EN ISO 9161:2021

Uranium dioxide powder - Determination of apparent density and tap density (ISO 9161:2019)

Publication date:   Jul 15, 2021

General information

60.60 Standard published   Feb 10, 2021

CEN

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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Scope

This document specifies a method of determining the apparent density and tap density of free-flowing uranium dioxide (UO2) powder which will be used for pelleting and sintering of UO2 pellets as a nuclear fuel.
This method can be used for different UO2 powder types including grains, granules, spheres or other kinds of particles. The method can also be applied to other fuel powders as PuO2, ThO2 and powder mixtures as UO2-PuO2 and UO2-Gd2O3.
This document is based on the principle of using a flowmeter funnel (see 4.1). Other measurement apparatus, such as a Scott volumeter, can also be used.

Life cycle

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PUBLISHED
EN ISO 9161:2021
60.60 Standard published
Feb 10, 2021

Relations

Adopted from ISO 9161:2019 IDENTICAL