# ISO 10981:1993 — Withdrawn and superseded ISO standards

For ISO 10981:1993, item title is Determination of uranium in reprocessing plants dissolver solution — Liquid chromatography method; status code is 9599; successor is ISO 10981:2004; withdrawn / published date is 1993-06-10, recorded from its source on 2026-08-05.

- **Identifier:** ISO 10981:1993 _(verified: appears in the quote below)_
- **Item title:** Determination of uranium in reprocessing plants dissolver solution — Liquid chromatography method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 10981:2004
- **Withdrawn / published date:** 1993-06-10 _(verified: appears in the quote below)_

## What the source says

> 18950,IS,,ISO 10981:1993,Determination of uranium in reprocessing plants dissolver solution — Liquid chromatography method,Dosage de l'uranium dans les solutions de dissolution des usines de retraitement — Méthode par chromatographie en phase liquide,1993-06-10,1,['27.120.30'],ISO/TC 85/SC 5,9599,,[34542],"['en','fr']",6,"<p>The principle of the method specified is diluting the sample in aqueous ascorbic acid solution until the amount of free acid of the nitric solution injected into the chromatograph is lower than 0,1 mol/l in HNO<sub>3</sub>, performing ion-pair partition chromatography, detecting the elution of uranium by UV spectrophotometry at a wavelength of 254 nm, measuring the peak

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).