EN ISO 16424:2017
(Main)Nuclear energy - Evaluation of homogeneity of Gd distribution within gadolinium fuel blends and determination of Gd2O3 content in gadolinium fuel pellets by measurements of uranium and gadolinium elements (ISO 16424:2012)
Nuclear energy - Evaluation of homogeneity of Gd distribution within gadolinium fuel blends and determination of Gd2O3 content in gadolinium fuel pellets by measurements of uranium and gadolinium elements (ISO 16424:2012)
ISO 16424:2012 is applicable to the evaluation of the homogeneity of Gd distribution within gadolinium fuel blends, and the determination of the Gd2O3 content in sintered fuel pellets of Gd2O3+UO2 from 1 % to 10 %, by measurements of gadolinium (Gd) and uranium (U) elements using ICP-AES.
After performing measurements of Gd and U elements using ICP-AES, if statistical methodology is additionally applied, homogeneity of Gd distribution within a Gd fuel pellet lot can also be evaluated. However, ISO 16424:2012 covers the statistical methodology only on a limited basis.
Kernenergie - Bewertung der Homogenität der Gd-Verteilung in Gadolinium-Brennstoffgemischen und Bestimmung des Gd₂O₃-Gehaltes in Gadolinium-Brennstofftabletten durch Messung der Uran- und Gadolinium-Bestandteile (ISO 16424:2012)
Diese Internationale Norm ist für die Beurteilung der Homogenität der Gd Verteilung in Gadolinium-Brennstoffgemischen und die Bestimmung des Gehalts von Gd2O3 in gesinterten Brennstofftabletten von Gd2O3 + UO2 von 1 % bis 10 % durch Messung von Gadolinium-(Gd ) und Uran-(U )Elementen mit ICP-AES anwendbar.
Nach der Durchführung von Messungen von Gd und U Elementen mit ICP-AES kann bei zusätzlicher Anwendung von statistischen Verfahren ebenfalls die Homogenität der Gd Verteilung in einem Gd Brennstofftabletten Los beurteilt werden. Diese Internationale Norm behandelt jedoch die statistischen Verfahren nur eingeschränkt.
ANMERKUNG 1 ISO 16796 bietet ebenfalls ein Verfahren für die Bestimmung des Gehalts von Gd2O3 durch atomare Emissionsspektrometrie mit einer induktiv gekoppelten Plasmaquelle (en: Inductively Coupled Plasma Atomic Emission Spectrometry, ICP-AES). Das Verfahren von ISO 16796 unterscheidet sich von dem in dieser Internationalen Norm.
ANMERKUNG 2 In dieser Internationalen Norm stellt das Gadolinium-Brennstoffgemisch ein Gemisch aus Urandioxid-(UO2 )Pulver und Gadoliniumoxid-(Gd2O3 )Pulver dar. Das physikalisch gemischte und homogenisierte Pulver kann zusätzlich relativ große Mengen an Uranoxid-(U3O8-)Pulverpartikeln und/oder die durch die Oxidation von Gd-Tabletten erhaltenen M3O8 Pulverpartikel enthalten. In dieser Internationalen Norm stellt das Symbol „M“ in der chemischen Formel „M3O8“ und in der Benennung „O/M Verhältnis“ die Metallelemente U und Gd dar.
Énergie nucléaire - Évaluation de l'homogénéité de la distribution du Gd dans les mélanges de combustibles au gadolinium et détermination de la teneur en Gd2O3 dans les pastilles combustibles au gadolinium par mesurage des éléments uranium et gadolinium (ISO 16424:2012)
L'ISO 16424:2012 spécifie une méthode d'évaluation de l'homogénéité de la distribution du Gd dans les mélanges de combustibles au gadolinium et de détermination de la teneur en Gd2O3 dans les pastilles combustibles frittées de Gd2O3+UO2 allant de 1 % à 10 %, par mesurage des éléments gadolinium (Gd) et uranium (U) en utilisant la méthode de spectrométrie par émission atomique à plasma à couplage inductif (ICP-AES).
