Designation:D7236−07(Reapproved2013)StandardTestMethodforFlashPointbySmallScaleClosedCupTester(RampMethod)1,2ThisstandardisissuedunderthefixeddesignationD7236;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONThisflashpointtestmethodisadynamictestmethodanddependsonadefiniterateoftemperatureincreasetocontroltheprecisionofthetestmethod.Therateofheatingmaynotinallcasesgivetheprecisionquotedinthetestmethodbecauseofthelowthermalconductivityofcertainmaterials.TheuseofanequilibriummethodsuchasTestMethodsD3828,MethodBimprovesthepredictionofflammabilityforsuchmaterials,asthevaporsabovethetestspecimenandthetestspecimenareclosertothermalequilibrium.Flashpointvaluesareafunctionoftheapparatusdesign,theconditionoftheapparatusused,andtheoperationalprocedurecarriedout.Flashpointcanthereforeonlybedefinedintermsofastandardtestmethod,andnogeneralvalidcorrelationcanbeguaranteedbetweenresultsobtainedbydifferenttestmethodsorwithtestapparatusdifferentthanthatspecified.1.Scope1.1Thistestmethodcoversthedeterminationoftheflashpointofaviationturbinefuel,dieselfuel,kerosineandrelatedproductsinthetemperaturerangeof40to135°Cbyasmallscaleclosedcupapparatus.1.2Thistestmethodisonlyapplicabletohomogeneousmaterialsthatareliquidatornearambienttemperatureandattemperaturesrequiredtoperformthetest.1.3Thistestmethodisnotapplicabletoliquidscontami-natedbytracesofhighlyvolatilematerials.1.4Thistestmethodisadynamicmethodanddependsonadefiniterateoftemperatureincrease.Itisoneofmanyflashpointmethodsavailable,andeveryflashpointtestmethod,includingthisone,isanempiricalone.1.5Iftheuser’sspecificationrequiresadefinedflashpointmethod,neitherthistestnoranyothermethodshouldbesubstitutedfortheprescribedmethodwithoutobtainingcom-parativedataandanagreementfromthespecifier.1.6ThevaluesstatedinSIunitsa...
