ISO INTERNATIONAL STANDARD 11272 Second edition 2017-03 Soil quality - Determination of dry bulk density Qualitedu sol-Determination de la massevolumiqueapparente seche Referencenumber IS011272:2017(E) Intemational Organization for Standardization @IS02017 =ZHEJIANG INSTOFSTANDARDIZATIONC15956617 itted without license from IHS IS0 11272:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS02017,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 +4122 749 09 47 [email protected] www.iso.org Uicensee-ZHEJIANG INSTOF STANDARDIZRoISQl.7 -All rights reserved etworking permitted without license from IHS Not for Resale, 2017/5/11 02:05:26 IS0 11272:2017(E) Contents Page Foreword ..iv Introduction.. 1 Scope. 2 Normative references ... 3 Terms and definitions .1 4 Test procedures. .2 4.1 Core method 2 4.1.1 Principle 2 4.1.2 Apparatus. 22 4.1.3 Sampling and drying. 4.1.4 Calculation 3 4.2 Excavation method .3 4.2.1 Principle. 3 4.2.2 Apparatus .3 4.2.3 Field procedure 4 4.2.4 Laboratory procedure 4 4.2.5 Calculation .5 4.3 Substitutemethods .6 4.4 Clodmethod .1 4.4.1 Principle 7 4.4.2 Apparatus. .7 4.4.3 Procedure. .8 4.4.4 Calculation ..8 4.4.5 Unifiedreferencetemperature .9 5 Testreport .9 Annex A (informative) Volume measurement using plastic balls ..10 AnnexB (normative)Density ofwater atdifferenttemperatures ..11 Bibliography ..14 Intemainal oganzation @stS.20.17 - All rights reserved iii See=ZHEJIANG INSTOFSTANDARDIZATION C15956617 vithoutlicense from IHS