Designation:D2271–94(Reapproved1999)e1AnAmericanNationalStandardStandardTestMethodforPreliminaryExaminationofHydraulicFluids(WearTest)1ThisstandardisissuedunderthefixeddesignationD2271;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversaconstantvolumehigh-pressurevanepumptestprocedureforindicatingthewearpreventativecharacteristicsofpetroleumandnon-petroleumhydraulicfluids.1.2Thevaluesstatedineitheracceptablemetricunitsorinotherunitsshallberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother,withoutcombiningvaluesinanyway.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecifichazardstatements,see7.1.3,7.2.4,and8.1.10.2.ReferencedDocuments2.1ASTMStandards:D2882TestMethodforIndicatingtheWearCharacteristicsofPetroleumandNon-PetroleumHydraulicFluidsinaConstantVolumeVanePump23.SummaryofTestMethod3.1Ahydraulicfluidiscirculatedthrougharotaryvanepumpsystemfor1000hatapumpspeedof1200660r/minandapumpoutletpressureof6.9060.14MPa(1000620psig).Fluidtemperatureatthepumpinletis6663°C(15065°F)forallwaterglycols,emulsions,andotherwatercontain-ingfluidsandforpetroleumandsyntheticfluidswith40°C(104°F)viscositiesof46mm2/s(213SUS)orless.Atempera-tureof79°C(175°F)isusedforallothersyntheticandpetroleumfluids.Theresultobtainedisthetotalcamringandvaneweightlossesduringthetest.3.2FluidVolume—Thevolumeoffluidinthetestsystemshallnotbelimitedbutshallbeassmallaspracticalinorderthattheperiodrequiredforacompletefluid-cyclethroughthepump,equaltoT5V/P(1)where:T5recirculationtime,min,V5...
