BS ISO 16592:2012 BSl Standards Publication Microbeam analysis Electron probe microanalysis - Guidelines for determining the carbon content of steels using a calibration curve method bsi. ..making excellence a habit. BS ISO 16592:2012 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 16592:2012.It supersedes BS ISO 16592:2006 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee Cll/9, Microbeam analysis. 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 2012.Published by BSI Standards Limited2012 ISBN9780580771989 ICS 71.040.50 Compliance with a British Standard cannot confer immunityfrom legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on31August 2012. Amendments issued since publication Date Textaffected BS ISO 16592:2012 INTERNATIONAL ISO STANDARD 16592 Second edition 2012-08-01 Microbeam analysis -Electron probe microanalysis Guidelines for determining the carbon content of steels using a calibration curve method Analyseparmicrofaisceaux Analyseparmicrosondeélectronique (microsondedeCastaing)-Lignesdirectricespourledosagedu carbonedans les aciersparla droite d'etalonnage Reference number ISO16592:2012(E) ISO @ISO 2012 BSISO16592:2012 ISO16592:2012(E) COPYRIGHTPROTECTEDDOCUMENT 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. ISO copyright office Casepostale 56 : CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2012 -All rights reserved BSISO16592:2012 ISO16592:2012(E) Contents Page Foreword iv 1 Scope 2 Procedure 2.1 General 2.2 Referencematerials 2.3 Specimen preparation 2.4 MeasurementofcarbonKαX-rayintensity. 2.5 Backgroundsubtraction.. 2.6 Establishmentofthecalibrationcurve 3 Evaluation of uncertainty 4 Test report Annex A (informative) Method of estimating the uncertainty of the calculated value using a calibration curve. 8 AnnexB(informative)Apractical exampleof thedeterminationof themassfractionof carbonand the evaluationofuncertaintyinasteel. 10 Bibliography. 12 @ ISO 2012 -All rights reserved ili BS ISO 16592:2012 ISO 16592:2012(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. 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. ISO16592waspreparedbyTechnicalCommitteeISO/TC202,Microbeamanalysis,SubcommitteeSC2, Electronprobemicroanalysis This second edition cancels and replaces the first edition (iSO 16592:2006), of which it constitutes a minor revision involving the following changes: charging and instructions concerning the minimization of outgassing of the specimen-mounting medium havebeenaddedtoSubclause2.3.2; inSubclause2.3.3,the meaningof carbon-free ultrasoniccleanin