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STANDARD 13168
Second edition
2023-11
Water quality — Simultaneous
determination of tritium and carbon
14 activities — Test method using
liquid scintillation counting
Qualité de l'eau — Détermination simultanée des activités volumiques
du tritium et du carbone 14 — Méthode par comptage des
scintillations en milieu liquide
Reference number
ISO 13168:2023(E)
© ISO 2023
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ISO 13168:2023(E)
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© ISO 2023
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Published in Switzerland
ii
© ISO 2023 – All rights reserved
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ISO 13168:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 2
3.1 Terms and definitions . 2
3.2 Symbols . 2
4 Principle . 3
5 Sampling and storage . 4
5.1 Sampling . 4
5.2 Sample storage . 5
6 Reagents and equipment . 5
6.1 Reagents . 5
6.1.1 Water for blank sample . 5
6.1.2 Calibration source solutions . 5
6.1.3 Scintillation solution . 6
6.1.4 Quenching agent . 6
6.2 Equipment . 6
7 Procedure .
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