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

Current stage: 90.60 Effective date: Jun 4, 2020

Originator: ISO

Owner: ISO/TC 85/SC 5

Type: International Standard

ICS: 27.120.30

Languages: English French

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Status: Published

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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
90.60 Close of review
Jun 4, 2020

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