What is ISO 21391- Geometrical dimensions for subcriticality control about?
ISO 21391 is an International Standard on nuclear criticality safety.
ISO 21391 provides guidance, requirements and recommendations related to determination of limits on subcriticality dimensions and ensuring compliance with:
Geometrical dimensions specified in the design (design dimensions)
Actual dimensions
ISO 21391 is applicable to nuclear facilities containing fissile materials, except nuclear power reactor cores. ISO 21391 can also be applied to the tran...