ISO INTERNATIONAL STANDARD 14592-2 First edition 2002-11-15 Corrected version 2003-08-01 Water quality - Evaluation of the aerobic biodegradability of organic compounds at low concentrations - Part 2: Continuous flow river model with attached biomass Qualité de I'eau-- Evaluation de la biodegradabilite aérobie des composés organiques presents en faibles concentrations - Partie 2: Modele de cours d'eau a courant continu avec biomasse associee Reference number ISO14592-2:2002(E) @ ISO 2002 Copyright Intemational Organization for Standardization ed without license from IHS Not for Resale ISO 14592-2:2002(E) PDFdisclaimer 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 infom 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, 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.+ 4122 749 01 11 Fax+41227490947 E-mail [email protected] Web www.iso.org Printed in Switzerland ii @ IsO 2002 - Allrights reserved Copyright International Organization for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO 14592-2:2002(E) Contents Page Foreword. Introduction. 1 Scope. 2 Normative reference.. 3 Terms, definitions and symbols 4 Principle....... 5 Reagents and media. 6 Apparatus. 7 Test environment ... 8 Procedure... 9 Calculation. 9 10 Validity of the test .. 11 Test repor.... 12 Annex A (informative) Example of expression of resuits 13 Bibliography. @IsO 2002-All rights reserved ili Copyright International Organization for Standardization Not for Resale ISO 14592-2:2002(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. Each member body interested in a subject for which a technical committee has been established has Commission (IEC)onallmattersofelectrotechnical standardization. International Standards are drafted in accordance with the rules given in the IsO/lEc Directives, Part 3. The main task of technical committees is to prepare International Standards. 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 14592 may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. methods. 1so 14592 consists of the following parts, under the general title Water quality -- Evaluation of the aerobic biodegradability of organic compounds at low concentrations: Part 1: Shake-flask batch test with surfacewater or surface water/sediment suspensions Part 2: Continuous flow river model with attached biomass This