British Standards Institution

Source:: ISO
Committee:: NCE/9 - Nuclear Installations, Processes & Technologies
Categories:: Information management | Standardization. General rules | Engineering | Energy and heat transfer engineering | Nuclear energy engineering | Fissile materials and nuclear fuel technology

Scope

This international standard specifies a method for the determination of uranium(VI) concentrations in TBP-aliphatic diluents (for example TBP-kerosene or TBP-n-dodecane) coming from the nuclear fuel cycle.The method is applicable for the analysis of samples containing 5 g/l to 100 g/l uranium(VI). The concentration of plutonium in the solution should be less than 1.5 g/l to ensure the absence of significant interferences.

Purpose

In the process of uranium mining, milling, purification and convertion, qualified uranium products are usually obtained by extraction method. The PUREX process of spent fuel reprocessing is also achieved by TBP extraction method for the separation of uranium and plutonium and purification of uranium products. Therefore, the rapid and accurate analysis of the concentration of uranium(VI) in the organic phase is of great significance for ensuring the normal operation of the extraction process, improving the process and evaluating the operation effect.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

08/08/2023

Proposal end date:

30/09/2023

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

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Standards Development

ISO/NP 23682 Determination of uranium(VI) in TBP-aliphatic diluents -- Raman spectrometry

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