【英文标准名称】:StandardTestMethodforSpontaneousHeatingValuesofLiquidsandSolids(DifferentialMackeyTest)
【原文标准名称】:液体和固体的自然热值标准试验方法(差示麦克法)
【标准号】:ASTMD3523-1992(2007)
【标准状态】:现行
【国别】:
【发布日期】:1992
【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】:D02.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:石油产品;固体;热值;液体;试验
【英文主题词】:DifferentialMackeyTest;liquids;solids;spontaneousheating;spontaneousheatingvalues
【摘要】:Thespontaneousheatingvalueofasubstanceisameasureoftheabilityofthatsubstancetoundergoself-heatingreactionswhilesupportedbycellulosicorotherfibrousmaterialinair.Itisanindexoftheautoignitiontendencyofthesubstanceundersuchconditions.1.1Thistestmethodcoversthenon-adiabaticdeterminationofthespontaneousheatingvalues(SHV)ofliquidsandsolids.Itisapplicabletosubstancesthatarenotcompletelyvolatileatthetesttemperature.Spontaneousheatingvaluesobtainedbythistestmethodarequalitativeindicationsofthedegreeofself-heatingthatmaybeexpectedtooccuruponexposureofthesampletoairatthetesttemperature.1.2Valuesobtainedbythismethodareapplicabletoliquidsandsolidssupportedoncellulosicsurfaces.Theyarenotapplicabletoliquidsonmetalsurfaces,oncontaminatedsurfaces,oratpressuresaboveatmospheric.1.3Spontaneousheatingvaluesdeterminedbythepresenttestmethodareregardedonlyasqualitativemeasurementsofself-heatingwhichoccursundertheconditionsofthetest.Thetestmethoddoesnotpurporttoproduceaquantitativemeasureoftheenthalpyofreactionofthesamplewithairatagiventesttemperature.Suchdatacanbeobtainedbytheuseofanadiabaticcalorimeter.Theexistence,underthetestconditions,ofapositivetemperaturedifferencebetweenthesampleandthereferenceisevidenceofathermochemicalreactioninthesample.1.4Themagnitudeofthemeasuredtemperaturedifferenceisasemiquantitativeindicationoftheenthalpyandrateofthatreaction.Sincefactorssuchasheatlossfromthesampletothebathandquenchingofthereactionduetotoorapidconsumptionofoxygenaffecttheamountanddurationofthemeasuredheateffect,caremustbetakennottoattributetoomuchquantitativesignificancetothetestresults.Itissufficient,forthepurposeofthistest,todeterminewhetherornotthesampleiscapableofundergoingaself-heatingreactionofsufficientmagnitudeandrapiditytoproduceadetectablethermaleffect.Thespontaneousheatingvalue(SHV)canbelowerthanthetesttemperature.Anegativeresultdoesnotprecludespontaneousheatinginitiatingatatemperaturehigherthanthetesttemperature.1.5Thisstandardshouldbeusedtomeasureanddescribetheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditionsandshouldnotbeusedtodescribeorappraisethefire-hazardorfire-riskofmaterials,products,orassembliesunderactualfireconditions.However,resultsofthistestmaybeusedaselementsofafire-hazardassessmentorafire-riskassessmentwhichtakesintoaccountallofthefactorswhicharepertinenttoanassessmentofthefirehazardorfireriskofaparticularenduse.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Incaseswherematerials,productsorequipmentareavailableininch-poundunitsonly,SIunitsareomitted.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A54
【国际标准分类号】:75_160_01
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:StandardTestMethodsforChemicalAnalysisofHigh-Temperature,Electrical,Magnetic,andOtherSimilarIron,Nickel,andCobaltAlloys
【原文标准名称】:高温钢、电工钢、磁钢和其它类似的铁、镍和钴合金化学分析的标准试验方法
【标准号】:ASTME354-1993(2006)
【标准状态】:现行
【国别】:
【发布日期】:1993
【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】:E01.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;金属;合金;分析;铁;化学分析和试验;钴;镍
【英文主题词】:
【摘要】:Thesetestmethodsforthechemicalanalysisofmetalsandalloysareprimarilyintendedasrefereemethodstotestsuchmaterialsforcompliancewithcompositionalspecifications,particularlythoseunderthejurisdictionofASTMCommitteeonSteel,StainlessSteelandRelatedAlloys.Itisassumedthatallwhousethesetestmethodswillbetrainedanalystscapableofperformingcommonlaboratoryproceduresskillfullyandsafely.ItisexpectedthatworkwillbeperformedinaproperlyequippedlaboratoryunderappropriatequalitycontrolpracticessuchasthosedescribedinGuideE882.1.1Thesetestmethodscoverthechemicalanalysisofhigh-temperature,electrical,magnetic,andothersimilariron,nickel,andcobaltalloyshavingchemicalcompositionswithinthefollowinglimits:1.3MethodsforthedeterminationofseveralelementsnotincludedinthisstandardcanbefoundinTestMethodsE30andTestMethodsE1019.1.4Someoftheconcentrationrangesgiveninaretoobroadtobecoveredbyasinglemethodandthereforethisstandardcontainsmultiplemethodsforsomeelements.TheusermustselectthepropermethodbymatchingtheinformationgivenintheScopeandInterferencesectionsofeachmethodwiththecompositionofthealloytobeanalyzed.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Insomecases,exceptionsallowedinPracticeE380arealsoused.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSectionandinspecial"Warning"paragraphsthroughoutthesetestmethods.1.6Thismethodcoversthedeterminationofmanganeseinconcentrationsfrom0.05to2.00percent.1.7Thismethodcoversthedeterminationofphosphorusinconcentrationsfrom0.002to0.08%.
【中国标准分类号】:H11
【国际标准分类号】:77_140_40
【页数】:28P.;A4
【正文语种】: