ISO INTERNATIONAL STANDARD 11508 Second edition 2017-09 Soil quality Determination of particle density Qualité du sol - Détermination de la masse volumique des particules Reference number IS0 11508:2017(E) ISO @ IS0 2017 IS0 11508:2017(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2017, 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 the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax+41227490947 copyright@iso.org www.iso.org ii @ IS0 2017 - All rights reserved IS0 11508:2017(E) Contents Page Foreword .iv Introduction ..V 1 Scope. .1 2 Normative references 3 Terms and definitions 4 Procedure 1 4.1 Fine soil (<2 mm diameter) 1 4.1.1 Principle 1 4.1.2 Apparatus. 4.1.3 Sampling. 2 4.1.4 Density determination 2 4.1.5 Calculation. 2 4.2 Gravel and stones (>2 mm diameter) 3 4.2.1 Apparatus. 3 4.2.2 Density determination. 3 4.2.3 Calculation. 4 4.3 Unified reference temperature 5 4.4 Calculation of mean particle density 5 5 Test report 5 Annex A (informative) Density of water at different temperatures 6 Bibliography 9 @ IS0 2017 - All rights reserved iii