EN ISO 10703:2015
(Main)Water quality - Determination of the activity concentration of radionuclides - Method by high resolution gamma-ray spectrometry (ISO 10703:2007)
Water quality - Determination of the activity concentration of radionuclides - Method by high resolution gamma-ray spectrometry (ISO 10703:2007)
ISO 10703:2007 specifies a method for the simultaneous determination of the activity concentration of various radionuclides emitting gamma rays with energies between 40 keV and 2 MeV in water samples, by gamma‑ray spectrometry using germanium detectors with high energy resolution in combination with a multichannel analyser.
Wasserbeschaffenheit - Bestimmung der Aktivitätskonzentration von Radionukliden - Verfahren mittels hochauflösender Gammaspektrometrie (ISO 10703:2007)
Qualité de l'eau - Détermination de l'activité volumique des radionucléides - Méthode par spectrométrie gamma à haute résolution (ISO 10703:2007)
L'ISO 10703:2007 présente une méthode de détermination simultanée des activités volumiques de différents radionucléides émetteurs de rayonnements gamma d'énergies comprises entre 40 keV et 2 MeV, dans les échantillons d'eau, par spectrométrie gamma en utilisant un détecteur de germanium de haute résolution couplé à un analyseur multicanal.
Kakovost vode - Določevanje koncentracije aktivnosti radionuklidov - Metoda z gama spektrometrijo visoke ločljivosti (ISO 10703:2007)
Ta mednarodni standard določa metodo za hkratno določanje koncentracije aktivnosti raznih radionuklidov, ki oddajajo gama žarke z energijo 40 keV < E < 2 MeV v vzorcih vode, prek gama spektrometrije z detektorji iz germanija z visoko energijsko ločljivostjo v kombinaciji z večkanalnim analizatorjem. OPOMBA Določanje koncentracije aktivnosti radionuklidov, ki oddajajo gama žarke z energijo, manjšo od 40 keV in večjo od 2 MeV je ravno tako mogoče v obsegu tega mednarodnega standarda, pod pogojem, da sta tako kalibracija merilnega sistema kot zaščita prilagojena temu namenu. Ta mednarodni standard vključuje postopke za kalibracijo energije, določanje občutljivosti merilnega sistema, odvisne od energije, analizo spektrov in določanje koncentracije aktivnosti raznih radionuklidov v proučevanem vzorcu. Uporablja se samo za homogene vzorce. Vzorce z aktivnostmi, ki običajno znašajo med 1 Bq in 104 Bq je mogoče meriti kot take, tj. brez redčenja ali zgoščevanja vzorca ali posebnih (elektronskih) naprav. Odvisno od različnih dejavnikov, kot so energija gama žarkov in verjetnost emisij glede na jedrsko razpadanje, velikost in oblika vzorca in detektorja, zaščita, čas štetja in drugi parametri pri poskusu, naj bi bil vzorec zgoščen z izhlapevanjem, kadar je treba meriti aktivnosti pod približno 1 Bq. Kadar je aktivnost bistveno višja od 104 Bq, naj bi bil vzorec razredčen ali pa je treba izvleči preskusni delež vzorca, povečati razdaljo med virom in detektorjem ali uporabiti popravek za učinke kopičenja.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Wasserbeschaffenheit - Bestimmung der Aktivitätskonzentration von Radionukliden - Verfahren mittels hochauflösender Gammaspektrometrie (ISO 10703:2007)Qualité de l'eau - Détermination de l'activité volumique des radionucléides - Méthode par spectrométrie gamma à haute résolution (ISO 10703:2007)Water quality - Determination of the activity concentration of radionuclides - Method by high resolution gamma-ray spectrometry (ISO 10703:2007)17.240Merjenje sevanjaRadiation measurements13.060.60Preiskava fizikalnih lastnosti vodeExamination of physical properties of waterICS:Ta slovenski standard je istoveten z:EN ISO 10703:2015SIST EN ISO 10703:2016en,fr,de01-februar-2016SIST EN ISO 10703:2016SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN ISO 10703
October
t r s w ICS
s uä r x rä x râ
s yä t v r English Version
Water quality æ Determination of the activity concentration of radionuclides æ Method by high resolution gammaæray Qualité de l 5eau æ Détermination de l 5activité volumique des radionucléides æ Méthode par spectrométrie
Wasserbeschaffenheit æ Bestimmung der Aktivitätskonzentration von Radionukliden æ Verfahren This European Standard was approved by CEN on
t y September
t r s wä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
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t r s w CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN ISO
s r y r uã t r s w ESIST EN ISO 10703:2016
Reference numberISO 10703:2007(E)© ISO 2007
INTERNATIONAL STANDARD ISO10703Second edition2007-11-15Water quality — Determination of the activity concentration of radionuclides — Method by high resolution gamma-ray spectrometry Qualité de l'eau — Détermination de l'activité volumique des radionucléides — Méthode par spectrométrie gamma à haute résolution SIST EN ISO 10703:2016
