Water quality - Gross alpha and gross beta activity - Test method using liquid scintillation counting (ISO 11704:2018)

This document specifies a method for the determination of gross alpha and gross beta activity concentration for alpha- and beta-emitting radionuclides using liquid scintillation counting (LSC).
The method is applicable to all types of waters with a dry residue of less than 5 g/l and when no correction for colour quenching is necessary.
Gross alpha and gross beta activity measurement is not intended to give an absolute determination of the activity concentration of all alpha- and beta-emitting radionuclides in a test sample, but is a screening analysis to ensure particular reference levels of specific alpha and beta emitters have not been exceeded. This type of determination is also known as gross alpha and beta index. Gross alpha and beta analysis is not expected to be as accurate nor as precise as specific radionuclide analysis after radiochemical separations.
The method covers non-volatile radionuclides below 80 °C, since some gaseous or volatile radionuclides (e.g. radon and radioiodine) can be lost during the source preparation.
The method is applicable to test samples of drinking water, rain water, surface and ground water as well as cooling water, industrial water, domestic and industrial waste water after proper sampling and test sample preparation (filtration when necessary and taking into account the amount of dissolved material in the water).
The method described in this document is applicable in the event of an emergency situation, because the results can be obtained in less than 4 h by directly measuring water test samples without any treatment.
It is the laboratory's responsibility to ensure the suitability of this test method for the water samples tested.

Wasserbeschaffenheit - Gesamt-Alpha- und Gesamt-Beta-Aktivität - Verfahren mit dem Flüssigszintillationszähler (ISO 11704:2018)

Diese Internationale Norm legt ein Verfahren zur Bestimmung der Gesamt-Alpha- und Gesamt-Beta-Aktivität durch alpha- und beta-emittierende Radionuklide mit dem Flüssigszintillationszähler (en: liquid scintillation counting, LSC) fest.
Das Verfahren ist anwendbar auf alle Wässer mit einem Trockenrückstand von weniger als 5 g/l und wenn keine Korrektur des Farbquench erforderlich ist.
Die Messung der Gesamt-Alpha- und Gesamt-Beta-Aktivität ist nicht dafür vorgesehen, eine absolute Bestimmung aller alpha- und beta-strahlenden Radionuklide in einer zu untersuchenden Probe zu leisten, aber als Screeningverfahren ist es geeignet sicherzustellen, das definierte Referenzniveaus spezifischer Alpha- und Beta-Strahler nicht überschritten werden. Diese Art der Bestimmung ist auch als Gesamt-Alpha- und Beta-Index bekannt. Die Gesamt-Alpha- und Beta-Analyse wird nicht genauso akkurat und präzise sein, wie die Analyse spezifischer Radionuklide nach radiochemischer Trennung.
Das Verfahren deckt nicht-flüchtige Radionuklide unter 80 °C ab, da einige gasförmige oder flüchtige Radionuklide (z. B. Radon und Radioiod) bei der Aufbereitung der Quelle verloren gehen können.
Das Verfahren ist auf Proben von Trinkwasser, Regenwasser, Oberflächen- und Grundwasser, sowie Kühlwasser, Prozesswasser, häusliches und gewerbliches Abwasser, nach geeigneter Probenahme, Probenbehandlung und Aufbereitung der Untersuchungsprobe (Filtration, falls erforderlich, und Berücksichtigung der im Wasser gelösten Bestandteile) anwendbar.
Das in dieser Norm beschriebene Verfahren ist bei Notfall-Situationen anwendbar, da die Ergebnisse in weniger als 4 h durch direktes Messen der Wasserproben ohne jegliche Vorbehandlung erhalten werden können.
Es liegt in der Verantwortung des Labors die Eignung dieses Prüfverfahrens für die zu prüfenden Wasserproben sicherzustellen.

