ASTM D6468-2008 中间馏分燃料高温度稳定性的标准试验方法

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【英文标准名称】:StandardTestMethodforHighTemperatureStabilityofMiddleDistillateFuels
【原文标准名称】:中间馏分燃料高温度稳定性的标准试验方法
【标准号】:ASTMD6468-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D02.14
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:fuelinsolubles;hightemperaturestability;middledistillatefuels;storagestability;thermalstability;Distillatefuels;Fuelinsolubles;High-temperatureprocessing/testing;Middledistillatefuels;Storagestability--petroleumproducts;Thermalsta
【摘要】:Thistestmethodprovidesanindicationofthermaloxidativestabilityofdistillatefuelswhenheatedtohightemperaturesthatsimulatethosethatmayoccurinsometypesofrecirculatingengineorburnerfueldeliverysystems.Resultshavenotbeensubstantiallycorrelatedtoengineorburneroperation.Thetestmethodcanbeusefulforinvestigationofoperationalproblemsrelatedtofuelthermalstability.Whenthetestmethodisusedtomonitormanufactureorstorageoffuels,changesinfilterratingvaluescanindicatearelativechangeininherentstability.Storagestabilitypredictionsaremorereliablewhencorrelatedtolonger-termstoragetests,forexample,TestMethodD4625,orotherlowertemperature,long-termtests.Whenfuelsamplesarefreshlyproduced,agingfor180min,insteadofthetraditional90-mininterval,tendstogivearesultcorrelatingmoresatisfactorilywiththeabovemethods(seeAppendixX2).Thetestmethodusesafilterpaperwithanominalporosityof11x03BC;m,whichwillnotcaptureallofthesedimentformedduringagingbutallowsdifferentiationoverabroadrange.Reflectanceratingsarealsoaffectedbythecoloroffilterableinsolubles,whichmaynotcorrelatetothemassofthematerialfilteredfromtheagedfuelsample.Therefore,noquantitativerelationshipexistsbetweenthepadratingandthegravimetricmassoffilterableinsolubles.1.1Thistestmethodcoversrelativestabilityofmiddledistillatefuelsunderhightemperatureagingconditionswithlimitedairexposure.ThistestmethodissuitableforallNo.1andNo.2gradesinSpecificationsD396,D975,D2880,andD3699.Itisalsosuitableforsimilarfuelsmeetingotherspecifications.1.2Thistestmethodisnotsuitableforfuelswhoseflashpoint,asdeterminedbyTestMethodsD56,D93,orD3828,islessthan38x00B0;C.Thistestmethodisnotsuitableforfuelscontainingresidualoil.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3.1Exception8212;Themaximumvacuumincludesinch-poundunitsin6.5and11.2.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:27_060_10
【页数】:6P.;A4
【正文语种】:英语