ISO INTERNATIONAL STANDARD 14388-1 First edition 2014-08-01 Soil quality Acid-base accounting procedure for acid sulfate soils Part 1: Introduction and definitions, symbols and acronyms, sampling and sample preparation Qualite de I'eau - Méthode de comptage acide-base pour les sols sulfatés acides - Partie 1: Introduction et definitions, symboles et acronymes, échantillonnage et préparation des échantillons Reference number IS0 14388-1:2014(E) LSO @ IS0 2014 It licensefromIHS Not for Resale IS0 14388-1:2014(E) COPYRIGHTPROTECTEDDOCUMENT ISO2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 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 + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved No reproductic networking permitted without license from IHS Not for Resale IS0 14388-1:2014(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references ..1 3 Terms and definitions 4 Abbreviated terms ..8 5 Principle. .8 6 Apparatus ..8 7 Sampling and sample pre-treatment in the field .9 8 Sample pre-treatment in the laboratory .10 8.1 General .10 8.2 Drying. .10 8.3 Removal of > 2 mm size material. .11 8.4 Final grinding of the laboratory sample .11 8.5 Storage and archiving of samples 12 9 Calculation of extraneous material ..12 10 Pre-treatment report .12 11 Calculation of the acid-producing potential of acid sulfate soil using an acid-base accounting method .13 11.1 General ..13 11.2 Procedure .13 11.3 Calculation ..14 Annex A (normative) Chromium suite and SPOCAS suite acid-base accounting ..16 Bibliography .18 iii se with IS lout license from IHS Not for Resale