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:
viewer verifies that the controls of ferritic steel welding are in conformance with subsection II.A.1.b of this SRP section. The reviewer verifies that the fracture 84 toughness of the materials is in accordance with the requirements of the Code. B. Secondary Review AreaProcess Fluids and Compatibility85 1. Composition and Compatibility of Engineered Safety Features Fluids The reviewer (CMEB) considers the composition of the spray solutions and any mixing 86 processes that might occur during operation of the sprays. DRAFT Rev. 2 - April 1996 6.1.1-14 The reviewer (CMEB) examines the information on the compatibility of the ESF 87 materials of construction with the ESF fluids to verify that all materials used are compatible. The reviewer (CMEB) verifies that components and systems are cleaned in accordance 88 with Regulatory Guide 1.37. The reviewer (CMEB) determines whether non-metallic thermal insulation will be used 89 on components of the ESF, and if it is, the reviewer verifies that the amount of leachable impurities in the specified insulation will be within the "acceptable analysis area" of Figure 1 of Regulatory Guide 1.36, as discussed in subsection II.B.34 of this SRP 90 section. The reviewer (CMEB) verifies that the coatings used in the containment conform with Regulatory Guide 1.54.91 a. Pressurized Water Reactors (PWRs) The reviewer determines that the coolant spray will have a minimum pH of 7.0 and reviews the methods of ascertaining that the pH will remain above this minimum during the operation of the sprays. The reviewer examines the control of pH of such coolants to evaluate the short-term (during the mixing process) compatibility and long-term compatibility of these sprays with all safety-related components within the containment. The reviewer examines the methods of storing the ESF fluids to determine whether deterioration will occur either by chemical instability or by corrosive attack on the storage vessel. The reviewer determines what effects