BS ISO BRITISHSTANDARD 19730:2008 Soil quality - Extraction of trace elements from soil using ammonium nitrate solution ICS 13.080.10 BSi British Standards BS ISO 19730:2008 National foreword This British Standard is the UK implementation of ISO 19730:2008. The UK participation in its preparation was entrusted to Technical Committee EH/4, Soil quality. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity fromlegal obligations. This British Standard Amendments/corrigenda issued since publication was published under the authority of the Standards Policy and Strategy Date Comments Committee on 31 March 2009 BSI 2009 ISBN9780580549328 BSISO19730:2008 ISO INTERNATIONAL STANDARD 19730 First edition 2008-12-01 Soil quality Extraction of trace elements from soil using ammonium nitrate solution Qualitedusol-Extractiondes élementstracesdusola I'aided'une solution de nitrate d'ammonium Referencenumber ISO 19730:2008(E) @ISO 2008 BS ISO 19730:2008 ISO19730:2008(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 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 the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTEDDOCUMENT ISO2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any fom 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-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2008 All rights reserved BSISO19730:2008 ISO19730:2008(E) Contents Page Foreword Introductior 1 Scope 2 Normativereferences 3 Principle.. 4 Reagents 5 Apparatus 6 Procedure..... 6.1 Samplepreparation. 6.2 Determiningwatercontent. 6.3 Extraction............... 6.4 Phase separation. 6.5 Stabilization of extract 6.6 Blank test... 7 Calculation 8 Expressionof results. 9 Test report AnnexA (informative)Information on method ofdetermining selected elementsandtreatmentof particulartypesof soil... AnnexB (informative)Precision. Annex C (informative)Notes on homogenization, initial samplemass and extraction... @ ISO 2008 - All rights reserved ili BSISO19730:2008 ISO19730:2008(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 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. ISO 19730 was prepared by T