ISO INTERNATIONAL STANDARD 15366-1 First edition 2014-07-01 Nuclear fuel technology Chemical separation and purification of uranium and plutonium in nitric acid solutions for isotopic and isotopic dilution analysis by solvent extraction chromatography Part 1: Samples containing plutonium in the microgram range and uranium in the milligram range Technologie du combustible nucléaire - Séparation et purification chimiques de I'uranium et du plutonium dans les solutions d'acide nitrique par extraction chromatographique par solvant pour les mesures isotopigues et les analyses par dilution isotopique- Partie 1: Echantillons ayant des teneurs en plutonium de I'ordre du microgramme et en uranium de I'ordre du milligramme Reference number IS0 15366-1:2014(E) LSO Copyright International Organization for Standardization @ IS0 2014 nse from IHS Not for Resale IS0 15366-1:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 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 Case postale 56:CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved No reproductic networking permited without license from IHS Not for Resale IS0 15366-1:2014(E) Contents Page Foreword ..iv 1 Scope .1 2 Principle ofthe method. 3 Apparatus 4 Reagents 5 Procedure (see Figure 1). ..2 6 Characteristics ofthe separation ..4 7 Quality control ..5 8 Interferences 5 Annex A (normative) Packing and conditioning of the chromatographic columns as used in the Is0 15366 1 procedure, loaded with an inert silica support coated with tri-n-octyl phosphine-oxide (TOPO) Bibliography .10 Copyriatnteatinal organiason t? Sanaizal rights reserved iii d by IHS under se with IS ed without license from IHS Not for Resale