【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),【英文标准名称】:Aerospace;elastomers,sheets,sectionsandmouldedparts;classificationofdefects
【原文标准名称】:航空和航天.弹性体、薄板、型材和模制件.误差等级
【标准号】:DIN9247-1983
【标准状态】:作废
【国别】:德国
【发布日期】:1983-03
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:航天运输;外形;缺陷;弹性体;半成品;硫化橡胶;分类系统;航空运输;分类;航空航天运输
【英文主题词】:defects;elastomers;aerospacetransport;semi-finishedproducts;vulcanizedrubber;profile;spacetransport;classificationsystems;classification;airtransport
【摘要】:
【中国标准分类号】:V13
【国际标准分类号】:49_025_40
【页数】:8P;A4
【正文语种】:德语