EN ISO 15366-2:2016 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 separation process that differs slightly from that of ISO 15366-1; it is based on the same chemical principles, but uses narrower columns, different support materials and special purification steps; The method is applicable to samples containing plutonium and uranium in the nanogram range and below. The detection limits are 500 pg plutonium and 500 pg uranium. Appendix A describes the preparation of the columns and column support material. In contrast to ISO 15366-1, due to the small amounts of uranium and plutonium, additional cleaning is carried out on an anion exchange resin.

EN ISO 15366-2:2016 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 15366-2:2016 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 2: Samples containing plutonium and uranium in the nan