Re-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets (ISO 15646:2014)

ISO 15646:2014 describes a procedure for measuring the densification of UO2, (U,Gd)O2, and (U,Pu)O2 pellets, achieved by heat treatment under defined conditions.
The densification of fuel in power operation is an important design feature. Essentially, it is dependent on structural parameters such as pore size, spatial pore distribution, grain size, and in the case of (U,Gd)O2 and (U,Pu)O2, oxide phase structure. A thermal re-sintering test can be used to characterize the dimensional behaviour of the pellets under high temperature. The results of this test are used by the fuel designer to predict dimensional behaviour in the reactor, because thermal densification in the reactor is also dependent on these structural parameters, albeit in a differing manner in terms of quantity.

Nachsintertest für UO2-, (U,Gd)O2- und (U,Pu)O2-Pellets (ISO 15646:2014)

Test de refrittage pour pastilles UO2, (U,Gd)O2 et (U,Pu)O2 (ISO 15646:2014)

L'ISO 15646:2014 décrit un mode opératoire de mesurage de la densification de pastilles de UO2, (U,Gd)O2 et (U,Pu)O2 par traitement thermique dans des conditions définies.
La densification du combustible en réacteur est une caractéristique de conception essentielle. Elle dépend principalement de paramètres structuraux comme la taille des pores, la distribution des pores dans l'espace, la taille des grains, et dans le cas des pastilles (U,Gd)O2 et (U,Pu)O2, de la structure de la phase d'oxyde. Il est possible d'avoir recours à un test de refrittage thermique afin de caractériser le comportement dimensionnel des pastilles à haute température. Les résultats de ce test sont utilisés par le concepteur de combustible afin de prévoir le comportement dimensionnel des pastilles dans le réacteur car la densification thermique dans le réacteur dépend aussi de ces paramètres structuraux, dans des proportions différentes.

Preskus s posintranjem za pelete UO2, (U,Gd)O2 in (U,Pu)O2 (ISO 15646:2014)

Standard ISO 15646:2014 opisuje postopek za merjenje zgoščevanja peletov UO2, (U,Gd)O2 in (U,Pu)O2, doseženega s toplotno obdelavo v definiranih pogojih. Zgoščevanje goriva kot vira energije je pomembna oblikovna značilnost. V osnovi je odvisna od strukturnih parametrov, kot so velikost por, prostorska porazdelitev por, velikost zrn ter (v primeru (U,Gd)O2 in (U,Pu)O2) strukture oksidne faze. Preskus termičnega ponovnega sintranja je mogoče uporabiti za opis dimenzionalnega vedenja peletov pri visoki temperaturi. Projektant goriva uporabi rezultate tega preskusa za napovedovanje dimenzionalnega vedenja v reaktorju, saj je toplotno zgoščevanje v reaktorju odvisno tudi od teh strukturnih parametrov, čeprav v smislu količine na drugačen način.

General Information

Status
Published
Publication Date
19-Apr-2016
Withdrawal Date
30-Oct-2016
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
20-Apr-2016
Due Date
25-May-2017
Completion Date
20-Apr-2016

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SLOVENSKI STANDARD
SIST EN ISO 15646:2016
01-junij-2016
Preskus s posintranjem za pelete UO2, (U,Gd)O2 in (U,Pu)O2 (ISO 15646:2014)
Re-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets (ISO 15646:2014)
Nachsintertest für UO2-, (U,Gd)O2- und (U,Pu)O2-Pellets (ISO 15646:2014)
Test de refrittage pour pastilles UO2, (U,Gd)O2 et (U,Pu)O2 (ISO 15646:2014)
Ta slovenski standard je istoveten z: EN ISO 15646:2016
ICS:
27.120.30 Cepljivi materiali in jedrska Fissile materials and nuclear
gorivna tehnologija fuel technology
SIST EN ISO 15646:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 15646:2016

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SIST EN ISO 15646:2016


EN ISO 15646
EUROPEAN STANDARD

NORME EUROPÉENNE

April 2016
EUROPÄISCHE NORM
ICS 27.120.30
English Version

Re-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets
(ISO 15646:2014)
Test de refrittage pour pastilles UO2, (U,Gd)O2 et Nachsintertest für UO2-, (U,Gd)O2- und (U,Pu)O2-
(U,Pu)O2 (ISO 15646:2014) Pellets (ISO 15646:2014)
This European Standard was approved by CEN on 21 February 2016.

