BS ISO BRITISH STANDARD 22856:2008 Equipment for crop protection Methods for the laboratory measurement of spray drift Wind tunnels ICS 65.060.40 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSISO22856:2008 National foreword This British Standard is the UK implementation of ISO22856:2008. The UK participation in its preparation was entrusted to Technical Committee AGE/15, Equipment for crop protection and application of liquid fertilizer. 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 from legal obligations. This British Standard Amendments/corrigendaissuedsincepublication was published under the authority ofthe Standards Policy and Strategy Date Comments Committee on 28 February 2009 BSI 2009 ISBN9780 58055605 0 BS ISO 22856:2008 ISO INTERNATIONAL 22856 STANDARD First edition 2008-11-15 Equipment for crop protection - Methods for the laboratory measurement of spray drift Wind tunnels Materieldeprotection des cultures-Methodesdemesurage en laboratoiredeladerivedujetSouffleries Reference number ISO22856:2008(E) O @ISO 2008 BS ISO 22856:2008 ISO22856:2008(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 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 infom 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 form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either so at the address below or ISO copyright office Case postale56: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 2008All rights reserved BS ISO 22856:2008 ISO22856:2008(E) Contents Page Foreword iv 1 Scope 2 Normativereferences 3 Terms and definitions.. Principles.. 5 Test methods.. 6 Test report. 7 Calculationofresults. 5 AnnexA(normative)Characterisationofthewindtunnelairflow. AnnexB(normative)Selection and handling of spray drift samplersandcollectors. .9 Annex C (informative)Typical design and layout of wind tunnel . 11 AnnexD(normative)Requiredcontentofthetestreport. 12 AnnexE(informative)Example of calculation ofresults.. Bibliography ..... 14 @ISO 2008-Allrights reserved ili BSISO22856:2008 ISO22856:2008(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 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 International Standard requires approval by at least 75 % of the member bodies casting a vote. rights. IsO shall not be held responsible for identifying any or all such patent rights. forestry,SubcommitteeSC6,Equipmentforcropprotection iv ISO 2008-All rights reserved BS ISO 22856:2008 INTERNATIONAL STANDARD ISO22856:2008(E) Equipment for crop protection Methods for the laboratory measurement of spray drift Wind tunnels Scope 7 This International Standard establishes general principles for the measurement of spray drift potential in wind tunnels under controlled laboratory conditions. This International Standard