ISO INTERNATIONAL 4783-2 STANDARD Second edition. June1997 (1989-04-15) Industrial wire screens and woven wire cloth - Guide to the choice of aperture size and wire diametercombinations Part 2 : Preferred combinations for woven wire cloth Tamis et tissus metalliques industriels -Guide pourle choix des combinaisons d'ouverture demaille t de diametre dufil Partie 2:Combinaisons preferentielles pour tissus non preformes 4.29 Bearbeitet: Reference number ISO 4783-2 : 1989 (E) ISO 4783-2 : 1989 (E) Foreword 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 the right to be represented on that committee. International organizations, govern- mentai and non-governmental, in liaison with ISO, also take part in the work. Is collaborates closely with the international Electrotechnical Cormmission (lEC) on atl matters of electrotechnical standardization. the member bodies for approval before their acceptance as International Standards by the Iso Council. They are approved in accordance with isO procedures requiring at least 75 % approvai by the member bodies voting. International Standard ISO 4783-2 was prepared by Technicat Committee ISO/TC 24, Sieves, sieving and other sizing methods. This second edition cancels and replaces the first edition (ISO 4783-2 : 1981), of which it constitutes a minor revision. Iso 4783 consists of the following parts, under the general title industrial wire screens and woven wire cloth -Guide to the choice of aperture size and wire diameter combi. nations : Part 1: Generalities Part2:Preferredcombinationsforwovenwirecloth screens ISO1989 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanicat, including photocopying and microfilm, without peimission in writing from the publisher. Internationat Organization for Standardization Case postale 56 , CH-1211 Geneve 20 Switzerland Printed in Switzerland INTERNATIONALSTANDARD ISO4783-2:1989 (E) Industrial wire screens and woven wire cloth - Guide to the choice of aperture size and wire diameter combinations Part 2 : Preferred combinations for woven wire cloth Scope 1 Normative references 2 The following standards contain provisions which, through This part of iSO 4783 tabulates preferred combinations of aper- ture size and wire diameter for industrial woven wire cloth rference in this text, constitute provisions of this part of ISo 4783. At the time of publication, the editions indicated which are taken from the general list of aperture/wire combi- were valid. Ail standards are subject to revision, and parties to nations given in ISO 4783-1. agreements based on this part of ISO 4783 are encouraged to investigate the possibility of applying the most recent editions It applies to woven wire cloth of aperture size from 16 mm to of the standards listed below. Members of IEC and ISO main- 0.02 mm. tain registers of currently valid International Standards. ISO3:1973,Preferrednumbers-Series ofpreferrednumbers. NOTE - This is the first tnternational Standard on woven wire cloth for industrial purposes; these specifications are a compromise which IS0 497 : 1973, Guide to the choice of series of preferred takes account of existing national standards. Iso Mermber Bodies are numbers and of series containing more rounded values of earnestly requested to rationalize further in order to reduce the number preferred numbers. of wire diameters per aperture width within the next five years without excluding the option of increasing the nurnber of preferred apertures. IS0 2194 : 1972,Wire screens and plate screens for industrial purposes -Nominal sizes of apertures. iS0 4783-3 gives the preferred combinations for pre-crimped or Iso 4782 :1987, Metal wire for industriaf wire screens and pressure-welded wire screens. w