ISO INTERNATIONAL STANDARD 16610-28 First edition 2016-12-15 Geometrical product specifications (GPS) Filtration - Part 28: Profile filters: End effects Specification geometrique des produits (GPS) - Filtrage - Partie 28: Filtres de profil: Effets de bords Reference number IS0 16610-28:2016(E) [so @IS02016 IS0 16610-28:2016(E) COPYRIGHT PROTECTED DOCUMENT IS0 2016,Published in Switzerland or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 · CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org IS0 16610-28:2016(E) Contents Page Foreword iv Introduction V 1 Scope. .1 2 Normative references .1 3 Terms and definitions 1 4 End effect correction methods. .2 4.1 General 2 4.2 Extrapolation of the profile -Methods 4 4.2.1 Zero padding . .4 4.2.2 Linear extrapolation 5 4.2.3 Symmetric extension 6 4.3 Moment retainment criterion .8 5 Recommendations .14 5.1 Default end correction 14 5.2 End correction designations 15 Annex A (normative) Filters according to Is0 16610 with automatic correction of end effects.. Annex B (informative) Relationship to the filtration matrix model .18 Annex C (informative) Relationship to the GPS matrix model .19 Bibliography .20 n @stsarai6 - All rights reserved iii