ISO-20846-2004.pdf
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1、 Reference number ISO 20846:2004(E) ISO 2004 INTERNATIONAL STANDARD ISO 20846 First edition 2004-03-15 Petroleum products Determination of sulfur content of automotive fuels Ultraviolet fluorescence method Produits ptroliers Dtermination de la teneur en soufre des carburants pour automobiles Mthode
2、par fluorescence ultraviolette Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:48:45 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 20846:2004(E
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6、2004 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 ISOs member body in the c
7、ountry 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 copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2004 All rights reserved Copyright International Organization for Standardization Provided by IHS under
8、 license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:48:45 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 20846:2004(E) ISO 2004 All rights reserved iii Contents Page Forewordiv 1 Scope1 2 Normative references .1 3 Principle.2
9、4 Reagents and materials2 5 Apparatus.3 6 Sampling4 7 Apparatus preparation5 8 Apparatus calibration and verification .5 9 Procedure.8 10 Calculation.8 11 Expression of results10 12 Precision10 13 Test report11 Bibliography .12 Copyright International Organization for Standardization Provided by IHS
10、 under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:48:45 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 20846:2004(E) iv ISO 2004 All rights reserved Foreword ISO (the International Organization for Standardization) is
11、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 represent
12、ed on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are dra
13、fted in accordance with the rules given in the ISO/IEC 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 St
14、andard 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. ISO 20846 was prepared
15、 by Technical Committee ISO/TC 28, Petroleum products and lubricants. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:48:45 MDTNo reproduction or networking permitted without
16、license from IHS -,-,- INTERNATIONAL STANDARD ISO 20846:2004(E) ISO 2004 All rights reserved 1 Petroleum products Determination of sulfur content of automotive fuels Ultraviolet fluorescence method WARNING The use of this International Standard may involve hazardous materials, operations and equipme
17、nt. This International Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this International Standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to
18、use. 1 Scope This International Standard specifies an ultraviolet (UV) fluorescence test method for the determination of the sulfur content of motor gasolines, including those containing up to 2,7 % (m/m) oxygen, and of diesel fuels, including those containing up to 5 % (V/V) fatty acid methyl ester
19、 (FAME), having sulfur contents in the range 3 mg/kg to 500 mg/kg. Other products may be analysed and other sulfur contents may be determined according to this test method; however, no precision data for products other than automotive fuels and for results outside the specified range have been estab
20、lished for this International Standard. Halogens interfere with this detection technique at concentrations above approximately 3 500 mg/kg. NOTE 1 Some process catalysts used in petroleum and chemical refining might be polluted when trace amounts of sulfur-bearing materials are contained in the feed
21、stocks. NOTE 2 This test method may be used to determine sulfur in process feeds and may also be used to control sulfur in effluents. NOTE 3 For the purposes of this International Standard, the terms “% (m/m)” and “% (V/V)” are used to represent the mass fraction and the volume fraction of a materia
22、l respectively. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1042:1
23、998, Laboratory glassware One-mark volumetric flasks ISO 3170:2004, Petroleum liquids Manual sampling ISO 3171:1988, Petroleum liquids Automatic pipeline sampling ISO 3675:1998, Crude petroleum and liquid petroleum products Laboratory determination of density Hydrometer method ISO 12185:1996, Crude
24、petroleum and petroleum products Determination of density Oscillating U-tube method (including Technical Corrigendum 1:2001) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:48
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