Designation:D2809−21StandardTestMethodforCavitationCorrosionandErosion-CorrosionCharacteristicsofAluminumPumpsWithEngineCoolants1ThisstandardisissuedunderthefixeddesignationD2809;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverstheevaluationofthecavitationcorrosionanderosion-corrosioncharacteristicsofaluminumautomotivewaterpumpswithcoolants.NOTE1—Duringthedevelopmentofthistestmethod,itwasfoundthatresultsobtainedwhentestingtwo-phasecoolantsdidnotcorrelatewithresultsfromfieldtests.Therefore,thetestmethodcannotberecommendedasbeingasignificanttestfordeterminingcavitationeffectsoftwo-phasecoolants.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Specificwarningstatementsaregivenin5.2.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1176PracticeforSamplingandPreparingAqueousSolu-tionsofEngineCoolantsorAntirustsforTestingPurposesE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod2.2ASTMAdjunct:3Pumpteststand(7drawingsandBillofMaterials)3.SummaryofTestMethod3.1Thistestmethodconsistsofpumpinganaqueouscoolantsolutionat113°C(...
