Standard Swedish standard · SS-ISO 24459:2021

Determination of uranium content in samples coming from the nuclear fuel cycle by L-absorption edge spectrometry (ISO 24459:2021, IDT)

Status: Withdrawn

· Replaced by: SS-EN ISO 24459:2023
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Standard Swedish standard · SS-ISO 24459:2021

Determination of uranium content in samples coming from the nuclear fuel cycle by L-absorption edge spectrometry (ISO 24459:2021, IDT)
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Scope
This document 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.


The 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.


Having


—    the content of neptunium and plutonium impurities in the solution less than 1 % of the uranium content.


—    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.


The method is applicable to solid samples as well, provided that they can be fully dissolved in nitric acid.

Subjects

Fissile materials (27.120.30)


Buy this standard

Standard Swedish standard · SS-ISO 24459:2021

Determination of uranium content in samples coming from the nuclear fuel cycle by L-absorption edge spectrometry (ISO 24459:2021, IDT)
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Price: 735 SEK
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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-80031657

Edition: 1

Approved: 10/12/2021

No of pages: 20

Replaced by: SS-EN ISO 24459:2023