Designation:D4636−14StandardTestMethodforCorrosivenessandOxidationStabilityofHydraulicOils,AircraftTurbineEngineLubricants,andOtherHighlyRefinedOils1ThisstandardisissuedunderthefixeddesignationD4636;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.INTRODUCTIONThistestmethodistheresultofcombiningFederalTestMethods5307.2and5308.7.Featuresanddetailsofbothofthesetestmethodsareincluded,butthenewtestmethodisbasicallyMethod5307.2expandedtoincludeMethod5308.7.21.Scope*1.1Thistestmethodcoversthetestingofhydraulicoils,aircraftturbineenginelubricants,andotherhighlyrefinedoilstodeterminetheirresistancetooxidationandcorrosiondegra-dationandtheirtendencytocorrodevariousmetals.Petroleumandsyntheticfluidsmaybeevaluatedusingmoistordryairwithorwithoutmetaltestspecimens.1.2Thistestmethodconsistsofastandardtestprocedure,analternativeProcedure1,andanalternativeProcedure2.Astherearevariationspossiblewiththistestmethod,itwillbeuptotheparticularspecificationtoestablishtheconditionsrequired.Inadditiontotemperature,thevariablestospecifyifotherthanthoseofthestandardprocedureoralternativeProcedure1or2are:testtime,airflowandhumidity,samplefrequency,testfluidquantity,andmetalspecimen(s).1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3.1Exception—Thevaluesinparenthesesinsomeofthefiguresareprovidedforinformationonlyforthoseusingoldequipmentbasedonnon-SIunits.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:3D91TestMethodforPrecipitat...
