material balance area
an area such that:
(i) the quantity of nuclear material in each transfer into or out of each material balance area can be determined ; and
(ii) the physical inventory of nuclear material in each material balance area can be determined when necessary in accordance with specified procedures, in order that the material balance may be established, materjaliartiklid, mille kohta koostatakse nn tuumamaterjali(de) bilanss
