EN ISO 15366-1:2016 PDF

Scope: This part of ISO 15366 describes methods for the chemical separation and purification of uranium and plutonium in solutions of irradiated light water reactor fuels and samples of high-level liquid waste from fuel reprocessing plants, before isotope analysis, e.g. B. is carried out by mass spectrometry (see ISO 8299) or alpha spectrometry methods (see ISO 11483). This part of ISO 15366 describes a method for the separation of uranium and plutonium in spent fuel samples based on a chromatographic method. The method is applicable to samples containing 1 µg to 150 µg Pu(IV) and -(VI) and 0.1 mg to 2 mg U(IV) and -(VI) in up to 2 ml nitric acid solution, 3 mol -l-1. It can be used for uranium-plutonium mixtures whose mixing ratio U:Pu can be from 0 to 200.

EN ISO 15366-1:2016 Referenced Document

ISO 11483:2005 Nuclear fuel technology - Preparation of plutonium sources and determination of <(hoch)238>Pu/<(hoch)239>Pu isotope ratio by alpha spectrometry
ISO 8299:2005 Nuclear fuel technology - Determination of the isotopic and elemental uranium and plutonium concentrations of nuclear materials in nitric acid solutions by thermal-ionization mass spectrometry

2016 EN ISO 15366-1:2016 Nuclear fuel technology - Chemical separation and purification of uranium and plutonium in nitric acid solutions for isotopic and isotopic dilution analysis by solvent extraction chromatography - Part 1: Samples containing plutonium in the microgram range