Qualité de l'eau - Activités alpha globale et bêta globale - Méthode d'essai par comptage des scintillations en milieu liquide (ISO 11704:2018)

Le présent document spécifie une méthode de détermination des activités volumiques alpha globale et bêta globale pour des radionucléides émetteurs alpha et bêta par comptage des scintillations en milieu liquide.
La méthode est applicable à tous les types d'eau ayant un résidu sec inférieur à 5 g/l et lorsqu'aucune correction n'est nécessaire pour l'affaiblissement lumineux de couleur.
Le mesurage des activités alpha globale et bêta globale n'est pas destiné à fournir une détermination absolue de l'activité volumique de tous les radionucléides émetteurs alpha et bêta dans un échantillon pour essai; il s'agit plutôt d'une analyse de contrôle visant à s'assurer que des niveaux de référence donnés d'émetteurs alpha et bêta n'ont pas été dépassés. Ce type de déterminations est également connu sous le nom d'indices alpha et bêta. Il ne faut pas s'attendre à ce que l'analyse des activités alpha globale et bêta globale soit aussi précise, ni aussi juste, que l'analyse de radionucléides spécifiques après séparation radiochimique.
Cette méthode couvre les radionucléides non volatils en dessous de 80 °C, étant donné que certains radionucléides gazeux ou volatils (par exemple, le radon et l'iode radioactif) peuvent être perdus lors de la préparation de la solution source.
Cette méthode peut s'appliquer à des échantillons pour essai d'eau potable, d'eau de pluie, d'eau de surface et d'eau souterraine, ainsi que d'eau de refroidissement, d'eaux industrielles, d'eaux usées domestiques et industrielles, après avoir procédé comme il se doit au prélèvement et à la préparation des échantillons pour essai (en les filtrant lorsque cela s'avère nécessaire et en tenant compte de la quantité de matière dissoute dans l'eau).
La méthode décrite dans le présent document est applicable en cas de situation d'urgence, car les résultats peuvent être obtenus en moins de 4 h en mesurant directement les échantillons d'eau pour essai sans aucun traitement.
Il incombe au laboratoire de s'assurer de la pertinence de la présente méthode d'essai pour les échantillons d'eau soumis à essai.

Kakovost vode - Skupna alfa in skupna beta aktivnost - Preskusna metoda s štetjem s tekočinskim scintilatorjem (ISO 11704:2018)

Ta dokument določa metodo za določevanje koncentracije skupne alfa in skupne beta aktivnosti za alfa in beta oddajne radionuklide s štetjem s tekočinskim scintilatorjem (LSC).
Metoda se uporablja za vse vrste vod s suhim ostankom, manjšim od 5 g/l, pri katerih ni potreben
popravek za dušenje fluorescence.
Meritev skupne alfa in skupne beta aktivnosti ni namenjena absolutni določitvi koncentracije aktivnosti vseh alfa in beta oddajnih radionuklidov v preskusnem vzorcu, temveč je presejalna analiza, s katero se zagotovi, da določene referenčne ravni specifičnih alfa in beta oddajnikov
niso bile presežene. Ta vrsta določevanja se imenuje tudi skupni alfa in beta indeks. Ne pričakuje se, da bo skupna alfa
in skupna beta analiza enako točna in natančna kot specifična radionuklidna analiza po radiokemičnih separacijah.
Metoda zajema nehlapne radionuklide s temperaturo, nižjo od 80 °C, saj se lahko nekateri radionuklidi v plinastem stanju oziroma hlapni radionuklidi (npr. radon in radioaktivni jod) med pripravo virov izgubijo.
Metoda se uporablja za preskusne vzorce pitne vode, deževnice, površinske in podtalne vode
ter vode za hlajenje, industrijske vode, gospodinjske in industrijske odpadne vode po ustreznem vzorčenju in pripravi preskusnih vzorcev (filtracija, kadar je to potrebno, in upoštevanje količine raztopljenih snovi v vodi).
Metoda, opisana v tem dokumentu, se uporablja v izrednih razmerah, saj
je mogoče rezultate pridobiti v manj kot štirih urah z neposrednim merjenjem preskusnih vzorcev vode brez obdelave.
Laboratorij mora zagotoviti primernost te preskusne metode za vzorce vode, ki se preskušajo.

