Overview
ISO 10276:2019 - "Nuclear energy - Fuel technology - Trunnion systems for packages used to transport radioactive material" - defines minimum requirements and recommendations for trunnion systems used for lifting, tilting and tie‑down of radioactive-material transport packages. This second-edition standard covers the design, manufacture, inspection, maintenance and management system for trunnions and their attachment components. It references IAEA transport guidance but does not replace national or international regulatory requirements for lifting or facility handling.
Key Topics and Technical Requirements
- Scope and terms: Definitions, symbols and relationships to IAEA documents (IAEA SSR-6 and IAEA SSG-26).
- Design: Design methodology, material selection and mechanical property considerations; design loads for assembly, tie‑down, lifting and tilting; load cycles for fatigue analysis.
- Analysis methods: Prescribed minimum criteria for analytical strength checks and finite element analysis (FEA); procedures for fatigue analysis and brittle fracture evaluation.
- Manufacture & assembly: Fabrication practices, assembly controls and dimensional tolerances.
- Inspection & testing:
- Dimensional, visual and non‑destructive examination (NDE) during manufacture and assembly.
- Chemical analyses, mechanical property testing and static testing requirements.
- Maintenance & periodic inspection: Recommended maintenance schedules, inspection intervals and detailed checks for removable and welded trunnions, attachment threads, bolts and critical feature dimensions.
- Repair & replacement: Guidance on component replacement and acceptable repair methods.
- Management system: Quality/management system requirements to ensure ongoing conformity and traceability.
Applications and Who Uses It
ISO 10276:2019 is practical for:
- Design engineers and package manufacturers developing trunnion systems for spent fuel or radioactive material transport.
- Package owners/operators setting procurement specifications and maintenance regimes.
- Regulatory authorities and independent expert organizations reviewing design and safety assessments.
- Maintenance teams and inspection service providers creating inspection plans and test procedures.
- Insurance and certification bodies needing objective technical criteria for assessments.
Use cases include preparing design documentation, specifying FEA and fatigue checks, defining NDE and testing regimes, creating maintenance schedules, and supporting regulatory submissions for package transport.
Related Standards
- IAEA SSR-6 - Regulations for the Safe Transport of Radioactive Material (normative reference)
- IAEA SSG-26 - Advisory Material for SSR-6 (normative reference)
- Note: ISO 10276:2019 replaces ISO 10276:2010 and extends the scope to trunnion attachment components.
Keywords: ISO 10276:2019, trunnion systems, transport of radioactive material, nuclear fuel, lifting and tie-down, design and manufacture, inspection and maintenance, FEA, fatigue, brittle fracture, IAEA SSR-6.