Norme NBN EN ISO 12799:2019
Énergie nucléaire - Dosage de la teneur en azote des pastilles frittées d'UO2, (U,Gd)O2 et (U,Pu)O2 - Méthode d'extraction par gaz inerte et méthode de mesurage de la conductivité (ISO 12799:2015)
Statut
:
Active
Date de publication
:
7/2019
Langues
:
EN/FR
ICS
:
27.120.30 Matériaux fissiles
Sommaire :
ISO 12799:2015 describes a procedure for measuring the nitrogen content of UO2, (U,G
d)O2, and (U,P
u)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 nitride
s).
d)O2, and (U,P
u)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 nitride
s).