ISO 13169:2018

Published (Edition 1, 2018)

ISO 13169:2018

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Abstract

This document specifies the measurement method for the determination of total activity concentration of uranium isotopes in non-saline waters by extraction and liquid scintillation counting.

This method covers the measurement of soluble uranium isotopes in water in activity concentrations between approximately 2·10⁻³ Bq/kg and 10 Bq/kg when analysing a 1 l test sample volume with a 60 000 s counting time with a typical alpha LSC instrument.

The ratio ²³⁴U/²³⁸U can also be determined. This method has not been tested for the measurement of other uranium isotopes.

General information

Status
: Published

Publication date
: 2018-07

Stage
: International Standard to be revised [90.92]
Edition
: 1

Number of pages
: 14
Technical Committee :
ISO/TC 147/SC 3

ICS :
17.240 13.060.60
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