ISO INTERNATIONAL STANDARD 1953 Third edition 2015-11-15 Hard coal - Size analysis by sieving Houille - Analyse granulométrique par tamisage Reference number ISO 1953:2015(E) @IS02015 IS0 1953:2015(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2015, Published in Switzerland All 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 photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax+41227490947 [email protected] www.iso.org ii @ IS0 2015 - All rights reserved IS0 1953:2015(E) Contents Page Foreword iv Introduction 1 Scope 2 Normative references.. 3 Terms and definitions 4 Apparatus. 4.1 For all methods. 4.2 For dry sieving... 4.3 For wet sieving. 5 Sampling of test sample..... 5.1 General. 5.2 Drying.... 5.3 Division(otherthanwetcoalofnominaltopsizelessthan4mm) 5.4 Division of wet coal of nominal top size less than 4 mm 6 Procedur 6.1 General 6.2 Dry sieving ... 6.2.1 Sample of maximum particle size greater than 22,4 mm. 6.2.2 Sample of maximum particle size between 4 mm and 22,4 mm- manualmethod..... .5 6.2.3 Sample of maximum particle size less than 4 mm-manual method .. 5 6.2.4 Sample of maximum particle size between 4 mm and 22,4 mm; minus 4 mmmechanical method .. .6 6.3 Wet sieving.. .6 7 Expression of results. 7.1 Calculation... 7.2 Graphical presentation 8 Test report... Annex A (informative) Guide to sampling. .12 Annex B (informative) Example of removal by wet sieving of fine material from a sample having a maximum particle size less than 4 mm. .13 @ IS0 2015 - All rights reserved iii