ISO INTERNATIONAL STANDARD 12781-2 First edition 2011-04-01 Geometrical product specifications (GPS) Flatness Part 2: Specification operators Spécification géomeétrique des produits (GPS) Planéité Partie 2: Opérateurs de spécification Reference number ISO 12781-2:2011(E) @ISO 2011 py IHS under lic Not for Resale ISO 12781-2:2011(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, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or IsO's memberbody 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 copyright@iso.org Web www.iso.org Published in Switzerland @ IsO 2011 - All rights reserved py IHS unde ermitted without license from IHS Not for Resale ISO 12781-2:2011(E) Contents Page Foreword IV Introductior 1 Scope 2 Normative references. 3 Terms and definitions 4 Complete specification operator 4.1 General..... 4.2 Probing system 5 Compliance with the specification . Annex A (informative) Harmonic content of a nominally flat workpiece and extraction strategy.. 3 AnnexB(informative)Extraction strategies... Annex C (informative) Relationship to the GPS matrix model. Bibliography.. 3 Copyright International Organization for Standardizalon ghts reserved ili se from IHS Not for Resale