Document: NUREG-0800
Document ID: f5fcd424-bea6-4f79-b002-f91d93dd4c9e
Document Type: srp
Title: QUALITY ASSURANCE PROGRAM DESCRIPTION - DESIGN CERTIFICATION,
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190019.pdf
Revision Date: 2023-06
Chapter: 17
Section ID: 17.5
CFR Part: 
CFR Title: 

Content:
design reviews answer the following questions: (NQA-1) (1) Were the design inputs correctly selected? (2) Are assumptions necessary to perform the design activity adequately described and reasonable? Are the assumptions adequately identified to enable subsequent reverifications after detailed design activities are completed? 17.5-12 March 2007 (3) Was an appropriate design method used? (4) Were the design inputs correctly incorporated into the design? (5) Are the necessary design inputs and verification requirements for interfacing organizations specified in the design documents or in supporting procedures or instructions? (6) Is the design output reasonable compared to the inputs? c. Alternate calculations are calculations or analyses that are made with alternate methods to verify correctness of the original calculations or analyses. The appropriateness of assumptions, input data used, and the computer program or other calculation method used are reviewed. (NQA-1) d. Where design adequacy is verified by qualification tests, the tests are identified. The test configuration is clearly defined and documented. Testing demonstrates the adequacy of performance under conditions that simulate the most adverse design conditions. Operating modes and environmental conditions in which the item must perform satisfactorily are considered in determining the most adverse conditions. Where the test is intended to verify only specific design features, the other features of the design are verified by other means. Test results are documented and evaluated by the responsible design organization to ensure that test requirements have been met. If qualification testing indicates that modifications to the item are necessary to obtain acceptable performance, the modification is documented and the item modified and retested or otherwise verified to ensure satisfactory performance. When tests are being performed on models or mockups, scaling laws are required to be established and verified.