ISO 11311:2011/Amd 1:2022

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ISO 11311:2011/Amd 1:2022 is an International Standard (ISO) that focuses on nuclear criticality safety. Specifically, it deals with critical values for homogeneous plutonium-uranium oxide fuel mixtures outside of reactors, and it includes an Amendment 1 published in 2022. In essence, it defines the limits for these fuel mixtures to prevent uncontrolled nuclear reactions, which are crucial for safe handling and storage of nuclear materials.