ISO INTERNATIONAL STANDARD 11464 Secondedition 2006-07-01 Soil quality Pretreatment of samples for physico-chemical analysis Qualite du solPretraitement des échantillons pour analyses physico- chimiques Reference number ISO 11464:2006(E) ISO @ ISO 2006 ISO 11464:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimizedforprinting.Every care has been taken to ensure thatthe file is suitableforuse by isO member bodies. In the @ISO2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IsO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax+41227490947 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2006 - All rights reserved ISO11464:2006(E) Contents Page 1 Scope 2 Normative references 3 Principle 4 Apparatus 3 5 Procedure 3 5.1 3 5.2 Sample description 5.3 Drying 4 5.3.1 General 4 5.3.2 Air drying 4 5.3.3 Oven drying 4 5.3.4 Freeze-drying . 4 5.4 Crushing and removal of coarse materials 5 5.4.1 Separation of stones, etc. 5 5.4.2 Crushing .. 5 5.5Subsampling 5 5.5.1 General ... 5 5.5.2 Subsampling by hand (quartering) 6 5.5.3Use of the sample divider 6 5.5.4Mechanical subsampling 6 5.6Milling 6 6 Test report 6 Annex A (informative) Examples of apparatus 8 Bibliography 11 @ ISO 2006 - All rights reserved ili ISO 11464:2006(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national 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 organizations, governmental and non-governmental, in liaison with isO, also take part in the work. isO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. methods and soil characteristics This second edition cancels and replaces the first edition (isO 11464:1994), which has been technically revised. iv IS0 2006 - All rights reserved ISO 11464:2006(E) INTERNATIONAL STANDARD Soil quality Pretreatment of samples for physico-chemical analysis 1 Scope ThisInternationalStandardspecifiesthepretreatmentsrequiredforsoilsamplesthataretobesubjectedto physico-chemical analyses of stable and non-volatile parameters and describes the following five types of pretreatment of samples: drying, crushing, sieving, dividing and milling. The pretreatment procedures described in this International Standard are not applicable if they affect the re