ISO INTERNATIONAL STANDARD 10628-2 First edition 2012-12-01 Diagrams for the chemical and petrochemical industry - Part 2: Graphical symbols Schéemas de procéde pour I'industrie chimique et pétrochimique - Partie 2: Symboles graphiques Reference number ISO 10628-2:2012(E) ISO @ISO2012 No reproduction or networking permitted without license from IHS Not for Resale ISO 10628-2:2012(E) COPYRiGHTPROTECTEDDOCUMENT ISO 2012 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. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland Iso2012-All rights reserved No reproduction or networking permtted without license from IHS Not for Resale ISO 10628-2:2012(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 non-governmental,inliaisonwithlsO,alsotakepartinthework.IsOcollaboratescloselywiththeInternational 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. 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 document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 10628-2 was prepared by Technical CommitteeISO/TC 10, Technical product documentation, Subcommittee SC 10, Process plant documentation. Is0 10628:1997, which has been technically revised. IsO 10628 consists of the following parts, under the general title Diagrams for the chemical and petrochemical industry: Part 2: Graphical symbols The following part is under preparation: Part 1: Specificationofdiagrams ili Not for Resale