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ISO 10703:2007(E) © ISO 2007 – All rights reserved iiiContents Page Foreword.iv Introduction.v 1 Scope.1 2 Normative references.1 3 Terms and definitions.2 4 Symbols and units.4 5 Principle.5 6 Reference sources.5 7 Reagents.5 8 Gamma spectrometry equipment.6 9 Sampling.8 10 Procedure.8 11 Expression of results.11 12 Test report.16 Annex A (informative)
Example of a carrier solution which can be added to the water sample when waste water from a nuclear power plant is investigated.17 Annex B (informative)
Calculation of the activity concentration from a gamma spectrum using a linear background subtraction (undisturbed peak).18 Bibliography.20
ISO 10703:2007(E) iv © ISO 2007 – All rights reserved 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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. ISO 10703 was prepared by Technical Committee ISO/TC 147, Water quality. This second edition cancels and replaces the first edition (ISO 10703:1997), which has been technically revised. SIST EN ISO 10703:2016
ISO 10703:2007(E) © ISO 2007 – All rights reserved vIntroduction This International Standard allows (after proper sampling, sample handling and, when necessary or desirable, sample preparation) the simultaneous determination of the activity concentration of several gamma-ray emitting radionuclides in water samples by gamma-ray spectrometry using high purity germanium [HPGe] detectors. Gamma-ray emitting radionuclides are widespread both as naturally occurring and as man-made radionuclides. Therefore, environmental samples usually contain a multitude of different gamma-ray emitters and high resolution gamma-ray spectrometry provides a useful analytical tool for environmental measurements.
INTERNATIONAL STANDARD ISO 10703:2007(E) © ISO 2007 – All rights reserved 1Water quality — Determination of the activity concentration of radionuclides — Method by high resolution gamma-ray spectrometry WARNING — Persons using this International Standard should be familiar with normal laboratory practice. This International Standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. IMPORTANT — It is absolutely essential that tests conducted in accordance with this International Standard be carried out by suitably trained staff. 1 Scope This International Standard specifies a method for the simultaneous determination of the activity concentration of various radionuclides emitting gamma rays with energies 40 keV < E < 2 MeV in water samples, by gamma-ray spectrometry using germanium detectors with high energy resolution in combination with a multichannel analyser. NOTE The determination of the activity concentration of radionuclides emitting gamma rays with energy below 40 keV and above 2 MeV is also possible within the scope of this International Standard, provided both the calibration of the measuring system and the shielding are adapted to this purpose. This International Standard includes the procedures for energy calibration, determination of the energy dependent sensitivity of the measuring system, the analysis of the spectra and the determination of the activity concentration of the various radionuclides in the sample studied. It is only applicable to homogeneous samples. Samples with activities typically between 1 Bq and 104 Bq can be measured as such, i.e. without dilution or concentration of the sample or special (electronic) devices. Depending on different factors, such as the energy of the gamma rays and the emission probability per nuclear disintegration, the size and geometry of the sample and the detector, the shielding, the counting time and other experimental parameters, the sample should be concentrated by evaporation when activities below about 1 Bq have to be measured. Also, when the activity is considerably higher than 104 Bq, the sample should be either diluted or an aliquot of the sample should be taken or the source to detector distance should be increased, or a correction for pile-up effects should be applied. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 31-9, Quantities and units — Part 9: Atomic and nuclear physics ISO 3696, Water for analytical laboratory use — Specification and test methods ISO 5667-1, Water quality — Sampling — Part 1: Guidance on the design of sampling programmes and sampling techniques SIST EN ISO 10703:2016
ISO 10703:2007(E) 2 © ISO 2007 – All rights reserved ISO 5667-3, Water quality — Sampling — Part 3: Guidance on the preservation and handling of water samples ISO 5667-14, Water quality — Sampling — Part 14: Guidance on quality assurance of environmental water sampling and handling ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories Guide to the expression of uncertainty in measurement (GUM), BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML IEC 60973, Test procedures for germanium gamma-ray detectors IEC 61151, Nuclear instrumentation — Amplifiers and preamplifiers used with detectors of ionizing radiation — Test procedures IEC 61452, Nuclear instrumentation — Measurement o
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