EN ISO 13165-3:2020

SLOVENSKI STANDARD
01-maj-2020
Kakovost vode - Radij Ra-226 - 3. del: Preskusna metoda s soobarjanjem in gama
spektrometrijo (ISO 13165-3:2016)
Water quality - Radium-226 - Part 3: Test method using coprecipitation and gamma-
spectrometry (ISO 13165-3:2016)
Wasserbeschaffenheit - Radium 226 - Teil 3: Verfahren mittels Kopräzipitation und
Gammaspektrometrie (ISO 13165-3:2016)
Qualité de l'eau - Radium 226 - Partie 3: Méthode d'essai par coprécipitation et
spectrométrie gamma (ISO 13165-3:2016)
Ta slovenski standard je istoveten z: EN ISO 13165-3:2020
ICS:
13.060.60 Preiskava fizikalnih lastnosti Examination of physical
vode properties of water
17.240 Merjenje sevanja Radiation measurements
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 13165-3
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 13.060.60; 17.240
English Version
Water quality - Radium-226 - Part 3: Test method using
coprecipitation and gamma-spectrometry (ISO 13165-
3:2016)
Qualité de l'eau - Radium 226 - Partie 3: Méthode Wasserbeschaffenheit - Radium 226 - Teil 3: Verfahren
d'essai par coprécipitation et spectrométrie gamma mittels Kopräzipitation und Gammaspektrometrie (ISO
(ISO 13165-3:2016) 13165-3:2016)
This European Standard was approved by CEN on 6 October 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13165-3:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 13165-3:2016 has been prepared by Technical Committee ISO/TC 147 "Water quality”
of the International Organization for Standardization (ISO) and has been taken over as EN ISO 13165-
3:2020 by Technical Committee CEN/TC 230 “Water analysis” the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by August 2020, and conflicting national standards shall
be withdrawn at the latest by August 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 13165-3:2016 has been approved by CEN as EN ISO 13165-3:2020 without any
modification.
INTERNATIONAL ISO
STANDARD 13165-3
First edition
2016-03-01
Water quality — Radium-226 —
Part 3:
Test method using coprecipitation and
gamma-spectrometry
Qualité de l’eau — Radium 226 —
Partie 3: Méthode d’essai par coprécipitation et spectrométrie gamma
Reference number
ISO 13165-3:2016(E)
©
ISO 2016
ISO 13165-3:2016(E)
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
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ii © ISO 2016 – All rights reserved

ISO 13165-3:2016(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Principle of the measurement . 3
6 Reagents and equipment . 3
6.1 Reagents. 3
6.2 Equipment . 4
7 Sampling . 4
7.1 Sample collection . 4
7.2 Sample transport and storage . 4
8 Procedures . 4
8.1 Blank sample preparation . 4
8.2 Sample preparation . 5
8.3 Counting procedure . 5
9 Quality assurance and quality control programme . 5
9.1 General . 5
9.2 Influence quantities . 6
9.3 Instrument verification. 6
9.4 Method verification . 6
9.5 Demonstration of analyst capability . 6
10 Expression of results . 6
10.1 General . 6
10.2 Water-soluble Ra activity concentration . 7
10.3 Standard uncertainty of activity concentration . 7
10.4 Decision threshold . 7
10.5 Detection limit . 7
10.6 Limits of the confidence interval . 8
10.7 Corrections for contributions from other radionuclides and background . 8
10.7.1 General. 8
10.7.2 Contribution from other radionuclides . 9
10.7.3 Contribution from background .10
11 Expression of results .10
Annex A (informative) Uranium and its decay chain .12
Bibliography .14
ISO 13165-3:2016(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of
...