ISO INTERNATIONAL STANDARD 5456-3 First edition 1996-06-15 Technical drawings Projection methods - Part 3: Axonometric representations Dessins techniques -- Methodes de projection - Partie 3: Représentations axonometriques This material is reproduced from Iso documents under International Organization for Standardization (Iso) Copyright License number IHS/ICC/1996. Not for resale. No part of these iso documents may be reproduced in any form, electronic retrieval system or otherwise, except as allowed in the copyright law of the country of use, or with the prior written consent of 1so (Case postale 56, 1211 Geneva 20, Switzerland, Fax +41 22 734 10 79), IHs or the iso Licensor's members. ISO Reference number ISO 5456-3:1996(E) Copyright Intemational Organizationfor Standardization Provided by IHS und nse with ISC No reproduction or networking permited without license from IHS Not for Resale ISO 5456-3:1996(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 the right to be rep- resented on that committee. International organizations, governmental and non-governmental, in liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (lEC) on all matters of electrotechnical standardization. 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 avote. International Standard IsO5456-3was prepared by Technical Committee Iso/Tc 10, Technical drawings, product definition and related documen- tation, Subcommittee Sc 1, Basic conventions. IsO 5456 consists of the following parts, under the general title Technical drawings - Projection methods: Part 1:Synopsis Part 2: Orthographic representations Part 3: Axonometric representations Part 4: Central projection Annex A of this part of ISO 5456 is for information only. ISO1996 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in anyform or by any means,electronic ormechanical,includingphotocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 · CH-1211 Geneve 20 : Switzerland Printed in Switzerland ii Not for Resale @ ISO 1S05456-3:1996(E) Introduction Axonometric representations are simple pictorial representations obtained by projecting the object to be represented from an infinitely distant point (projection centre) on a single projection plane (normally the drawing sur- face). This kind of parallel projection gives an adequate approximation for distant views. the relative positions of the projection centre, the projection plane and the object itself. Among the infinite possibilities of axonometric representation, only a few activities (mechanical, electrical, construction, etc.). Axonometric representations are not as commonly used in technical drawings as are orthographic representations. ii No reproduction or networking permtted without license from IHS Not fr Resale