ISO INTERNATIONAL STANDARD 17892-12 First edition 2018-06 AMENDMENT 2 2022-03 Geotechnical investigation and testing - Laboratory testing of soil - Part 12: Determination of liquid and plastic limits AMENDMENT 2 ReconnaissanceetessaisgeotechniquesEssaisdelaboratoiresur lessols- Partie12:Déterminationdes limites de liquidité etde plasticite AMENDEMENT2 Referencenumber IS017892-12:2018/Amd.2:2022(E) ISO @ ISO 2022 IS0 17892-12:2018/Amd.2:2022(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2022 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in anyform 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 IO at the address below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch.de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland ii IS02022-Allrightsreserved IS0 17892-12:2018/Amd.2:2022(E) Foreword Iso (theInternational Organization for Standardization) is a worldwidefederation ofnational 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 has the right to be represented on that committee.International ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnicalstandardization. The procedures used to develop this document and those intended for its further maintenance are described in the Iso/IEc Directives, Part 1. In particular, the different approval criteria needed for the different types of Iso documents should be noted.This document was drafted in accordancewith the editorial rules of the ISO/lEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to thepossibilitythat someof theelements ofthisdocumentmaybethe subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. Details of anypatentrights identified duringthedevelopment of thedocument will be inthe Introductionand/or on the Iso list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constituteanendorsement. For an explanation of the voluntary nature of standards, the meaning of Iso specific terms and expressions related to conformity assessment,as well as information about Iso's adherenceto the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html This document was prepared by Technical Committee ISo/TC 182, Geotechnics, in collaboration with theEuropeanCommitteeforStandardization(CEN)TechnicalCommitteeCEN/TC341,Geotechnical Investigation and Testing, in accordance with the Agreement on technical cooperation between IsO and CEN (Vienna Agreement). Alist ofallparts intheIS017892series canbefound ontheISOwebsite Any feedback or questions on this document should be directed to the user's national standards body. A complete listing of these bodies can be found at www.iso.org/members.html. @ IS02022-All rights reserved ii