Nuclear energy - fissile materials - principles of criticality safety in handling and processing, approved International Standard, 1975

This International Standard specifies the factors and technical criteria which form the basis on which the procedures relating to criticality safety in handling and processing fissile materials should be established. These principles apply to all operations with fissile materials outside the cores of nuclear reactors but within the boundaries of nuclear establishments. They are concerned with the limitations which must be imposed on processes and equipment because of the unique nuclear properties of these materials by which they can support nuclear chain reactions. These principles apply to quantities of fissile materials in which nuclear criticality can be established