EN ISO 13165-3:2024
(Main)Water quality - Radium-226 - Part 3: Test method using coprecipitation and gamma-ray spectrometry (ISO 13165-3:2024)
Water quality - Radium-226 - Part 3: Test method using coprecipitation and gamma-ray spectrometry (ISO 13165-3:2024)
This document specifies a method to determine radium-226 (226Ra) activity concentration in all types of water by coprecipitation followed by gamma-ray spectrometry (see ISO 20042[7]).
The method covers the measurement of soluble 226Ra activity concentrations greater than 0,002 Bq·l−1 using a sample volume of up to 100 l of any water type.
For water samples with a volume of less than a volume of 1 l, direct gamma-ray spectrometry can be performed following ISO 10703 but with a higher detection limit. The typical detection limit for samples of 1 l to 5 l is in the range of 0,002 to 0,000 40 Bq·l−1[8].
NOTE This test method can be adapted to determine other naturally occurring isotopes of radium, such as 223Ra, 224Ra and 228Ra, if the respective ingrowth periods are taken into account.
Wasserbeschaffenheit - Radium-226 - Teil 3: Verfahren mittels Kopräzipitation und Gamma-Ray-Spektrometrie (ISO 13165-3:2024)
Dieses Dokument legt ein Verfahren zur Bestimmung der Aktivitätskonzentration von Radium 226 (226Ra) in allen Arten von Wasser durch Mitfällung und anschließende Gammaspektrometrie fest (siehe ISO 20042 [7]).
Das Verfahren beschreibt die Bestimmung der Aktivitätskonzentrationen von löslichem 226Ra von mehr als 0,002 Bq ⋅ l-1 unter dem Einsatz eines Probenvolumens von bis zu 100 l eines beliebigen Wassertyps.
Für Wasserproben mit einem Volumen von weniger als 1 l kann eine direkte Gammaspektrometrie nach ISO 10703 jedoch mit einer höheren Nachweisgrenze durchgeführt werden. Die typischen Nachweisgrenzen für Proben von 1 l bis 5 l liegt im Bereich von 0,002 bis 0,000 40 Bq·l−1[8].
ANMERKUNG Dieses Prüfverfahren kann angepasst werden, um andere natürlich vorkommenden Radiumisotope, wie 223Ra, 224Ra und 228Ra, zu bestimmen, sofern deren Aufwachszeiten berücksichtigt werden.
WARNUNG — Anwender dieses Dokuments sollten mit der üblichen Laborpraxis vertraut sein. Dieses Dokument gibt nicht vor, alle unter Umständen mit der Anwendung des Verfahrens verbundenen Sicherheitsaspekte anzusprechen. Es liegt in der Verantwortung des AnwendersN1, angemessene Sicherheits und Schutzmaßnahmen zu treffen und sicherzustellen, dass diese mit nationalen Festlegungen übereinstimmen.
WICHTIG — Es ist unbedingt erforderlich, dass die Untersuchungen nach diesem Dokument von entsprechend qualifiziertem Personal durchgeführt werden.
Qualité de l'eau - Radium-226 - Partie 3: Méthode d’essai par coprécipitation et spectrométrie gamma (ISO 13165-3:2024)
Le présent document spécifie une méthode de détermination de l’activité volumique du radium-226 (226Ra), dans tous les types d’eau, par coprécipitation suivie d’une spectrométrie gamma (voir l’ISO 20042[7]).
La méthode couvre la mesure de l’activité volumique du 226Ra soluble lorsque cette activité est supérieure à 0,002 Bq⋅l−1 pour un volume d’échantillon, de tout type d’eau, ne dépassant pas 100 l.
Pour des échantillons d’eau dont le volume est inférieur à 1 l, la spectrométrie gamma directe peut être effectuée en suivant l’ISO 10703 mais avec une limite de détection plus élevée. Pour des échantillons de 1 l à 5 l, la limite de détection la plus courante est comprise entre 0,002 Bq·l−1 et 0,000 40 Bq·l−1[8].
