Reference number
ISO 9161:2019
© ISO 2025
International Standard
ISO 9161:2019
Uranium dioxide powder — Determination of apparent density and tap density
Edition 2
2019-02
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Published (Edition 2, 2019)
This publication was last reviewed and confirmed in 2024. Therefore this version remains current.

ISO 9161:2019

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CHF 65
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Abstract

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.

General information

  • Status
     : Published
    Publication date
     : 2019-02
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 2
    Number of pages
     : 7
  • Technical Committee :
    ISO/TC 85/SC 5
    ICS :
    27.120.30 
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