EN ISO 15651:2017

Nuclear energy - Determination of total hydrogen content in PuO2 and UO2 powders and UO2, (U,Gd)O2 and (U,Pu)O2 sintered pellets - Inert gas extraction and conductivity detection method (ISO 15651:2015)

Publication date:   May 17, 2018

General information

60.60 Standard published   Oct 11, 2017


CEN/TC 430 Nuclear energy, nuclear technologies, and radiological protection

European Norm

27.120.30   Fissile materials and nuclear fuel technology



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ISO 15651:2015 describes a procedure for measuring the total hydrogen content of UO2 and PuO2 powders (up to 2 000 µg/g oxide) and of U02 and (U,Gd)O2 and (U,Pu)O2 pellets (up to 10 µg/g oxide). The total hydrogen content results from adsorbed water, water of crystallization, hydro-carbon, and other hydrogenated compounds which can exist as impurities in the fuel.

Life cycle


EN ISO 15651:2017
60.60 Standard published
Oct 11, 2017


Adopted from ISO 15651:2015 IDENTICAL