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ISO 12799:2015

Nuclear energy — Determination of nitrogen content in UO2, (U,Gd)O2 and (U,Pu)O2 sintered pellets — Inert gas extraction and conductivity detection method

Publication date:   Mar 13, 2015

General information

90.93 Standard confirmed   Jul 15, 2022

ISO

ISO/TC 85/SC 5 Nuclear installations, processes and technologies

International Standard

27.120.30   Fissile materials and nuclear fuel technology

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Scope

ISO 12799:2015 describes a procedure for measuring the nitrogen content of UO2, (U,Gd)O2, and (U,Pu)O2 pellets. Nitrogen in nuclear fuel may be present either as elemental nitrogen or chemically combined in the form of nitrogenous compounds. The technique described herein serves to determine the total content of nitrogen excluding those compounds whose decomposition temperature is above 2 200 °C (most notably Pu and U nitrides).

Life cycle

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PUBLISHED
ISO 12799:2015
90.93 Standard confirmed
Jul 15, 2022