for managing nonconforming coatings within the Service Level I areas of a NPP. 5.0 Additional Information 5.1 Electric Power Research Institute (EPRI) Report No. 1019157, “Guideline on Nuclear Safety-Related Coatings,” Revision 2, issued December 2009 (formerly EPRI Topical Report Nos. 109937 and 1003102), (Ref. 38) provides additional information on the selection, application, inspection, and maintenance of safety-related protective coatings applied to NPPs. EPRI Report No. 1019157 discusses, in detail, the important considerations related to protective coatings and can be used to supplement the ASTM International standards as deemed necessary. The NRC staff approves the use of EPRI Report No. 1019157 with the exception of Section 3.4.2, which discusses the application of specialized coatings for restoring the structural integrity of a component. The NRC staff does not approve the use of specialized coatings for restoring structural integrity. 5.2 Thermal conductivity is a material property of a coating system that is used in evaluating NPP containment performance. In particular, it is used in calculations of containment peak temperature and pressure for accident analyses. The applicable regulatory requirements and guidance used to evaluate NPP containment performance can be found in the following: • 10 CFR Part 50.46, “Acceptance Criteria for Emergency Core Cooling Systems for Light-Water Nuclear Power Reactors”; • 10 CFR Part 50, Appendix A, GDCs 38 and 50; • 10 CFR Part 50, Appendix K; and • NUREG-0800, “Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR Edition,” (Ref. 39) Sections 6.1.2, 6.2.1, 6.2.1.1.A, 6.2.1.1.C, and 6.2.1.5. EPRI Report No. 1019157 provides further discussion on the significance of thermal conductivity of coating systems. ASTM D 5144-08ε1 lists test methods for determining thermal conductivity of a coating and a table of thermal