SS-ISO-7097-2 › Historical Revision Information
Nuclear fuel technology - Determination of uranium in solutions, uranium hexafluoride and solids - Part 2: Iron (II) reduction/cerium (IV) oxidation titrimetric method (ISO 7097-2:2004, IDT)
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This part of ISO 7097 describes an analytical method for the determination of uranium in pure product material samples such as U metal, UO2, UO3, uranyl nitrate hexahydrate, uranium hexafluoride and U3O8 from the nuclear fuel cycle. This procedure is sufficiently accurate and precise to be used for nuclear materials accountability. This method does not generate a toxic mixed waste as does the potassium dichromate titration. The method may not be applied to scrap or waste samples until such time as it is qualified by obtaining results statistically equivalent to those obtained by the potassium dichromate method on the same sample types. The method recommends that an aliquot of sample is weighed and that a mass titration is used, in order to obtain improved precision and accuracy. This does not preclude the use of any alternative techniques which could give equivalent performance. As the performance of some steps of the method is critical, the use of some automatic device has some advantages, mainly in the case of routine analysis.
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Designation Name
SS-ISO 7097-2:2011
Revision Level
2011 EDITION
Status
Superseded
Publication Date
June 14, 2011
Language(s)
English
Page Count
28
International Equivalent
ISO 7097-2:2004(IDT)