NF EN ISO 21484

NF EN ISO 21484

June 2019
Standard Current

Nuclear Energy - Fuel technology - Determination of the O/M ratio in MOX pellets by the gravimetric method

ISO 21484:2017 describes a method for determining the Oxygen-to-Metal (O/M) ratio in mixed uranium-plutonium oxide (U,Pu)O2 ± X pellets. The parameters given in the following paragraphs are relevant for pellets within a range of O/M ratio corresponding to 1,98 to 2,01. The method described in the document is adapted, with regard to the parameters, if the expected values of O/M ratio are outside the range.

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Main informations

Collections

National standards and national normative documents

Publication date

June 2019

Number of pages

14 p.

Reference

NF EN ISO 21484

ICS Codes

17.240   Radiation measurements
27.120.30   Fissile materials and nuclear fuel technology

Classification index

M60-466

Print number

1

International kinship

ISO 21484:2017

European kinship

EN ISO 21484:2019
Sumary
Nuclear Energy - Fuel technology - Determination of the O/M ratio in MOX pellets by the gravimetric method

ISO 21484:2017 describes a method for determining the Oxygen-to-Metal (O/M) ratio in mixed uranium-plutonium oxide (U,Pu)O2 ± X pellets. The parameters given in the following paragraphs are relevant for pellets within a range of O/M ratio corresponding to 1,98 to 2,01. The method described in the document is adapted, with regard to the parameters, if the expected values of O/M ratio are outside the range.

Replaced standards (1)
NF ISO 21484
January 2018
Standard Cancelled
Nuclear Energy - Fuel technology - Determination of the O/M ratio in MOX pellets by the gravimetric method

<p>ISO 21484:2017 describes a method for determining the Oxygen-to-Metal (O/M) ratio in mixed uranium-plutonium oxide (U,Pu)O<sub>2 ± <i>X</i></sub> pellets. The parameters given in the following paragraphs are relevant for pellets within a range of O/M ratio corresponding to 1,98 to 2,01. The method described in the document is adapted, with regard to the parameters, if the expected values of O/M ratio are outside the range.</p>

Table of contents
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  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Principe
  • 5 Réactions
  • 6 Réactifs et matériaux
  • 7 Appareillage
  • 8 Échantillonnage
  • 9 Mode opératoire
  • 10 Calcul
  • 11 Fidélité
  • 12 Rapport d'essai
  • Bibliographie
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