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ISO 9698:2019

(Main)

Water quality — Tritium — Test method using liquid scintillation counting

Water quality — Tritium — Test method using liquid scintillation counting

This document specifies a method by liquid scintillation counting for the determination of tritium activity concentration in samples of marine waters, surface waters, ground waters, rain waters, drinking waters or of tritiated water ([3H]H2O) in effluents. The method is not directly applicable to the analysis of organically bound tritium; its determination requires additional chemical processing of the sample (such as chemical oxidation or combustion). With suitable technical conditions, the detection limit may be as low as 1 Bq·l−1. Tritium activity concentrations below 106 Bq·l−1 can be determined without any sample dilution.

Qualité de l'eau — Tritium — Méthode d'essai par comptage des scintillations en milieu liquide

Le présent document spécifie une méthode de détermination de l'activité volumique du tritium dans des échantillons d'eaux de mer, de surface, souterraines et pluviales, d'eaux potables ou d'eau tritiée ([3H]H2O) dans les effluents par comptage des scintillations en milieu liquide. Cette méthode n'est pas directement applicable à l'analyse du tritium organiquement lié; sa détermination nécessite un traitement chimique supplémentaire de l'échantillon (tel une oxydation chimique ou une combustion). Dans les conditions techniques adéquates, la limite de détection peut être réduite à 1 Bq·l−1. Les activités volumiques du tritium inférieures à 106 Bq·l−1 peuvent être déterminées sans dilution de l'échantillon.

General Information

Status
Published
Publication Date
29-Apr-2019
ICS
13.060.60 - Examination of physical properties of water
13.280 - Radiation protection
Technical Committee
ISO/TC 147/SC 3 - Radioactivity measurements
Drafting Committee
ISO/TC 147/SC 3 - Radioactivity measurements
Current Stage
9060 - Close of review
Start Date
02-Sep-2029
Ref Project

Relations

Consolidates
ISO 18844:2017 - Photography — Digital cameras — Image flare measurement
Effective Date
06-Jun-2022
Consolidated By
ISO 3262-19:2021 - Extenders — Specifications and methods of test — Part 19: Precipitated silica
Effective Date
06-Jun-2022
Revises
ISO 9698:2010 - Water quality — Determination of tritium activity concentration — Liquid scintillation counting method
Effective Date
05-Nov-2015

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Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 9698
Third edition
2019-05
Water quality — Tritium — Test
method using liquid scintillation
counting
Qualité de l'eau — Tritium — Méthode d'essai par comptage des
scintillations en milieu liquide
Reference number
ISO 9698:2019(E)
©
ISO 2019

---------------------- Page: 1 ----------------------
ISO 9698:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 9698:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 1
3.1 Terms and definitions . 1
3.2 Symbols . 2
4 Principle . 2
5 Reagents and equipment . 3
5.1 Reagents. 3
5.1.1 Water for the blank . 3
5.1.2 Calibration source solution . 4
5.1.3 Scintillation solution. 4
5.1.4 Quenching agent. 4
5.2 Equipment . 4
5.2.1 General. 4
5.2.2 Liquid scintillation counter . 5
5.2.3 Counting vials . 5
6 Sampling and samples .
...

NORME ISO
INTERNATIONALE 9698
Troisième édition
2019-05
Qualité de l'eau — Tritium — Méthode
d'essai par comptage des scintillations
en milieu liquide
Water quality — Tritium — Test method using liquid scintillation
counting
Numéro de référence
ISO 9698:2019(F)
©
ISO 2019

---------------------- Page: 1 ----------------------
ISO 9698:2019(F)

DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2019
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
Fax: +41 22 749 09 47
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii © ISO 2019 – Tous droits réservés

---------------------- Page: 2 ----------------------
ISO 9698:2019(F)

Sommaire Page
Avant-propos .iv
Introduction .v
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes, définitions et symboles . 1
3.1 Termes et définitions . 1
3.2 Symboles . 2
4 Principe . 2
5 Réactifs et équipement . 3
5.1 Réactifs . 3
5.1.1 Eau pour l’échantillon à blanc . 3
5.1.2 Solution de source d’étalonnage . 4
5.1.3 Solution scintillante. 4
5.1.4 Agent d’affaiblissement lumineux . 4
5.2 Équipement . 5
5.2.1 Généralités . 5
5.2.2 Compteur à scintillations en milieu liquide . 5
5.2.3 Flacons de comptage . 5
6 Échantillonnage et échantillons . 5
6.1 Échantillonnage et transport des échantillons .
...

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