BS ISO 687-2010 Solid mineral fuels Coke Determination of moisture in the general analysis test sample《固体矿物燃料 焦炭 一般分析试样中水分的测定》.pdf
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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 687:2010Solid mineral fuels Coke Determination of moisturein the general analysis testsampleBS ISO 687:2010 BRITISH STANDARDNational forewordThis British Standard is the U
2、K implementation of ISO 687:2010. Itsupersedes BS ISO 687:2004 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PTI/16, Solid mineral fuels.A list of organizations represented on this committee can beobtained on request to its secretary.This publication
3、does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 70437 6ICS 75.160.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority
4、of theStandards Policy and Strategy Committee on 30 November 2010.Amendments issued since publicationDate Text affectedBS ISO 687:2010Reference numberISO 687:2010(E)ISO 2010INTERNATIONAL STANDARD ISO687Third edition2010-06-15Solid mineral fuels Coke Determination of moisture in the general analysis
5、test sample Combustibles mineraux solides Coke Dtermination de lhumidit de lchantillon pour analyse BS ISO 687:2010ISO 687:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unles
6、s the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark
7、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
8、the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2010 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, e
9、lectronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs 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 copyrighti
10、so.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedBS ISO 687:2010ISO 687:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Definitions 1 4 Principle1 5 Apparatus.1 6 Preparation of the test sample.2 7 Proc
11、edure.2 8 Expression of results2 9 Precision.3 10 Test report3 BS ISO 687:2010ISO 687:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internation
12、al 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 represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO,
13、 also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical comm
14、ittees 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 p
15、ossibility 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 687 was prepared by Technical Committee ISO/TC 27, Solid mineral fuels, Subcommittee SC 5, Methods of analysis. This third e
16、dition cancels and replaces the second edition (ISO 687:2004), of which it constitutes a minor revision. BS ISO 687:2010ISO 687:2010(E) ISO 2010 All rights reserved vIntroduction The determination of the moisture in the general analysis test sample is required to correct the results of certain analy
17、tical determinations, e.g. volatile matter and hydrogen, for the effect of water in the determination and to allow all determinations to be corrected to a dry basis. Since coke is hygroscopic, its moisture varies with a change in humidity of the atmosphere, and it is required, therefore, that the mo
18、isture in the general analysis test sample be determined whenever portions are weighed out for other analytical determinations. If test portions for several analytical determinations are weighed out at the same time, a single simultaneous moisture determination suffices to correct these analyses. BS
19、 ISO 687:2010BS ISO 687:2010INTERNATIONAL STANDARD ISO 687:2010(E) ISO 2010 All rights reserved 1Solid mineral fuels Coke Determination of moisture in the general analysis test sample 1 Scope This International Standard specifies a method for determining the moisture in the general analysis test sam
20、ple of coke. It can be used for the determination of moisture in blast-furnace coke, foundry-coke and other high-temperature carbonization products. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the editio
21、n cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1213-2, Solid mineral fuels Vocabulary Part 2: Terms relating to sampling, testing and analysis 3 Definitions For the purposes of this International Standard, the definition
22、s given in ISO 1213-2 apply. 4 Principle A known mass of the coke is heated in air at 120 C to 200 C and maintained at this temperature until a constant mass is obtained. The moisture content is calculated from the loss in mass of the coke. Coke is not liable to oxidation under the conditions stated
23、. 5 Apparatus 5.1 Analytical balance, capable of weighing to the nearest 0,1 mg. 5.2 Oven, capable of being controlled at a temperature of 120 C to 200 C and with a means to allow a flow of air or nitrogen. 5.3 Weighing dish, shallow, of glass or of corrosion-resistant metal, with a well fitting cov
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