ISO/TC 85/SC 5
Nuclear installations, processes and technologies
Its scope
Standardization and promotion of good practices associated with the planning, design, construction, operation and decommissioning of installations, processes and technologies involving radioactive materials.
Nuclear installations, processes and technologies include: the Fuel Cycle including mining, ex-reactor nuclear criticality safety, analytical methodologies, transport of radioactive materials, mining, materials characterisation, radioactive waste management, decommissioning and geological disposal.
Excluded
- specific enabling technologies and techniques for non-peaceful applications;
- sealed sources, radiation processing,nuclear power plants and research reactors. The potential for a criticality accident ouside reactor cores shouls nevertheless be evaluated.
Its structure
SC 5 develops standards and tools , through its 5 working groups :
WG 1 - Analytical Methods (roadmap)
WG 4 - Transportation of radioactive material (roadmap)
key standard
ISO 7195:2020, Nuclear energy — Packagings for the transport of uranium hexafluoride (UF6)
WG 5 - Characterisation and waste management (roadmap)
report to IAEA TWG-NFCO (Nuclear Cycle Options and Spent Fuel Management) - April 2025
report to IAEA WASSC (Waste Safety Standards Committee) - July 2025
report to IAEA NSGC (Waste Safety Standards Committee) - December 2025
WG 8 - Nuclear criticality safety (roadmap)
key standards
ISO 1709:2018 + Amd1:2022, Nuclear energy — Fissile materials — Principles of criticality safety in storing, handling and processing
ISO 14943:2004, Nuclear fuel technology — Administrative criteria related to nuclear criticality safety
WG 13 - Decommissioning : decontamination, dismantling and remediation (roadmap)
For more information
More on SC 5
SC 5 page on ISO.org
Our documents
Summary of ISO 1709:2018, Nuclear energy — Fissile materials — Principles of criticality safety in storing, handling and processing
Summary of ISO 7753:2023, Nuclear criticality safety — Use of criticality accident alarm systems for operations
Summary of ISO 11311:2011, Nuclear criticality safety — Critical values for homogeneous plutonium-uranium oxide fuel mixtures outside of reactors
Summary of ISO 11320:2011, Nuclear criticality safety — Emergency preparedness and response
Summary of ISO 14943:2004, Nuclear fuel technology — Administrative criteria related to nuclear criticality safety
Summary of ISO 16117:2013, Nuclear criticality safety — Estimation of the number of fissions of a postulated criticality accident
Summary of ISO 21391:2019, Nuclear criticality safety — Geometrical dimensions for subcriticality control — Equipment and layout
Summary of ISO 22946:2020, Nuclear criticality safety — Solid waste excluding irradiated and non-irradiated nuclear fuel
Summary of ISO 23133:2020, Nuclear criticality safety — Solid waste excluding irradiated and non-irradiated nuclear fuel
Summary of ISO 27467:2009, Nuclear criticality safety — Analysis of a postulated criticality accident
Summary of ISO 27468:2011, Nuclear criticality safety — Evaluation of systems containing PWR UOX fuels — Bounding burnup credit approach
Our meetings
SC 5 : 7 to 11 June 2027 in Seoul (Korea)
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