90.20 Standard under periodical review Jan 15, 2024
ISO
ISO/TC 85/SC 5 Nuclear installations, processes and technologies
International Standard
27.120.30 Fissile materials and nuclear fuel technology
Published
This document specifies a method for the determination of the isotopic and elemental uranium and plutonium concentrations of nuclear materials in nitric acid solutions by thermal-ionization mass spectrometry.
The method applies to uranium and plutonium isotope composition and concentration measurement of irradiated Magnox and light water reactor fuels (boiling water reactor or pressurized water reactor), in final products at spent-fuel reprocessing plants, and in feed and products of MOX and uranium fuel fabrication. The method is applicable to other fuels, but the chemical separation and spike solution are, if necessary, adapted to suit each type of fuel.
WITHDRAWN
ISO 8299:2005
PUBLISHED
ISO 8299:2019
90.20
Standard under periodical review
Jan 15, 2024