Document: NUREG-0800
Document ID: 91fee075-c567-438d-bf9f-47be3177b457
Document Type: srp
Title: ENGINEERED SAFETY FEATURES MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070453.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.1.1
CFR Part: 
CFR Title: 

Content:
is assumed to follow the same characteristics as in PWRs in that the rates of hydrogen generation will rise with increasing zinc corrosion as the temperature rises, and will change with any change in pH. 23. Component and Systems Cleaning 62 To meet the requirements of Appendix B to 10 CFR Part 50, measures should be established to control the cleaning of material and equipment in accordance with work and inspection instructions to prevent damage or deterioration. 6.1.1-9 DRAFT Rev. 2 - April 1996 Components and systems are to be cleaned in conformance with the positions of Regulatory Guide 1.37., "Quality Assurance Requirements for Cleaning Fluid Systems and Associated Components of Water Cooled Nuclear Power Plants."63 34. Thermal Insulation 64 To meet the requirements of General Design Criteria 1, 14, and 31 so that the reactor coolant pressure boundary is designed, fabricated, erected, and tested so as to have extremely low probability of abnormal leakage, of rapidly propagating failure, and gross rupture, the following guidelines should be used: a. The composition of nonmetallic thermal insulation for components of ESF should be controlled as described in Regulatory Guide 1.36., "Nonmetallic Thermal Insulation for Austenitic Stainless Steel."65 b. The use of nonmetallic insulation on nonaustenitic stainless steel components should be controlled as above. The moisture dripping from wet insulation on any component can affect austenitic stainless steel that is at a physically lower elevation. c. Concentrations of leachable contaminants and added inhibitors should be controlled as specified in position C.2.b and Figure 1 of Regulatory Guide 1.36 to reduce the probability of stress corrosion cracking of austenitic stainless steel components. 4. Coatings Appendix B to 10 CFR Part 50, "Quality Assurance Criteria for Nuclear Power Plants and Fuel Processing Plants," establishes overall quality assurance program requirements for the design, fabrication, construction,