BS ISO 21613:2015 BS Standards Publication (U, Pu)O2 Powders and sintered pellets Determination of chlorine and fluorine bsi. ..making excellenCe a habit. BS ISO 21613:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 21613:2015. The UK participation in its preparation was entrusted to Technical Committee NCE/9, Nuclear fuel cycle technology. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @The British Standards Institution 2015.Published by BSI Standards Limited 2015 ISBN9780580769047 ICS 27.120.20 Compliance witha BritishStandard cannot conferimmunityfrom legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2015. Amendments issued since publication Date Text affected BS ISO 21613:2015 ISO 21613 INTERNATIONAL STANDARD First edition 2015-06-15 (U, Pu)O2 Powders and sintered pellets Determination of chlorine and fluorine Poudres et pastilles frittees (U,Pu)o2-Détermination du chlore et du fluor EIE SO ISORg fesa1c2 og bEy @IS02015 BSISO21613:2015 IS021613:2015(E) COPYRIGHTPROTECTEDDOCUMENT ISO2015, Published in Switzerland AHbyghty rasansedlalestronicotherwipenifiedlaniclaindfiuthisgpplbbicatbpyimgyoltqnsthgintprndtioedntnttiaet) otineamyisovithout 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. fsodecparibh Aeics 3·CP401 CH-1214 Vernier, Geneva, Switzerland Tel.+41 22 749 0111 Fax +41 22 749 09 [email protected] 47 www.iso.org ii @ IS0 2015 - All rights reserved BSISO 21613:2015 IS0 21613:2015(E) Contents Page Foreword iv Scope 1 2 Normativereferences .1 3 Principle 1 4 Reagents 1 5 Equipment 4 5.1 Standard laboratory equipment 4 5.5 Ionanalysis measuringwith selectiveelectrode equipment 5 6 Operatingprocedure 6 6.1 Sample pyrohydrolysis 6 6.1.1 Blank test. .6 6:1.3 (U,Pu)02 powderesample 6 6.1.4 Pyrohydrolysis .6 6.2 Measurement of pyrohydrolysis solutions. 8 Measurement by geiectivecfletfradgraphy. 6.2.1 8 6.3 Expression of results. 9 6.3.1 Calculation. .9 Vblidation iamitslimits 6.3.2 10 6.3.4 Determinationuncertainty 11 7 Test report. .11 Bibliography .12 @ IS0 2015- All rights reserved ili BS ISO 21613:2015 IS021613:2015(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards thundiegh(IsO tecamicet codbiesfthsewofkaf ptapbeingbodyInitteresitedailhStandebjdsti soowhidhycarrtiechaital committeehasbeen established hastherighttoberepresentedonthatcommittee.International organizations, governmental and non-governmental, in liaison with IsO,alsotake part in the work. ISO collaborates closely withthe electrotechnical standardization.International Electrotechnical Commission (IEC)on allmatters of The procedures used to develop this document and those intended for its further maintenance are editorialrulesof theIsO/IEC Directives,Part2 (seewww.iso.org/directives). Rttentionrights.if&wrshtahf hetpelsibilithat somsible fbe fdlemtfryting anyafostrh aatenteay hgtbe Detaisfubfe ctany patentrightsidentifiedduringthede the Iso list of patent declarations received (see www.iso.org/patents). Any trade used in this constitute nameendorsement. document is information given for the convenience of users and does not Foran explanation onthemeaningof IsO specifictermsand expressionsrelatedto conformity tsSTradseTBT wefianfolfYinaUR'aboutSO'ewordbsppnentnthey WTOrraninles the Technical Barriers radiological protection,SubcommitteeSC 5,Nuclearfuel cycle. iv @ IS0 2015 - All rights reserved BS ISO21613:2015 INTERNATIONAL STANDARD IS021613:2015(E) (U, Pu)O2 Powders and sintered pellets - Determination of chlorine and fluorine 1 Scope This International Standard describes a method for