ISO INTERNATIONAL STANDARD 18512 First edition 2007-08-15 Soil quality Guidance on long and short term storage of soil samples Qualité du sol- Lignes directrices relatives au stockage des échantillons de sol a long et a court termes Reference number ISO 18512:2007(E) @ISO2007 ISO18512:2007(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 fle 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. COPYRIGHTPROTECTEDDOCUMENT ?ISO2007 All rights reserved. Unless otherwise specified, no Part of this publication may be reproduced or utilized in any form or by any means, 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 + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2007 - All rights reserved ISO 18512:2007(E) Contents Page Foreword. iv Introduction 1 Scope 2 Normative references . 3 Terms and definitions 4 General comments on soil storage. 5 Change in soil properties during storage 6 Storage conditions .... 6.1 General. 6.2 Light 6.3 Temperature 6.4 Humidity.. 6.5 Accessibility, security, documentation and quality control. 6.6 Duration of storage..... 6.7 Containers and quantity of sample stored.. 6.8 Preparing the samples after storage .. 7 Stepwise scheme. 8 Step A: Consideration of need for further analysis and duration of storage.. 9 Step B: Consideration of parameters currently relevant to the study .. 6 10 Step C: Consideration of parameters which may be of interest in the future.. 11 Step D: Consideration of how each of these parameters may be affected by storage conditions... 11.1 11.2 Soil characteristics ... 11.3 Chemical parameters. 11.4 Biological tests ... 0 12 Step E: Design of storage conditions required to avoid change in sample properties .... ....11 13 Step F: Design of documentation and labelling scheme including sample management...... 11 14 Step G: Estimation of costs for storage and documentation and comparison of these costs with available or expected funding..... 15 Test report .... 12 Annex A (normative) Storage for soi! samples Bibliography . @Is02007-All rights reserved ii ISO 18512:2007(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 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 18512 was prepared by Technical Committee ISO/TC 190, Soil quality, Subcommittee SC 2, Sampling i @IsO2007-Allrightsreserved ISO 18512:2007(E) Introduction conditions may determine whether or not the samples will be suitable for the in