General Information

Status
Published
Publication Date
11-Dec-2018
Withdrawal Date
29-Jun-2019
Technical Committee
Drafting Committee
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
12-Dec-2018
Completion Date
12-Dec-2018

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 11704:2019
01-maj-2019
1DGRPHãþD
SIST EN ISO 11704:2015
SIST ISO 11704:2013
.DNRYRVWYRGH6NXSQDDOIDLQVNXSQDEHWDDNWLYQRVW3UHVNXVQDPHWRGDV
ãWHWMHPVWHNRþLQVNLPVFLQWLODWRUMHP ,62
Water quality - Gross alpha and gross beta activity - Test method using liquid scintillation
counting (ISO 11704:2018)
Wasserbeschaffenheit - Gesamt-Alpha- und Gesamt-Beta-Aktivität - Verfahren mit dem
Flüssigszintillationszähler (ISO 11704:2018)
Qualité de l'eau - Activités alpha globale et bêta globale - Méthode d'essai par comptage
des scintillations en milieu liquide (ISO 11704:2018)
Ta slovenski standard je istoveten z: EN ISO 11704:2018
ICS:
13.060.60 Preiskava fizikalnih lastnosti Examination of physical
vode properties of water
17.240 Merjenje sevanja Radiation measurements
SIST EN ISO 11704:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11704:2019

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SIST EN ISO 11704:2019


EN ISO 11704
EUROPEAN STANDARD

NORME EUROPÉENNE

December 2018
EUROPÄISCHE NORM
ICS 13.060.60; 17.240 Supersedes EN ISO 11704:2015
English Version

Water quality - Gross alpha and gross beta activity - Test
method using liquid scintillation counting (ISO
11704:2018)
Qualité de l'eau - Activités alpha globale et bêta globale Wasserbeschaffenheit - Gesamt-Alpha- und Gesamt-
- Méthode d'essai par comptage des scintillations en Beta-Aktivität - Verfahren mit dem
milieu liquide (ISO 11704:2018) Flüssigszintillationszähler (ISO 11704:2018)
This European Standard was approved by CEN on 1 November 2018.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11704:2018 E
worldwide for CEN national Members.

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SIST EN ISO 11704:2019
EN ISO 11704:2018 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 11704:2019
EN ISO 11704:2018 (E)
European foreword
This document (EN ISO 11704:2018) has been prepared by Technical Committee ISO/TC 147 "Water
quality" in collaboration with 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 June 2019, and conflicting national standards shall be
withdrawn at the latest by June 2019.
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 11704:2015.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 11704:2018 has been approved by CEN as EN ISO 11704:2018 without any modification.


3

---------------------- P
...

SLOVENSKI STANDARD
oSIST prEN ISO 11704:2017
01-september-2017
.DNRYRVWYRGH0HUMHQMHVNXSQHDOIDLQVNXSQHEHWDDNWLYQRVWL0HWRGDãWHWMDV
WHNRþLQVNLPVFLQWLODWRUMHP
Water quality - Gross alpha and gross beta activity - Test method using liquid scintillation
counting
Wasserbeschaffenheit - Bestimmung der Gesamt-Alpha- und Gesamt-Beta-Aktivität in
nicht-salzhaltigem Wasser - Verfahren mit dem Flüssigszintillationszähler
Qualité de l'eau - Activités alpha globale et bêta globale - Méthode d'essai par comptage
des scintillations en milieu liquide
Ta slovenski standard je istoveten z: prEN ISO 11704
ICS:
13.060.60 Preiskava fizikalnih lastnosti Examination of physical
vode properties of water
17.240 Merjenje sevanja Radiation measurements
oSIST prEN ISO 11704:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 11704:2017

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oSIST prEN ISO 11704:2017
DRAFT INTERNATIONAL STANDARD
ISO/DIS 11704
ISO/TC 147/SC 3 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2017-07-13 2017-10-04
Water quality — Gross alpha and gross beta activity — Test
method using liquid scintillation counting
Qualité de l’eau — Activités alpha globale et bêta globale — Méthode d’essai par comptage des
scintillations en milieu liquide
ICS: 13.060.60; 17.240
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 11704:2017(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2017

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oSIST prEN ISO 11704:2017
ISO/DIS 11704:2017(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
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copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

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oSIST prEN ISO 11704:2017
ISO/DIS 11704:2017(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Symbols, definitions and units . 2
4 Principle . 3
5 Reagents and equipment . 3
6 Sampling . 5
7 Procedure.
...

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