Maintenance Periodic Testing And Inspection Of Research Reactors

This Safety Guide provides specific recommendations on the maintenance, periodic testing and inspection of research reactors to meet the relevant requirements of IAEA Safety Standards Series No. SSR-3, Safety of Research Reactors. It provides guidance on design considerations and recommends good practices in implementing the programme and establishing the organization and responsibilities for maintenance, periodic testing and inspection as well as for the selection, training and qualification of personnel. Procedures, administrative controls and maintenance facilities are also covered as well as procurement and storage of spare parts and components, and testing and inspection methods and techniques used for maintenance, periodic testing and inspection. The recommendations provided in this Safety Guide are aimed at operating organizations of research reactors, regulatory bodies and other organizations involved in a research reactor project. This Safety Guide is a revision of IAEA Safety Standards Series No. NS-G-4.2, which it supersedes.

This Safety Guide provides practical guidance on how to fulfil the requirements on research reactor safety. It covers a broad range of international practices, including preventive and corrective maintenance of structures, systems and components, periodic testing to ensure that operations remain within established operating limits and conditions, and non-routine inspections. This Safety Guide is applicable to all types of heterogeneous research reactors having a power rating of up to several tens of megawatts.

This Safety Guide is a revision of IAEA Safety Standards Series No. NS-G-4.4, which it supersedes. The revised version provides specific recommendations on developing, formulating and presenting the operational limits and conditions as well as the operating procedures for research reactors, to meet the relevant requirements of IAEA Safety Standards Series No. SSR-3, Safety of Research Reactors. The recommendations in this publication are intended for use by operating organizations of research reactors, regulatory bodies and other relevant organizations involved in a research reactor project.

Establishes requirements for all areas of the safety of research reactors, with particular emphasis on requirements for design and operation. This publication covers the lifetime of research reactor facilities, from site evaluation to design and construction, commissioning, operation, including utilization and modification, and decommissioning.

This publication presents international consensus principles useful in the operation of a research reactor. It is complemented by Safety Series No. 35-S1, Code on the Safety of Nuclear Research Reactors: Design. Both publications provide basic principles and requirements for the safety of research reactors and critical assemblies, including the essential safety requirements for siting, quality assurance and regulatory control. These codes supersede the 1984 edition of Safety Series No. 35, Safe Operation of Research Reactors and Critical Assemblies.

This Safety Guide provides practical guidance and recommendations on ageing management for research reactors, to meet the relevant requirements of IAEA Safety Standards Series No. SSR-3, Safety of Research Reactors. It is intended for use by operating organizations in establishing, implementing and improving ageing management programmes for research reactors, and by regulatory bodies in verifying that ageing of research reactors is being effectively managed. The Safety Guide focuses on managing the physical ageing of systems, structures and components important to safety, and also provides guidance on safety aspects of managing obsolescence. This Safety Guide is a revision of IAEA Safety Standards Series No. SSG-10, which it supersedes.

The objective of this publication is to state the problem of extended shutdown and its safety implications, including staff issues; review the implications of extended shutdown on reactor components and systems; and provide guidance aimed at assisting operating organisations in planning and implementing extended shutdown.