ISO INTERNATIONAL STANDARD 16610-61 First edition 2015-07-01 AMENDMENT1 2019-12 Geometrical product specification (GPS) Filtration - Part 61: Linear areal filters Gaussian filters AMENDMENT 1 Spécification géométrique des produits (GPS)-Filtrage - Partie 61:Filtres surfaciques lineaires :Filtres Gaussiens AMENDEMENT1 Referencenumber IS016610-61:2015/Amd.1:2019(E) ISO @IS0 2019 IS016610-61:2015/Amd.1:2019(E) COPYRIGHTPROTECTEDDOCUMENT IS02019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form 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 CP 40i : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122.749 01 11 Fax: +41 22 749 09 47 Email:[email protected] Website: www.iso.org Published in Switzerland ii IS02019-Allrightsreserved IS0 16610-61:2015/Amd.1:2019(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (iso member bodies).The work of preparing International Standards is normally carried out through Iso technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations,governmental and non-governmental, in liaison withIso,also takepart in thework. ISo collaborates closely with the International Electrotechnical Commission (IEC)on all matters of electrotechnical standardization The procedures used to develop this document and those intended for its further maintenance are described in the Iso/IEC Directives, Part 1. In particular, the different approval criteria neededfor the different types of Iso documents should be noted.This document was drafted in accordance with the editorial rules of the ISo/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to thepossibility that some of the elements of this document may be the subject of patent rights.IsO shall not be held responsible for identifying any or all such patent rights. Details of anypatent rights identifiedduringthedevelopment of the document will be in the Introduction and/or on the Iso list of patent declarations received (see www.iso.org/patents) Any trade name used in this document is information given for the convenience of users and does not constituteanendorsement. For an explanation of the voluntary nature of standards, the meaning of Iso specific terms and expressions related to conformity assessment,as well as information about Iso's adherenceto the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see Wwwiso.org/ iso/foreword.html. This document was prepared by Technical Committee ISo/TC 213, Dimensional and geometrical product specificationsand verification. This document develops a concept of handling end effects in the case of the linear areal Gaussian filter. A list of all parts in the ISO 16610 series can be found on the ISO website. Any feedback or questions on this document should bedirected totheuser'snational standards body.A complete listing of thesebodies can be found at www.iso.org/members.html @ IS0 2019- All rights reserved ii IS016610-61:2015/Amd.1:2019(E) Geometrical product specification (GPS) Filtration Part 61: Linear areal filters Gaussian filters AMENDMENT 1 AddanewClause7after6.2: 7 Treatment ofend effects 7.1 General Depending on the chosen nesting indices, the filtered surface may be significantly smaller than the unfiltered surface due to end effects (see Figure 8 for linear planar Gaussian filters and Figure 9 for linearcylindrical Gaussianfilters).Iftheend effectsrequiretreatmentthemomentretainmentcriterion with p =1