NOTE Cette méthode d’essai permet également le mesurage d’autres isotopes de radium d’origine naturelle, tels que le 223Ra, le 224Ra, et le 228Ra, si leur période de mise à l’équilibre respective est prise en compte.
Kakovost vode - Radij Ra-226 - 3. del: Preskusna metoda s soobarjanjem in gama spektrometrijo (ISO/FDIS 13165-3:2024)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 13165-3:2023
01-maj-2023
Kakovost vode - Radij Ra-226 - 3. del: Preskusna metoda s soobarjanjem in gama
spektrometrijo (ISO/DIS 13165-3:2023)
Water quality - Radium-226 - Part 3: Test method using coprecipitation and gamma-
spectrometry (ISO/DIS 13165-3:2023)
Wasserbeschaffenheit - Radium-226 - Teil 3: Verfahren mittels Kopräzipitation und
Gammaspektrometrie (ISO/DIS 13165-3:2023)
Qualité de l'eau - Radium 226 - Partie 3: Méthode d'essai par co-précipitation et
spectrométrie gamma (ISO/DIS 13165-3:2023)
Ta slovenski standard je istoveten z: prEN ISO 13165-3
ICS:
13.060.60 Preiskava fizikalnih lastnosti Examination of physical
vode properties of water
17.240 Merjenje sevanja Radiation measurements
oSIST prEN ISO 13165-3:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN ISO 13165-3:2023
oSIST prEN ISO 13165-3:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 13165-3
ISO/TC 147/SC 3 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2023-03-16 2023-06-08
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
ICS: 17.240; 13.060.60
This document is circulated as received from the committee secretariat.
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oSIST prEN ISO 13165-3:2023
ISO/DIS 13165-3:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 13165-3
ISO/TC 147/SC 3 Secretariat: AFNOR
Voting begins on: Voting terminates on:
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
ICS: 17.240; 13.060.60
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
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© ISO 2023
ISO/CEN PARALLEL PROCESSING
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ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023
oSIST prEN ISO 13165-3:2023
ISO/DIS 13165-3:2023(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 . 5
8.1 Blank sample preparation . 5
8.2 Sample preparation . 5
8.3 Counting procedure . 5
9 Quality assurance and quality control programme . 6
9.1 General . 6
9.2 Influence quantities . 6
9.3 Method verification . 6
9.4 Demonstration of analyst capability . 6
10 Expression of results . 7
10.1 General . 7
10.2 Water-soluble Ra activity concentration . 7
10.3 Standard uncertainty of activity concentration . 7
10.4 Decision threshold . 8
10.5 Detection limit . 8
10.6 Limits of the coverage intervals . . 8
10.6.1 Limits of the probabilistically symmetric coverage interval . 8
10.6.2 The shortest coverage interval . 9
10.7 Corrections for contributions from other radionuclides and background . 9
10.7.1 General . 9
10.7.2 Contribution from other radionuclides . 10
10.7.3 Contribution from background . 11
11 Test report .11
Annex A (informative) Uranium, Thorium and Neptunium and their decay chains .13
Bibliography .15
iii
oSIST prEN ISO 13165-3:2023
ISO/DIS 13165-3:2023(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
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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 the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
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www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 147 Water quality, Subcommittee SC 3,
Radioactivity measurements.
This second edition cancels and replaces the first edition (ISO 13165-3:2016), which has been
technically revised.
The main changes are as follows:
— complete revision of the introduction
— the principal of measurement (Clause 5) was expanded
— the instrument verification (formerly subclause 9.3) was deleted
— formulae for the coverage intervals according to ISO 11929 series were updated
— requirements of the test report were updated
A list of all parts in the ISO 13165 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
oSIST prEN ISO 13165-3:2023
ISO/DIS 13165-3:2023(E)
Introduction
Radionuclides are present throughout the environment; thus, water bodies (e.g., surface waters, ground
waters, sea waters) contain radionuclides, which can be of either natural or anthropogenic origin:
3 14 40
— naturally-occurring radionuclides, including H, C, K and those origin
...
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