ISO INTERNATIONAL STANDARD 9912-2 Second edition 2013-11-01 Agricultural irrigation equipment - Filters for microirrigation - Part 2: Strainer-type filters and disc filters Matériel agricole d'irrigation - Filtres - Partie 2: Filtres a tamis Reference number IS0 9912-2:2013(E) ISO @IS02013 mitted without license from IHS Not for Resale IS0 9912-2:2013(E) COPYRIGHTPROTECTEDDOCUMENT @IS02013 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 [email protected] Web www.iso.org Published in Switzerland @ IS0 2013 - All rights reserved or networking permited without license from IHS Not for Resale IS0 9912-2:2013(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Marking 3 4.1 General .3 5 Design and construction requirements .4 5.1 General ..4 5.2 Filter housing .4 5.3 Connections ..4 6 Mechanical and hydraulic tests .5 6.1 General. .5 6.2 Resistance of the filter to internal hydrostatic pressure. ..5 6.3 Filter element tightness and resistance to buckling or tearing. 7 6.4 Clean pressure drop ..8 7 Information to be supplied by the manufacturer ..8 Bibliography .10 Copyritnteatinal rganizason t? Sadizah rights reserved ii se with ISt without license from IHS Not for Resale

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