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ANSI/ASTM D4868-1990 评定石油燃料燃烧总热值和净热值的试验方法

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【英文标准名称】:EstimationofNetandGrossHeatofCombustionofPetroleumFuels,TestMethodfor(05.03)
【原文标准名称】:评定石油燃料燃烧总热值和净热值的试验方法
【标准号】:ANSI/ASTMD4868-1990
【标准状态】:作废
【国别】:美国
【发布日期】:1990
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:矿物油;机动车燃料;试验;热值
【英文主题词】:Automotivefuels;Calorificvalue;Calorificvalues;Mineraloils;Testing
【摘要】:ThistestmethodcoverstheestimationofthegrossandnetheatofcombustioninSIunits,megajoulesperkilogram,ofpetroleumfuelsfromthefueldensity,sulfur,water,andashcontent.Note1-TheequationforestimationofnetandgrossheatofcombustionusedinthismethodwereoriginallypublishedbytheNISTPublicationNo.97.Thistestmethodisespeciallyusefulforestimating,usingaminimumnumberoftests,theheatofcombustionofburneranddieselfuelsforwhichitisnotusuallycriticaltoobtainverypreciseheatdeterminations.Note2-Moreaccurateestimationmethodsareavailableforaviationfuels(TestMethodsD1405andD3338,andD4529).However,thoseestimationmethodsrequireadditionalteststothoserequiredinthistestmethod.Thistestmethodispurelyempirical(NOTE1).ItisapplicableonlytoliquidhydrocarbonfuelsderivedbynormalrefiningprocessesfromconventionalcrudeoilthatconformtotherequirementsofspecificationsforpetroleumfuelsasdescribedinNote3.Thistestmethodisvalidforthosefuelsinthedensityrangefrom750to1000kg/mandthosethatdonotcontainanunusuallyhigharomaticcontent.Higharomaticcontentfuelswillnotnormallymeetfuelspecificationcriteria.Note3-Theestimationoftheheatofcombustionofahydrocarbonfuelfromitsdensityandsulfur,water,andashcontentisjustifiableonlywhenthefuelbelongstowell-definedclassesforwhicharelationshipbetweenthesequantitieshavebeenderivedfromaccurateexperimentalmeasurementsonrepresentativesamplesoftheseclasses.Evenintheseclasses,thepossibilitythattheestimatemaybeinerrorbylargeamountsforindividualfuelsshouldberecognized.Thistestmethodhasbeentestedforalimitednumberoffuelsfromoilsandbitumenandshaleoiloriginandhasbeenfoundtobevalid.Theclassesoffuelsusedtoestablishthecorrelationpresentedinthistestmethodarerepresentedbythefollowingapplications:Thistestmethodisnotapplicabletopurehydrocarbons.Itisnotintendedasasubstituteforexperimentalmeasurementsofheatofcombustion(Note04).Note4-TheproceduresfortheexperimentaldeterminationofthegrossandnetheatsofcombustionaredescribedinTestMethodsD240andD4809.ThevaluesstatedinacceptableSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:
【正文语种】:英语


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【英文标准名称】:StandardSpecificationforSeamlessCold-DrawnCarbonSteelTubingforHydraulicSystemService
【原文标准名称】:液压系统设备用冷拉碳素无缝钢管的标准规范
【标准号】:ASTMA822/A822M-2004(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:A01.09
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:carbon;pressure-containingparts;seamlesssteeltube;steeltube;Carbonsteeltube--specifications;Cold-drawnsteeltube--specifications;Hydraulicsystems;Seamlesssteeltube--specifications
【摘要】:1.1Thisspecificationcoversnominalwallthickness,seamless,cold-drawncarbonsteeltubingintendedforuseinhydraulicsystemsandinothersimilarapplicationswhereformingoperationsrequiretightradiusbendingandflaring.1.2Tubingsizesandthicknessesusuallyfurnishedtothisspecificationare1/8to3x00BD;in.[3.2to88.9mm]inoutsidediameterand0.035to0.134in.[0.9to3.4mm]inclusive,innominalwallthickness.Tubinghavingotherdimensionsmaybefurnished,providedsuchtubingcomplieswithallotherrequirementsofthisspecification.1.3Mechanicalpropertyrequirementsdonotapplytotubingsmallerthan1/8in.[3.2mm]ininsidediameteror0.015in.[0.4mm]inthickness.1.4Optionalsupplementaryrequirementsareprovidedand,whendesired,shallbesostatedintheorder.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.
【中国标准分类号】:H48
【国际标准分类号】:23_100_40
【页数】:3P.;A4
【正文语种】:英语


基本信息
标准名称:功率速调管频率可重调性的测试方法
英文名称:Measurement of resettability of power klystrons
中标分类: 综合 >> 标准化管理与一般规定 >> 技术管理
发布日期:1981-01-23
实施日期:1981-07-01
首发日期:1900-01-01
作废日期:2010-01-20
出版日期:1900-01-01
页数:2页
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所属分类: 综合 标准化管理与一般规定 技术管理

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