Après mesurage des éléments Gd et U en utilisant la méthode ICP-AES, si la méthodologie statistique est en outre appliquée, l'homogénéité de la distribution du Gd dans un lot de pastilles combustibles au Gd peut également être évaluée. Cependant, l'ISO 16424:2012 ne couvre la méthodologie statistique que sur une base restreinte.
Jedrska energija - Vrednotenje homogenosti porazdelitve gadolinija (Gd) v gadolinijevih gorivnih mešanicah in ugotavljanje vsebnosti Gd203 v gadolinijevih gorivnih peletih z merjenjem elementov urana in gadolinija (ISO 16424:2012)
Standard ISO 16424:2012 se uporablja za vrednotenje homogenosti porazdelitve gadolinija (Gd) v gadolinijevih gorivnih mešanicah in ugotavljanje vsebnosti Gd203 v sintranih gadolinijevih gorivnih peletih Gd2O3+UO2 od 1 % do 10 % na podlagi merjenja elementov gadolinija (Gd) in urana (U) z uporabo atomske emisijske spektroskopije z induktivno sklopljeno plazmo (ICP-AES).
Če je po meritvah elementov Gd in U z uporabo ICP-AES dodatno uporabljena statistična metodologija, je mogoče ovrednotiti tudi homogenost porazdelitve gadolinija (Gd) v gadolinijevih gorivnih peletih. Vendar pa standard ISO 16424:2012 zajema statistično metodologijo le v omejenem obsegu.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2018
Jedrska energija - Vrednotenje homogenosti porazdelitve gadolinija (Gd) v
gadolinijevih gorivnih mešanicah in ugotavljanje vsebnosti Gd203 v gadolinijevih
gorivnih peletih z merjenjem elementov urana in gadolinija (ISO 16424:2012)
Nuclear energy - Evaluation of homogeneity of Gd distribution within gadolinium fuel
blends and determination of Gd2O3 content in gadolinium fuel pellets by measurements
of uranium and gadolinium elements (ISO 16424:2012)
.HUQHQHUJLH%HZHUWXQJGHU+RPRJHQLWlWGHU*G9HUWHLOXQJLQ*DGROLQLXP
%UHQQVWRIIJHPLVFKHQXQG%HVWLPPXQJGHV*G"2"*HKDOWHVLQ*DGROLQLXP
%UHQQVWRIIWDEOHWWHQGXUFK0HVVXQJGHU8UDQXQG*DGROLQLXP%HVWDQGWHLOH ,62
Énergie nucléaire - Évaluation de l'homogénéité de la distribution du Gd dans les
mélanges de combustibles au gadolinium et détermination de la teneur en Gd2O3 dans
les pastilles combustibles au gadolinium par mesurage des éléments uranium et
gadolinium (ISO 16424:2012)
Ta slovenski standard je istoveten z: EN ISO 16424:2017
ICS:
27.120.30 Cepljivi materiali in jedrska Fissile materials and nuclear
gorivna tehnologija fuel technology
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 16424
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2017
EUROPÄISCHE NORM
ICS 27.120.30
English Version
Nuclear energy - Evaluation of homogeneity of Gd
distribution within gadolinium fuel blends and
determination of Gd2O3 content in gadolinium fuel pellets
by measurements of uranium and gadolinium elements
(ISO 16424:2012)
Énergie nucléaire - Évaluation de l'homogénéité de la Kernenergie - Bewertung der Homogenität der Gd-
distribution du Gd dans les mélanges de combustibles Verteilung in Gadolinium-Brennstoffgemischen und
au gadolinium et détermination de la teneur en Gd2O3 Bestimmung des Gd2O3-Gehaltes in Gadolinium-
dans les pastilles combustibles au gadolinium par Brennstofftabletten durch Messung der Uran- und
mesurage des éléments uranium et gadolinium (ISO Gadolinium-Bestandteile (ISO 16424:2012)
16424:2012)
This European Standard was approved by CEN on 13 September 2017.
