ISO INTERNATIONAL STANDARD 8015 Second edition 2011-06-01 Geometrical product specifications (GPs) Fundamentals Concepts, principles and rules Spécification géométrique des produits (GPS)- Principes fondamentaux Concepts, principes et regles Reference number ISO 8015:2011(E) @ ISO 2011 py IHS under lic ted without license from IHS Not for Resale ISO 8015:2011(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, 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 @ ISO 2011 - All rights reserved vided by IHS under itted without license from IHS Not for Resale ISO 8015:2011(E) Contents Page Foreword .iv Introduction 1 Scope 2 Normative references... 3 Terms and definitions 4 Fundamental assumptions for the reading of specifications on drawings. 4.1 General 4.2 Functional limits .. 4.3 Tolerance limits .... 4.4 Workpiece functional level 5 Fundamentalprinciples. 5.1 Invocation principle... 5.2 PrincipleofGPSstandardhierarchy.. 5.3 Definitive drawing principle 5.4 Feature principle.. 5.5 Independency principle. 5.6 Decimal principle.. 5.7 Default principle . 5.8 Reference condition principle. 5.9 Rigid workpiece principle.... 5.10 Duality principle... 5.11 Functional control principle 5.12 General specification principle ... 5.13 Responsibility principle ... 6 Rules for indication of default specification operators. 6.1 General ...... 6.2 General ISO default GPS specification . 6.3 Altered default GPS specification.... 7 Rules for indication of special specification operators .. 7.1 7.2 Added complementary information (requirements) to the Iso basic specification ... 8 Rules for statements in parentheses .. .8 Annex A (informative) Relation to the GPS matrix model... 9 Bibliography 10 Copyright Interatinal organizainStandardizalionghtsreserved ii Not for Resale