【英文标准名称】:StandardTestMethodforEstimationofNetandGrossHeatofCombustionofBurnerandDieselFuels
【原文标准名称】:燃烧炉燃料和柴油机燃料燃烧的净热量和总热量估算的标准试验方法
【标准号】:ASTMD4868-2000(2005)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D02.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;热值;热值;矿物油;机动车燃料
【英文主题词】:burnerfuels;dieselfuels;grossheatofcombustion;heatenergy;heatofcombustion;heatingtests;netheatofcombustion
【摘要】:Thistestmethodisintendedforuseincaseswhereanexperimentaldeterminationofheatofcombustionisnotavailableandcannotbemadeconveniently,andwhereanestimateisconsideredsatisfactory.Itisnotintendedasasubstituteforexperimentalmeasurementofheatofcombustion.1.1ThistestmethodcoverstheestimationofthegrossandnetheatofcombustioninSIunits,megajoulesperkilogram,ofpetroleumfuelsfromthefueldensity,sulfur,water,andashcontent.Note18212;TheequationforestimationofnetandgrossheatofcombustionusedinthismethodwereoriginallypublishedbytheNISTPublicationNo.97.1.2Thistestmethodisespeciallyusefulforestimating,usingaminimumnumberoftests,theheatofcombustionofburneranddieselfuelsforwhichitisnotusuallycriticaltoobtainverypreciseheatdeterminations.Note2&38212;Moreaccurateestimationmethodsareavailableforaviationfuels(TestMethodsD1405andD3338,andD4529).However,thoseestimationmethodsrequireadditionalteststothoserequiredinthistestmethod.1.3Thistestmethodispurelyempirical(NOTE1).ItisapplicableonlytoliquidhydrocarbonfuelsderivedbynormalrefiningprocessesfromconventionalcrudeoilthatconformtotherequirementsofspecificationsforpetroleumfuelsasdescribedinNote3.Thistestmethodisvalidforthosefuelsinthedensityrangefrom750to1000kg/m3andthosethatdonotcontainanunusuallyhigharomaticcontent.Higharomaticcontentfuelswillnotnormallymeetfuelspecificationcriteria.Note38212;Theestimationoftheheatofcombustionofahydrocarbonfuelfromitsdensityandsulfur,water,andashcontentisjustifiableonlywhenthefuelbelongstowell-definedclassesforwhicharelationshipbetweenthesequantitieshavebeenderivedfromaccurateexperimentalmeasurementsonrepresentativesamplesoftheseclasses.Evenintheseclasses,thepossibilitythattheestimatemaybeinerrorbylargeamountsforindividualfuelsshouldberecognized.Thistestmethodhasbeentestedforalimitednumberoffuelsfromoilsandbitumenandshaleoiloriginandhasbeenfoundtobevalid.Theclassesoffuelsusedtoestablishthecorrelationpresentedinthistestmethodarerepresentedbythefollowingapplications:FuelSpecificationFuelOilsGrades1,2,4(light),4,5(light),5(heavy),and6D396DieselGrades1-D,2-D,and4-dD975AviationTurbineJetA,JetA-1,andJetBD1655GasTurbineGrades0-GT,1-GT,2-GT,3-GTand4-GTD2880KerosineGrades1-Kand2-KD3699

标准名称：	汽车转向节销技术条件
中标分类：	车辆 >> 汽车底盘与车身 >> 转向与操纵系统
替代情况：	JB 526-64
发布日期：
实施日期：	1992-07-01
首发日期：
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