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
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Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16424:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
The text of ISO 16424:2012 has been prepared by Technical Committee ISO/TC 85 “Nuclear energy,
nuclear technologies, and radiological protection” of the International Organization for Standardization
(ISO) and has been taken over as EN ISO 16424:2017 by Technical Committee CEN/TC 430 “Nuclear
energy, nuclear technologies, and radiological protection” the secretariat of which is held by AFNOR.
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 April 2018, and conflicting national standards shall be
withdrawn at the latest by April 2018.
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, 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 16424:2012 has been approved by CEN as EN ISO 16424:2017 without any modification.
INTERNATIONAL ISO
STANDARD 16424
First edition
2012-12-01
Nuclear energy — Evaluation of
homogeneity of Gd distribution
within gadolinium fuel blends and
determination of Gd O content
2 3
in gadolinium fuel pellets by
measurements of uranium and
gadolinium elements
Énergie nucléaire — Évaluation de l’homogénéité de la distribution
du Gd dans les mélanges de combustibles au gadolinium et
détermination de la teneur en Gd O dans les pastilles combustibles
2 3
au gadolinium par mesurage des éléments uranium et gadolinium
Reference number
ISO 16424:2012(E)
©
ISO 2012
ISO 16424:2012(E)
© ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any
means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the
address below or ISO’s member body in the country of the requester.
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ii © ISO 2012 – All rights reserved
ISO 16424:2012(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Apparatus . 2
4.1 High dispersion direct reading ICP-AES . 2
4.2 Analytical balance. 2
4.3 Small stainless steel spoon . 2
5 Reagents . 2
6 Reference solutions . 2
6.1 Gadolinium element reference solutions . 2
6.2 Uranium element reference solutions . 3
7 Sample preparation . 3
7.1 Sample preparation for evaluation of Gd homogeneity in gadolinium fuel blend . 3
7.2 Sample preparation for determining the Gd O content of Gd fuel pellets . 3
2 3
8 Calibration and analysis of the samples . 3
8.1 Calibration of Gd peak line intensity . 3
8.2 Calibration of U peak line intensity . 3
8.3 Evaluation of Gd homogeneity in gadolinium fuel blend . 3
8.4 Determination of Gd O content in gadolinium fuel pellet . 4
2 3
9 Precision . 6
10 Test report . 6
Annex A (informative) Calibration and Gd and U measurement uncertainties .7
Annex B (informative) Derivation of O/M and O/U ratio formulas .10
Annex C (informative) Evaluation of Gd O measurement precision .12
2 3
Bibliography .15
ISO 16424:2012(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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electrotechnical standardization.
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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 16424 was prepared by Technical Committee ISO/TC 85, Nuclear Energy, Nuclear Technologies, and
Radiological Protection, Subcommittee SC 5, Nuclear Fuel Cycle.
iv © ISO 2012 – All rights reserved
INTERNATIONAL STANDARD ISO 16424:2012(E)
Nuclear energy — Evaluation of homogeneity of
Gd distribution within gadolinium fuel blends and
determination of Gd O content in gadolinium fuel pellets
2 3
by measurements of uranium and gadolinium elements
1 Scope
This International Standard is applicable to the evaluation of the homogeneity of Gd distribution within
gadolinium fuel blends, and the determination of the Gd O content in sintered fuel pellets of Gd O +UO
2 3 2 3 2
from 1 % to 10 %, by measurements of gadolinium (Gd) and uranium (U) elements using ICP-AES.
After performing measurements of Gd and U elements using ICP-AES, if statistical methodology is
additionally applied, homogeneity of Gd distribution within a Gd fuel pellet lot can also be evaluated.
However, this International Standard covers the statistical methodology only on a limited basis.
NOTE 1 ISO 16796 also provides a method for Gd O content determination by atomic emission spectrometry
2 3
using an inductively coupled plasma source (ICP-AES). The methodology of ISO 16796 is different from the one of
this International Standard.
NOTE 2 In this In
...
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