SIST EN ISO 13165-1:2024

SLOVENSKI STANDARD
01-junij-2024
Nadomešča:
SIST EN ISO 13165-1:2020
Kakovost vode - Radij Ra-226 - 1. del: Preskusna metoda s štetjem s tekočinskim
scintilatorjem (ISO 13165-1:2022)
Water quality - Radium-226 - Part 1: Test method using liquid scintillation counting (ISO
13165-1:2022)
Wasserbeschaffenheit - Radium-226 - Teil-1: Verfahren mit dem
Flüssigszintillationszhler (ISO 13165-1:2022)
Qualité de l'eau - Radium-226 - Partie 1: Méthode d'essai par comptage des scintillations
en milieu liquide (ISO 13165-1:2022)
Ta slovenski standard je istoveten z: EN ISO 13165-1:2024
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 13165-1
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2024
EUROPÄISCHE NORM
ICS 13.060.60; 17.240 Supersedes EN ISO 13165-1:2020
English Version
Water quality - Radium-226 - Part 1: Test method using
liquid scintillation counting (ISO 13165-1:2022)
Qualité de l'eau - Radium-226 - Partie 1: Méthode Wasserbeschaffenheit - Radium-226 - Teil-1: Verfahren
d'essai par comptage des scintillations en milieu mit dem Flüssigszintillationszhler (ISO 13165-1:2022)
liquide (ISO 13165-1:2022)
This European Standard was approved by CEN on 12 February 2024.

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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13165-1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 13165-1:2022 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-
1:2024 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 2024, and conflicting national standards shall
be withdrawn at the latest by August 2024.
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.
This document supersedes EN ISO 13165-1:2020.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 13165-1:2022 has been approved by CEN as EN ISO 13165-1:2024 without any
modification.
INTERNATIONAL ISO
STANDARD 13165-1
Second edition
2022-11
Water quality — Radium-226 —
Part 1:
Test method using liquid scintillation
counting
Qualité de l'eau — Radium-226 —
Partie 1: Méthode d'essai par comptage des scintillations en milieu
liquide
Reference number
ISO 13165-1:2022(E)
ISO 13165-1:2022(E)
© ISO 2022
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 13165-1:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and units. 2
5 Principle . 2
6 Reagents and equipment . 3
6.1 Reagents . 3
6.2 Equipment . 3
7 Sampling . 4
8 Instrument set-up and calibration. 4
8.1 Preparation of calibration sources . 4
8.2 Optimization of counting conditions . 4
8.3 Detection efficiency . 4
8.4 Blank sample preparation and measurement. 5
9 Procedure .5
9.1 Direct counting . 5
9.2 Thermal preconcentration . 5
9.3 Sample preparation . 6
9.4 Sample measurement . 6
10 Quality control . 6
11 Expression of results . 7
11.1 Calculation of massic activity . . 7
11.2 Standard uncertainty . 7
11.3 Decision threshold . 8
11.4 Detection limit . 8
11.5 Limits of the coverage intervals . 8
11.5.1 Limits of the probabilistically symmetric coverage interval . 8
11.5.2 Shortest coverage interval . 9
11.6 Calculations using the activity concentration . 9
12 Interference control .9
13 Test report . 9
[13]
Annex A (informative) Set-up parameters and validation data .11
Bibliography .15
iii
ISO 13165-1:2022(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
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
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 the document will be in the Introduction
...