What is ISO 24459 about?
ISO 24459 specifies a method for the determination of uranium concentrations in nitric acid or TBP-DILUANT (for example TBP-kerosene) solutions coming from the nuclear fuel cycle.
ISO 24459 method is applicable:
- For process control of solutions, free of suspension, which contain between 10 g/l to 300 g/l uranium, and
- For high accuracy purposes (Safeguards) to nitric acid solutions, free of suspension, which contain between 100 g/l and 220 g/l uranium.
- To the content of neptunium and plutonium impurities in the solution less than 1 % of the uranium content.
- To the content of neutron poisons (gadolinium, erbium) less than 1 % of the uranium content to ensure the absence of significant interferences at the level of required precision, for high accuracy purposes.
- To solid samples as well, provided that they can be fully dissolved in nitric acid.
Who is ISO 24459 for?
ISO 24459 on determination of uranium content in samples coming from the nuclear fuel cycle is relevant to:
- Nuclear power plants
- Regulatory authorities dealing with nuclear plants and fuel
- Companies dealing with nuclear fuel systems
Why should you use ISO 24459?
TBP-DILUANT (tributyl phosphate) is best suited for solvent extraction system for uranium. As TBP gives simpler, more efficient method of separation of uranium from trace metal. Thus, ISO 24459 helps you determine the uranium content in coming from the nuclear fuel cycle with more reliable results. ISO 24459 enables you to determine uranium concentrations in nitric acid with higher accuracy and precision.