ISO 25178-605 2025.docx

ISOInternationalStandardISO25178-605Secondedition2025-02Geometricalproductspecifications(GPS)Surfacetexture:ArealPart605:Designandcharacteristicsofnoncontact(pointautofocusprobe)instrumentsSpecificationgeometriquedesproduits(GPS)Etatdesurface:Surfacique一Partie605:ConceptionetCaracteristiquesdesinstrumentssanscontact(capteurautofocusapoint)ReferencenumberISO25178-605:2025(en)COPYRIGHTPROTECTEDDOCUMENT©ISO2025Allrightsreserved.Unlessotherwisespecified,orrequiredinthecontextofitsimplementation,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbeloworISO,smemberbodyinthecountryoftherequester.ISOcopyrightofficeCP401Ch.deBlandonnet8CH-1214Vernier,GenevaPhone:+41227490111Email:copyrightiso.orgWebsite:www.iso.orgPublishedinSwitzerlandContentsPageForewordivIntroductionv1 Scope12 Normativereferences13 Termsanddefinitions14 Instrumentrequirements35 Metrologicalcharacteristics46 Designfeatures47 Generalinformation4Annex A (informative)PrinciplesofPAPinstrumentsforarealsurfacetopographymeasurement5Annex B (informative)SourcesofmeasurementerrorforPAPinstruments9Annex C (informative)RelationshiptotheGPSmatrixmodel15Bibliography16ForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticular,thedifferentapprovalcriterianeededforthedifferenttypesofISOdocumentshouldbenoted.ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(seeWWW.iso.org/directives).ISOdrawsattentiontothepossibilitythattheimplementationofthisdocumentmayinvolvetheuseof（八）patent(三).ISOtakesnopositionconcerningtheevidence,validityorapplicabilityofanyclaimedpatentrightsinrespectthereof.Asofthedateofpublicationofthisdocument,ISOhadnotreceivednoticeof（八）patent(三)whichmayberequiredtoimplementthisdocument.HoweverlImplementersarecautionedthatthismaynotrepresentthelatestinformation,whichmaybeobtainedfromthepatentdatabaseavailableatWWW.iso.org/patents.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.Foranexplanationofthevoluntarynatureofstandards,themeaningofISOspecifictermsandexpressionsrelatedtoconformityassessment,aswellasinformationaboutISO'sadherencetotheWorldTradeOrganization(WTO)principlesintheTechnicalBarrierstoTrade(TBT),seeWWW.iso.org/iso/foreword.htmLThisdocumentwaspreparedbyTechnicalCommitteeISO/TC213,Dimensionalandgeometricalproductspecificationsandverification,incollaborationwiththeEuropeanCommitteeforStandardization(CEN)TechnicalCommitteeCEN/TC290,Dimensionalandgeometricalproductspecificationandverification,inaccordancewiththeAgreementontechnicalcooperationbetweenISOandCEN(ViennaAgreement).Thissecondeditioncancelsandreplacesthefirstedition(ISO25178-605:2014),whichhasbeentechnicallyrevised.Themainchangesareasfollows: removalofthetermsanddefinitionsnowspecifiedinISO25178-600; revisionofalltermsanddefinitionsforclarityandconsistencywithotherISOstandardsdocuments; additionofClaUSQ4forinstrumentrequirements,whichsummarizesnormativefeaturesandcharacteristics; additionofClaUSe5onmetrologicalcharacteristics; additionofClauseeondesignfeatures,whichclarifiesthetypesofinstrumentsrelevanttothisdocument; additionofaninformationflowconceptdiagraminClause4; revisionofAnneXAdescribingtheprinciplesofinstrumentsaddressedbythisdocument; additionofArmeXBonmetrologicalcharacteristicsandinfluencequantities;replacementofthenormativetableofinfluencequantitieswithaninformativedescriptionofcommonerrorsourcesandhowtheserelatethemetrologicalcharacteristicsinISO25178-600.AlistofallpartsintheISO25178seriescanbefoundontheISOwebsite.Anyfeedbackorquestionsonthisdocumentshouldbedirectedtotheuser'snationalstandardsbody.AcompletelistingofthesebodiescanbefoundatWWW.iso.org/membnrs.html.IntroductionThisdocumentisageometricalproductspecification(GPS)standardandistoberegardedasageneralGPSstandard(seeISO14638).ItinfluenceschainlinkFofthechainsofstandardsonprofileandarealsurfacetexture.TheISOGPSmatrixmodelgiveninIS014638givesanoverviewoftheISOGPSsystemofwhichthisdocumentisapart.Thefundamentalrulesof