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【英文标准名称】:StandardTestMethodforSizingandCountingParticlesinLightandMiddleDistillateFuels,byAutomaticParticleCounter
【原文标准名称】:使用自动粒子计数器确定轻质和中间馏分燃料的粒度尺寸和颗粒数量的标准试验方法
【标准号】:ASTMD7619-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:automaticparticlecounting;automotivediesel;biodiesel;fuelcleanliness;gasoil;gasoline;kerosine;marinediesel;Lightdistillates;Middledistillatefuels;Automaticparticlecounters;Distillatefuels
【摘要】:Thistestmethodisintendedforuseinthelaboratoryorinthefieldforevaluatingthecleanlinessofdistillatefuels,andliquidbiofuels.Itisnotapplicabletoonorin-lineapplications.Thistestmethodoffersadvantageovertraditionalfiltrationmethodsinthatitisapreciserapidtest,andadvantageovervisualmethodsasitisnotsubjective.Anincreaseinparticlecountscanindicateachangeinthefuelconditioncausedbystorageortransferforexample.Highlevelsofparticlescancausefilterblockagesandhaveaseriousimpactonthelifeofpumps,injectors,pistonsandothermovingparts.Knowledgeofparticlesizeinrelationtothemetallurgycanprovidevitalinformationespeciallyifthehardnessofparticlesisalsoknownfromothersources.Thistestmethodspecifiesaminimumrequirementforreportingmeasurementsinparticlesizebands(seeA1.1.2).Somespecificapplicationsmayrequiremeasurementsinotherparticlesizebands.Obtainingarepresentativesampleandfollowingtherecommendedsampleandtestspecimenpreparationproceduresandtimescalesisparticularlyimportantwithparticlecountingmethods.(SeeSections8,10,14.1.4andNote10.)1.1Thistestmethodusesaspecificautomaticparticlecounter(APC)tocountandmeasurethesizeofdisperseddirtparticles,waterdropletsandotherparticles,inlightandmiddledistillatefuel,andbiofuelssuchasbiodieselandbiodieselblends,intheoverallrangefrom4x00B5;m(c)to100x00B5;m(c)andinthesizebandsx2265;4x00B5;m(c),x2265;6x00B5;m(c),andx2265;14x00B5;m(c).Note18212;ASTMspecificationfuelsfallingwithinthescopeofthistestmethodincludeSpecifications:D975grades1Dand2D,D3699,D4814(see14.1.1.1),D6751,D6985,D7467anddistillategradesofD396andD2880.Note28212;Forthepurposesofthistestmethod,waterdropletsarecountedasparticles,andagglomeratedparticlesaredetectedandcountedasasinglelargerparticle.Dirtincludesbiologicalparticles.Althoughtheprojectedareaofaparticleismeasured,thisisexpressedasthediameterofasphereforthepurposesofthistestmethod.Note38212;Thenotation(c),usedwithparticlesizes,isusedtodenotethattheapparatushasbeencalibratedinaccordancewithISO11171.Strictlythisonlyappliestoparticlesupto50x00B5;m.Note48212;Thistestmethodmaybeusedforparticlesizesbandsupto100x00B5;m(c),howevertheprecisionhasonlybeendeterminedforthesizebandsx2265;4x00B5;m(c),