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This study presents a method of quality category classification by safety, maturity, complexity, and what types and extent of controls and verifications are applied to specific products and services during the various stages of a nuclear facility life cycle. All products, services and processes have various controls and verifications built in to ensure they perform their functions satisfactorily. The highest grade should require the most stringent application of the quality assurance requirements ; while, the lowest grade should require the least stringent. When products or services are modified, the assigned grade of quality assurance requirements could become more stringent or less stringent depending on the significance in nuclear safety. Applying QA program always costs money, and they should be applied and focused to the extent where necessary and not applied or applied to a lesser degree for less important activities. An efficient QA program should be developed to satisfy the necessary requirements and to ensure the required confidence in quality, but without unnecessary stipulations. Not all the requirements of QA standard must be applied identically to all products and services which are to be provided.
1. 서론
2. 원자력시설의 품질보증
2.1 원자력시설의 품질보증 개념
2.2 국내 품질보증 체계
3. 현행 품질등급 분류 체계
4. 개선된 품질등급 체계
4.1 품질등급 결정 요인
4.2 품질등급화 과정
4.3 품목 및 용역의 등급분류
4.4 품질보증 등급의 선정
5. 적용사례
6. 결론
7. 참고문헌
