BS ISO 7404-2-2009 en_8164 Methods for the petrographic analysis of coals - Methods of preparing coal samples《煤的岩相分析方法.煤样制备方法》.pdf
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1、BS ISO 7404-2:2009 ICS 73.040; 75.160.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Methods for the petrographic analysis of coals Part 2: Methods of preparing coal samplesThis British Standard was published under the authority of the Standards Policy and
2、 Strategy Committee on 30 November 2009 BSI 2009 ISBN 978 0 580 56502 1 Amendments/corrigenda issued since publication Date Comments BS ISO 7404-2:2009 National foreword This British Standard is the UK implementation of ISO 7404-2:2009. It supersedes BS 6127-2:1982 which is withdrawn. The UK partici
3、pation in its preparation was entrusted to Technical Committee PTI/16, Solid mineral fuels. 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 responsibl
4、e for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations.BS ISO 7404-2:2009Reference number ISO 7404-2:2009(E) ISO 2009INTERNATIONAL STANDARD ISO 7404-2 Second edition 2009-10-01 Methods for the petrographic analysis of coals Part 2: Methods of
5、preparing coal samples Mthodes danalyse ptrographique des charbons Partie 2: Prparation des chantillons de charbon BS ISO 7404-2:2009 ISO 7404-2:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but sha
6、ll not be edited unless 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.
7、 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
8、ISO member bodies. In 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 2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any f
9、orm 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 country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 0
10、9 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2009 All rights reservedBS ISO 7404-2:2009 ISO 7404-2:2009(E) ISO 2009 All rights reserved iiiContents Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Definitions 1 4 Principle .1 5 Reagents and materials 1 6
11、Apparatus.2 7 Procedure.3 Annex A (informative) Examples of procedures for the preparation of a polished particulate block suitable for petrographic analysis from a sample of crushed coal .6 BS ISO 7404-2:2009 ISO 7404-2:2009(E) iv ISO 2009 All rights reservedForeword ISO (the International Organiza
12、tion for Standardization) is 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
13、has the right to be represented 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. In
14、ternational Standards are drafted 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. Publi
15、cation 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 r
16、ights. ISO 7404-2 was prepared by Technical Committee ISO/TC 27, Solid mineral fuels. This second edition cancels and replaces the first edition (ISO 7404-2:1985),which has been technically revised. ISO 7404 consists of the following parts, under the general title Methods for the petrographic analys
17、is of coals: Part 1: Vocabulary 1) Part 2: Methods of preparing coal samples Part 3: Method of determining maceral group composition Part 4: Methods of determining microlithotype, carbominerite and minerite composition 1) Part 5: Method of determining microscopically the reflectance of vitrinite 1)
18、Parts 1 and 4 of this International Standard will be available under the original title, Methods for the petrographic analysis of bituminous coal and anthracite, until the revisions of these documents have reached the stage at which they are publicly available. BS ISO 7404-2:2009 ISO 7404-2:2009(E)
19、ISO 2009 All rights reserved vIntroduction Petrographic analyses have been recognized internationally as important in the context of the genesis, vertical and lateral variation, continuity, metamorphism and usage of coal. The International Committee for Coal Petrology (ICCP) has made recommendations
20、 concerning nomenclature and analytical methods and has published an extensive handbook that is continuously updated, describing in detail the characteristics of a wide range of coals. The text of this part of ISO 7404 agrees substantially with the text of the handbook and incorporates many useful c
21、omments made by members of the ICCP and by member bodies of ISO/TC 27, Solid mineral fuels. Petrographic analyses of single-seam coals provide information about the rank, the maceral and microlithotype compositions and the distribution of mineral matter in the coal. The reflectance of vitrinite is a
22、 useful measure of coal rank and the distribution of the reflectance of vitrinite in a coal blend. Together with a maceral group analysis, it can provide information about chemical and technological properties of the coal and coal blend. Various other applications, like the characterization of bulk
23、samples, cargoes, etc., and the precise determination of different rank vitrinites in complex coal blends are in use. ISO 7404 (all parts) is concerned with the methods of petrographic analysis currently employed in characterizing coal in the context of its technological use and establishes a system
24、 for petrographic analysis. The method is applicable for low-, medium- and high-rank coals. The varied petrographic composition and hardness of coal and the type and amount of included mineral matter does not permit the formulation of a precise procedure that can be applied with equal success to all
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