ISO INTERNATIONAL STANDARD 14869-2 First edition 2002-08-01 Soil quality Dissolution for the determination of total element content - Part 2: Dissolution by alkaline fusion Qualitedusol-Mise en solution pourladétermination desteneurs elementairestotales- Partie 2:Mise en solutionparfusionalcaline Reference number ISO 14869-2:2002(E) ISO ISO 2002 ISO14869-2:2002(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 optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, 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 + 41 22 749 09 47 E-mail [email protected] Web www.iso.ch Printed in Switzerland ii @ ISO 2002 - All rights reserved ISO14869-2:2002(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.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas 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 3 Draft International Standards 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 part of IsO 14869 may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. SC3, Chemicalmethodsand soilcharacteristics. IsO 14869 consists of the following parts, under the general title Soil quality-Dissolution for the determination of totalelementcontent: Part1:Dissolutionwithhydrofluoric andperchloric acids Part2:Dissolutionbyalkalinefusion @ ISO 2002 - All rights reserved ii INTERNATIONALSTANDARD ISO14869-2:2002(E) Soil quality Dissolution for the determination of total element content - Part 2: Dissolution by alkaline fusion 1 Scope This part of Iso 14869 specifies a method for the dissolution of total contents for the following elements in soils: Na, K, Mg, Ca, Ti, Mn, Fe, Al, Si. This list is not exhaustive, and other elements are applicable for determination, provided they are not lost during the fusion process, w > (3d. Vlm) where w is the mass content of the element, expressed in milligrams per kilogram soil, d is the detection limit, in milligrams per litre, for the element and analytical method considered, 3 is a conventional factor, V is the adjusted volume, in litres, of the final solution containing the dissolved sample, and m is the mass of the test portion, in kilograms, the determination is not adversely affected by the high salt concentration in the resultant solution The flux proposed in this method is suitable