ISO INTERNATIONAL STANDARD 25178-70 First edition 2014-02-15 Geometrical product specification (GPS) Surface texture: Areal - Part 70: Material measures Spécification géométrique des produits (GPS) - Etat de surface: surfacique- Partie 70: Mesures matérialisées Accessed by UNSW - LIBRARY on 15 Jun 2016 (Document currency not guaranteed when printed) Reference number IS0 25178-70:2014(E) ISO @IS02014 IS0 25178-70:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form writtenpermission.Permission canberequestedfromeitherIsOattheaddressbelow orIso'smemberbodyinthecountryof 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 i @ IS0 2014 - All rights reserved IS0 25178-70:2014(E) Contents Page Foreword ..iv Introduction. ..vi 1 Scope. 2 Normative references 3 Terms and definitions 4 General ...2 5 Requirements for the material measures ..2 6 Types of material measures 7 Profile material measures ..4 7.1 Type PPS: Periodic sinusoidal shape 7.2 Type PPT: Periodic triangular shape ..5 7.3 Type PPR: Periodic rectangular shape .6 7.4 Type PPA: Periodic arcuate shape .6 7.5 Type PGR: Groove, rectangular .7 7.6 Type PGC: Groove, circular. 7.7 Type PRO: Irregular profile .9 7.8 Type PCR: Circular irregular profile 10 7.9 Type PRI: Prism.. .11 7.10 Type PRB: Razor blade .11 7.11 Type PAS: Approximated sinusoidal shape ..12 7.12 Type PCS: Contour standard ..13 7.13 Type PDG: Double groove. ..14 Accessed by UNSW - LIBRARY on 15 Jun 2016 (Document currency not guaranteed when printed) 8 Areal material measures. ..15 8.1 Type AGP: Grooves, perpendicular .15 8.2 Type AGC: Grooves, circular. .15 8.3 Type ASP: Hemisphere 16 8.4 Type APS: Plane-sphere .17 8.5 Type ACG: Cross grating. .18 8.6 Type ACS: Cross sinusoidal. .19 8.7 Type ARS: Radial sinusoidal 19 8.8 Type ASG: Star-shape grooves. 20 8.9 Type AIR: Irregular. .21 8.10 Type AFL: Flat plane. .22 8.11 Type APC: Photochromic pattern .22 9 Material measure certificate. .23 Annex A (normative) Requirements for measurements. ..24 Annex B (informative) Equivalence table for material measure names ..25 Annex C (informative) Evaluation of a spacing measurand on an areal instrument ..26 Annex D (informative) Irregular measurement standards ..28 Annex E (informative) Relationship to the GPS matrix model .31 Bibliography .33 @ IS0 2014 - All rights reserved ii