ISO INTERNATIONAL STANDARD 16591 First edition 2010-12-15 Petroleum products Determination of sulfur content Oxidative microcoulometry method Produits pétroliers-Dosage du soufre - Méthode par microcoulometrieoxydante Reference number ISO 16591:2010(E) @ISO 2010 by IHS under lic itted without license from IHS Not for Resale ISO 16591:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In COPYRIGHTPROTECTEDDOCUMENT @ISO2010 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 memberbody 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 @ ISO 2010 - All rights reserved ed without license from IHS Not for Resale ISO 16591:2010(E) Contents Page Foreword 1 Scope 2 Normative references 3 Principle . 4 Reagents and materials . 5 Apparatus.. 3 6 Samples and sampling.. 7 Apparatuspreparation.... 7.1 Titration cell.... 7.2 Microcoulometer and recorder 7.3 Heating tape...... 7.4 Typical operating conditions .. 8 Apparatus verification and calibration curve construction . 9 Procedure 10 Calculation 11 Expression of results. .8 12 Precision .8 12.1 General 8 12.2 Repeatability, .9 12.3 Reproducibility, R 6 13 Test report.. Annex A (informative) Determination of sulfur contents below 1 mg/kg - Standby technique..... Annex B (informative) Troubleshooting ... Annex C (informative) Calculation of sulfur content from electrochemical data .. Bibliography.... CopyrghtInternational OrganizaionSadardizaoghtsreserved ili se from IHS Not for Resale