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EVS-EN ISO 16795:2025

Nuclear energy - Determination of Gd2O3 content in pellets containing uranium oxide by X-ray fluorescence spectrometry (ISO 16795:2024)

General information

Valid from 01.09.2025
Base Documents
ISO 16795:2024; EN ISO 16795:2025
Directives or regulations
None

Standard history

Status
Date
Type
Name
01.09.2025
Main
This document specifies a method which covers the determination of Gd2O3 content in UO2 fuel pellets, by X-ray fluorescence spectrometry.
Either wave dispersion X-ray fluorescence (WD-XRF) or energy dispersion X-ray fluorescence (ED-XRF) is applicable, however, this document states a method by using WD-XRF using Gd Lα-line.
This method has been tested for mass fractions of from 2 % to 10 % Gd2O3.

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