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, 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: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15646:2016 E
worldwide for CEN national Members.

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SIST EN ISO 15646:2016
EN ISO 15646:2016 (E)
Contents Page
European foreword . 3
2

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SIST EN ISO 15646:2016
EN ISO 15646:2016 (E)
European foreword
The text of ISO 15646:2014 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 15646:2016 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 October 2016, and conflicting national standards shall
be withdrawn at the latest by October 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] 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, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 15646:2014 has been approved by CEN as EN ISO 15646:2016 without any modification.

3

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SIST EN ISO 15646:2016

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SIST EN ISO 15646:2016
INTERNATIONAL ISO
STANDARD 15646
First edition
2014-06-15
Re-sintering test for UO , (U,Gd)O
2 2
and (U,Pu)O pellets
2
Test de refrittage pour pastilles UO , (U,Gd)O et (U,Pu)O
2 2 2
Reference number
ISO 15646:2014(E)
©
ISO 2014

------
...

SLOVENSKI STANDARD
kSIST FprEN ISO 15646:2015
01-november-2015
Preskus s posintranjem za UO2-, (U,Gd)O2- in (U,Pu)O2 - pelete (ISO 15646:2014)
Re-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets (ISO 15646:2014)
Nachsintertest für UO2-, (U,Gd)O2- und (U,Pu)O2-Pellets (ISO 15646:2014)
Test de refrittage pour pastilles UO2, (U,Gd)O2 et (U,Pu)O2 (ISO 15646:2014)
Ta slovenski standard je istoveten z: FprEN ISO 15646
ICS:
27.120.30 Fisijski materiali Fissile materials
kSIST FprEN ISO 15646:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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kSIST FprEN ISO 15646:2015


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kSIST FprEN ISO 15646:2015

EUROPEAN STANDARD
FINAL DRAFT
FprEN ISO 15646
NORME EUROPÉENNE

EUROPÄISCHE NORM

August 2015
ICS 27.120.30
English Version
Re-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets (ISO
15646:2014)
Test de refrittage pour pastilles UO2, (U,Gd)O2 et (U,Pu)O2 Nachsintertest für UO2-, (U,Gd)O2- und (U,Pu)O2-Pellets
(ISO 15646:2014) (ISO 15646:2014)
This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical
Committee CEN/TC 430.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.

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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprEN ISO 15646:2015 E
worldwide for CEN national Members.

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kSIST FprEN ISO 15646:2015
FprEN ISO 15646:2015 (E)
Contents Page
European foreword .3
2

---------------------- Page: 4 ----------------------

kSIST FprEN ISO 15646:2015
FprEN ISO 15646:2015 (E)
European foreword
The text of ISO 15646:2014 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 FprEN ISO 15646:2015 by Technical Committee CEN/TC 430 “Nuclear energy, nuclear
technologies, and radiological protection” the secretariat of which is held by AFNOR.
This document is currently submitted to the Unique Acceptance Procedure.
Endorsement notice
The text of ISO 15646:2014 has been approved by CEN as FprEN ISO 15646:2015 without any modification.
3

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kSIST FprEN ISO 15646:2015


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kSIST FprEN ISO 15646:2015
INTERNATIONAL ISO
STANDARD 15646
First edition
2014-06-15
Re-sintering test for UO , (U,Gd)O
2 2
and (U,Pu)O pellets
2
Test de refrittage pour pastilles UO , (U,Gd)O et (U,Pu)O
2 2 2
Reference number
ISO 15646:2014(E)
©
ISO 2014

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kSIST FprEN ISO 15646:2015
ISO 15646:2014(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2014
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
the requester.
ISO copyright office
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...

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