Designation:D4417−21StandardTestMethodsforFieldMeasurementofSurfaceProfileofBlastCleanedSteel1ThisstandardisissuedunderthefixeddesignationD4417;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thesetestmethodscoverthedescriptionoftechniquesformeasuringtheprofileofabrasiveblastcleanedsurfacesinthefield,shop,andlaboratory.Thereareothertechniquessuitableforlaboratoryusenotcoveredbythesetestmethods.1.2MethodBmayalsobeappropriatetothemeasurementofprofileproducedbyusingpowertools.NOTE1—TheMethodBprocedureinthisstandardwasdevelopedforuseonflatsurfaces.Dependingontheradiusofthesurface,theresultscouldhavegreatervariabilitywithlowervaluesandaverages.1.3SSPCstandardSSPC-PA17providesadditionalguid-ancefordeterminingconformancewithsurfaceprofilerequire-ments.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D7127TestMethodforMeasurementofSurfaceRoughnessofAbrasiveBlastCleanedMetalSurfacesUsingaPor-tableStylusInstrumentE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod2.2SSP...
