astm-d1654-05

Designation:D1654–05StandardTestMethodforEvaluationofPaintedorCoatedSpecimensSubjectedtoCorrosiveEnvironments1ThisstandardisissuedunderthefixeddesignationD1654;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope1.1Thistestmethodcoversthetreatmentofpreviouslypaintedorcoatedspecimensforacceleratedandatmosphericexposuretestsandtheirsubsequentevaluationinrespecttocorrosion,blisteringassociatedwithcorrosion,lossofadhesionatascribemark,orotherfilmfailure.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityofwhoeverusesthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2B117PracticeforOperatingSaltSpray(Fog)ApparatusD610TestMethodforEvaluatingDegreeofRustingonPaintedSteelSurfacesD714TestMethodforEvaluatingDegreeofBlisteringofPaintsD822PracticeforFilteredOpen-FlameCarbon-ArcExpo-suresofPaintandRelatedCoatings3D870PracticeforTestingWaterResistanceofCoatingsUsingWaterImmersionD1014PracticeforConductingExteriorExposureTestsofPaintsandCoatingsonMetalSubstratesD1735PracticeforTestingWaterResistanceofCoatingsUsingWaterFogApparatusD2247PracticeforTestingWaterResistanceofCoatingsin100%RelativeHumidityD2803GuideforTestingFiliformCorrosionResistanceofOrganicCoatingsonMetalD4141PracticeforConductingBlackBoxandSolarCon-centratingExposuresofCoatingsD4585PracticeforTestingWaterResistanceofCoatingsUsingControlledCondensationD4587PracticeforFluorescentUV-CondensationExpo-suresofPaintandRelatedCoatingsD6695PracticeforXenon-ArcExposuresofPaintandRelatedCoatings3E3PracticeforPreparationofMetallographicSpecimensG85PracticeforModifiedSaltSpray(Fog)TestingG87PracticeforConductingMoistSO2Tests2.2ANSIStandard:B94.50Single-PointCuttingTools,BasicNomenclatureandDefinitionsfor43.SignificanceandUse3.1Thismethodprovidesameansofevaluatingandcom-paringbasiccorrosionperformanceofthesubstrate,pretreat-ment,orcoatingsystem,orcombinationthereof,afterexposuretocorrosiveenvironments.4.Apparatus4.1ScribingTools:4.1.1LatheToolType—Highspeedtoolsteelortungstencarbidethreadcuttinglathetoolbitwithacuttingtiphavinga60°includedangle.ANSIB94.50,StyleEhasbeenfoundtomeettheserequirements.(SeeFig.1.)Thetoolbitistypicallymountedinaholdersuchasawoodenfilehandletofacilitatethescribingoperation.4.1.2PencilType—Pencilshapeddevice,withahighspeedtoolsteelortungstencarbidescribingtip.Typicallythegrippingsurfaceisknurled.Thetipmaybereplaceableorpermanent.4.1.3OtherTypes—Othertypesofscribinginstrumentswhichuseaknifetypebladesuchasascalpel,razorblade,boxcutterknife,orothersharppointedtoolarenotacceptableunlessagreeduponbetweentheproducerandtheuser.1ThismethodisunderthejurisdictionofASTMCommitteeD01onPaintandRelatedCoatings,Materials,andApplicationsandisthedirectresponsibilityofSubcommitteeD01.25onEvaluationofWeatheringEffects.CurrenteditionapprovedMarch1,2005.PublishedApril2005.Originallyapprovedin1959.Lastpreviouseditionapprovedin2000asD1654–92(2000).2ForreferencedASTMstandards,visittheASTMwebsite,@astm.org.ForAnnualBookofASTMStandardsvolumeinformation,refertothestandard’sDocumentSummarypageontheASTMwebsite.3Withdrawn.4AvailablefromAmericanNationalStandardsInstitute,13thFloor,11W.42ndSt.,NewYork,NY10036.1Copyright©ASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,PA19428-2959,UnitedStates.4.2Straightedge—Anystraightedgeofsufficientlengthandrigiditytoguidethescribingtoolinastraightline.4.3AirSource—Asourceofcompressedaircapableofdeliveringatleast4.72L/s(10ft3/min)at552kPa(80psi).4.4AirGun—Anairdustinggunandnozzlecombination5tomeetthefollowingspecification:AirConsumption,m3/min(ft3/min)Pressure,kPa(psi)NozzleDiameter,mm(in.)0.24(8.4)550(80)3.0(0.12)4.4.1Aguardconsistingofbarriers,baffles,orscreensisrequiredtoprotecttheoperatorandotherindividualsneartheareawheretheairisbeingused.Theguardmustbeplacedbetweentheairnozzleandtheoperator.Adevicesuchasasand-blastingcabinethasbeenfoundtobeacceptable.NOTE1—TheuseofanairgunwithoutaguardisinviolationoftheU.S.OccupationalSafetyandHealthAdministrationregulation.4.5ScrapingTool—Arigidspatula,knife,orsimilarinstru-mentwithnosharpedgesorsharpcorners.4.6Scale—Anyrulewith1-mmdivisions.5.PreliminaryTreatmentofTestSpecimens5.1ScribedSpecimens:5.1.1Wherespecifiedoragreedupon,prepareeachspeci-menfortestingbyscribingitinsuchamannerthatthescribecanbeexposedlengthwisewhenpositionedinthetestcabinet.Thispositionwillallowsolutiondropletstorunlengthwisealongthescribe.5.1.2Scribethespecimenbyholdingthetoolatapproxi-matelya70to90°angletothesurfacewith