1、BSI Standards PublicationBS ISO 5074:2015Hard coal Determination ofHardgrove grindability indexBS ISO 5074:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 5074:2015.It supersedes BS 1016-112:1995 which is withdrawn.The UK participation in its preparation w
2、as 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 does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. Th
3、e British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 82851 5ICS 73.040Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 Octo
4、ber 2015.Amendments/corrigenda issued since publicationDate Text affectedBS ISO 5074:2015 ISO 2015Hard coal Determination of Hardgrove grindability indexHouille Dtermination de lindice de broyabilit HardgroveINTERNATIONAL STANDARDISO5074Third edition2015-10-01Reference numberISO 5074:2015(E)BS ISO 5
5、074:2015ISO 5074:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including
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7、2 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 5074:2015ISO 5074:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 1 ISO 2015 All rights reserved iiiContents PageBS ISO 5074:2015ISO 5074:2015(E)ForewordISO (the International O
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14、his document is ISO/TC 27, Solid mineral fuels, Subcommittee SC 5, Methods of analysis.This third edition cancels and replaces the second edition (ISO 5074:1994), which has been technically revised.iv ISO 2015 All rights reservedBS ISO 5074:2015ISO 5074:2015(E)IntroductionThe Hardgrove grindability
15、test and test machinery are designed and developed to characterize the relative grindability of coals. The Hardgrove grindability index represents a composite physico-mechanical property of the coal, embracing a number of specific properties such as hardness, strength, tenacity and fracture, and is
16、a function primarily of coal rank and secondarily of coal type. Two of the important variables that can influence the result of this determination are the method of sample preparation, which involves selective grinding of the coal, and the moisture content of the coal. The Hardgrove grindability ind
17、ex is used empirically to estimate the capacity and power consumption of a pulverizer, given a specified product fineness. ISO 2015 All rights reserved vBS ISO 5074:2015BS ISO 5074:2015Hard coal Determination of Hardgrove grindability index1 ScopeThis International Standard specifies the method for
18、determining the grindability index of hard coal using the Hardgrove machine. It also specifies the procedure for calibrating the test machine and for preparing the standard reference coal samples.NOTE In this International Standard, the term “hard coal” is used as an indication of maturity or rank i
19、n the coalification sequence and is not related to the physical properties of the coal.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For
20、undated references, the latest edition of the referenced document (including any amendments) applies.ISO 13909, Hard coal and coke Mechanical samplingISO 18283, Hard coal and coke Manual samplingASTM D409, Standard Test Method for Grindability of Coal by the Hardgrove-Machine Method3 Terms and defin
21、itionsFor the purposes of this document, the following terms and definitions apply.3.1hard coalcoal having a gross calorific value of more than 24 MJ/kg on a moist, ash-free basis4 PrincipleSamples shall be collected and prepared using ISO 13909 and ISO 18283.Treatment of a prepared sample of coal o
22、f limited size range under defined conditions in a laboratory apparatus of standardized design (calibrated Hardgrove machine). Derivation of the grindability index from sieve analysis of the ground product and by reference to a calibration chart prepared from standard reference material.For all rela
23、ted equipment requirements, sample preparation, test procedure and reporting shall be in accordance with ASTM D409.INTERNATIONAL STANDARD ISO 5074:2015(E) ISO 2015 All rights reserved 1BS ISO 5074:2015ISO 5074:2015(E) ISO 2015 All rights reservedICS 73.040Price based on 1 pageThis page deliberately
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