EN ISO 12183:2024

SLOVENSKI STANDARD
01-julij-2024
Tehnologija jedrskih goriv - Kulometrična meritev plutonija z nadzorovanim
potencialom (ISO 12183:2024)
Nuclear fuel technology - Controlled-potential coulometric measurement of plutonium
(ISO 12183:2024)
Kernbrennstofftechnologie - Coulometrische Bestimmung von Plutonium mit
kontrolliertem Potential (ISO 12183:2024)
Technologie du combustible nucléaire - Dosage du plutonium par coulométrie à potentiel
imposé (ISO 12183:2024)
Ta slovenski standard je istoveten z: EN ISO 12183:2024
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 12183
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2024
EUROPÄISCHE NORM
ICS 27.120.30 Supersedes EN ISO 12183:2019
English Version
Nuclear fuel technology - Controlled-potential coulometric
measurement of plutonium (ISO 12183:2024)
Technologie du combustible nucléaire - Dosage du Kernbrennstofftechnologie - Coulometrische
plutonium par coulométrie à potentiel imposé (ISO Bestimmung von Plutonium mit kontrolliertem
12183:2024) Potential (ISO 12183:2024)
This European Standard was approved by CEN on 21 January 2024.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12183:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 12183:2024) has been prepared by Technical Committee ISO/TC 85 "Nuclear
energy, nuclear technologies, and radiological protection" in collaboration with 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 November 2024, and conflicting national standards
shall be withdrawn at the latest by November 2024.
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 12183:2019.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 12183:2024 has been approved by CEN as EN ISO 12183:2024 without any modification.

International
Standard
ISO 12183
Fourth edition
Nuclear fuel technology —
2024-05
Controlled-potential coulometric
measurement of plutonium
Technologie du combustible nucléaire — Dosage du plutonium
par coulométrie à potentiel imposé
Reference number
ISO 12183:2024(en) © ISO 2024
ISO 12183:2024(en)
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 12183:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 2
6 Apparatus . 2
7 Procedure . 8
7.1 Plutonium determination .8
7.2 Analysis of subsequent test samples . .14
8 Expression of quantity values . 14
8.1 Calculation of the electrical calibration factor .14
8.2 Calculation of the blank . 15
8.3 Fraction of electrolysed plutonium . 15
8.4 Plutonium, amount of substance and mass .16
8.5 Quality control .16
9 Characteristics of the method . 17
9.1 Repeatability .17
9.2 Confidence interval .17
9.3 Analysis time .17
10 Interferences . 17
11 Procedure variations and optimization .21
11.1 Accountability measurements and reference material preparation .21
11.2 Process control measurements .21
11.3 Measurement cell design . 22
11.4 Electrolyte and electrode options . 22
11.5 Test sample size . 22
11.6 Background current corrections . 23
11.7 Correction for iron . 23
11.8 Control-potential adjustment .24
11.9 Calibration methodologies . 25
12 Traceability to SI units .25
Annex A (informative) Purification by anion-exchange separation .26
Annex B (informative) Determination of formal potential, E .28
Bibliography .29

iii
ISO 12183:2024(en)
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,
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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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect
...