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It defines scope and key principles for presenting distant views using parallel projection from an infinitely distant point. The standard specifies general presentation rules, including coordinate system orientation, object positioning, symmetry axes, treatment of hidden contours, and hatching conventions for cuts and section 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techniques—Méthodes de projection—StandlardS.iteh.alPartie 3:Representations axonométriques  \nISO 5456-3:1996  \nhttps:/standards.itehai/catabglstandards/sist/5a90988-f5f-4c3e-b4d9-  \n65c6a44d8df9/iso-5456-3-1996  \nIC  \n5456-3  \nFirst edition  \n1996-06-15  \n## Foreword\n\nISO (the International Organization for Standardization)is a worldwidefederation of national standards bodies (ISO member bodies).The work ofpreparing International Standards is normally carried out through ISOtechnical committees.Each member body interested in a subject for whicha technical committee has been established has the right to be rep-resented on that committee.International organizations,governmental andnon-governmental,in liaison with ISO,also take part in the work.ISOcollaborates closely with the International Electrotechnical Commission(IEC)on all matters of electrotechnical standardization.  \nDraft International Standards adopted by the technical committees arecirculated to the member bodies for voting.Publication as an InternationalStandard requires approval by at least 75%of the member bodies castinga vote.  \nVIEW  \n(standards.iteh.ai)  \nInternational Standard ISO 5456-3 was prepared by Technical CommitteeISO/TC 10,Technical drawings,product definition and relatedg documen-tation,Subcommittee SC1,Basic.gonventionsdardssist/5a909f88-ff5f-4c3e-b4d9-  \nISO 5456 consists of the following parts,under the general title Technicaldrawings —Projection methods:  \n一  Part 1:Synopsis  \n一  Part 2:Orthographic representations  \n一  Part 3:Axonometric representations  \n一  Part 4:Central projection  \nAnnex A of this part of ISO 5456 is for information only.  \nISO 1996  \nAll rights reserved.Unless otherwise specified,no part of this publication may be reproducedor utilized in any form or by any means,electronic or mechanical,including photocopying andmicrofilm,without permission in writing from the publisher.  \nInternational Organization for StandardizationCase postale 56·CH-1211 Geneve 20·SwitzerlandPrinted in Switzerland  \n## Introduction\n\nAxonometric representations are simple pictorial representations obtainedby 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 fordistant views.  \nThe resulting representation depends on the shape of the object and onthe relative positions of the projection centre,the projection plane and theobject itself.  \nAmong the infinite possibilities of axonometric representation,only a fewL atypes are recommended for technical drawings in all fields of technicaliTeh Slactivities (mechanical,electrical,construction,etc.).  \n(staonomenrcdfepieseharaois are not as commonly used in technicaldrawings as are orthographic representations.  \nISO 5456-3:1996  \nhttps:/standards.itehai/catabglstandards/sist/5a90988-ff5f-4c3e-b4d9-  \n65c6a44d8df9/iso-5456-3-1996  \niTeh This page intentionally left blankEVEW(standards.iteh.ai)  \nISO 5456-3:1996  \nhttps:/standards.itehai/catabog/standards/sist/5a90988-5f-4c3e-b4d9-  \n65c6a44d8df9/iso-5456-3-1996  \n# Technical drawings—Projection methods—\n\nPart 3:  \n## Axonometric representations\n\niTeh STANDARD PREVIEW  \n## 1 Scope\n\nISO 10209-2:1993,Technical product documentation(standards.itehvocabulary —Part 2.Terms relating to projectionThis part of ISO 5456 specifies basic rules for the methods.application of the recommended axonometric reB6-3:1996resentations tor all types ot technical drawings.https:/standards.tehai/catalog/standards/sist/5a90988-f5f-4c3e-b4d9-  \n65c6a44d8df9/iso-54563-1Definitions  \n## 2 Normative references\n\nFor the purposes of this part of ISO 5456,the defi-  \nnitions given in ISO 5456-1,ISO 10209-1 and  \nThe following standards contain provisions which,through reference in this text,constitute provisions ofthis p","cbCaikVg8DGjPI8D","https://ap.wps.com/l/cbCaikVg8DGjPI8D","pdf",1267088,"English","# Foreword\n# Introduction\n# Axonometric representations\n## 1 Scope\n## 2 Normative references\n## 4 General\n### 4.1 Position of the coordinate system\n### 4.2 Position of the object\n### 4.3 Axes of symmetry\n### 4.4 Hidden contours and edges\n### 4.5 Hatching","[{\"question\":\"What does ISO 5456-3:1996 cover?\",\"answer\":\"It specifies basic rules for applying the recommended axonometric representations to all types of technical drawings.\"},{\"question\":\"How is the coordinate system oriented in this standard?\",\"answer\":\"The coordinate axes are chosen so that one axis, the Z-axis, is vertical.\"},{\"question\":\"What guidance is given for hatching in cuts and sections?\",\"answer\":\"Hatching for a cut or section is preferably drawn at an angle of 45° to the axes and contours of the cut or section, and hatching for planes parallel to coordinate planes is drawn parallel to the projected coordinate axis.\"}]","Technical drawings—Projection methods - Part 3 - Axonometric representations | PDF",23]