ISO INTERNATIONAL STANDARD 12180-1 First edition 2011-04-01 Geometrical product specifications (GPS) Cylindricity Part 1: Vocabulary and parameters of cylindrical form Spécification géomeétrique des produits (GPS) Cylindricité - Partie 1: Vocabulaire et parametres de cylindricite Reference number ISO 12180-1:2011(E) @ ISO 2011 HS under ted without license from IHS Not for Resale ISO 12180-1:2011(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. + 4122749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2011 - All rights reserved y IHS unde nited without license from IHS Not for Resale ISO 12180-1:2011(E) Contents Page Foreword IV Introductior 1 Scope 2 Normative references 3 Terms and definitions 3.1 General terms 3.2 Termsrelatingtothesurface 3.3 Terms relating to the reference cylinder..... 3.4 Terms relating to the circumference and the generatrix. 3.5 Terms relating to parameters.... 4 Radial cross-section deviations . 5 Straightness deviations.. .8 Annex A (informative) Mathematical definition of cylindricity tolerances of nominal integral features..... 9 Annex B (informative) Consideration in the assessment of deviations from cylindrical form... .10 Annex C (informative) Synoptic tables of terms, abbreviated terms and parameters. .12 AnnexD(informative)RelationshiptotheGPSmatrixmodel 14 Bibliography 6 CopyrghtInternational OrganizaionStandardizaonghtsreserved ili nse from IHS Not for Resale

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