ASTM E1858-2008 用差示扫描量热法测定烃类氧化感应时间的标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminingOxidationInductionTimeofHydrocarbonsbyDifferentialScanningCalorimetry
【原文标准名称】:用差示扫描量热法测定烃类氧化感应时间的标准试验方法
【标准号】:ASTME1858-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E37.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:differentialscanningcalorimetry;hydrocarbons;isothermaltemperature;oxidation;oxidationinductiontime;oxidativestability;pressuredifferentialscanningcalorimetry;Differentialscanningcalorimetry(DSC);Hydrocarbons;Isothermalconditions/tes
【摘要】:Oxidativeinductiontimeisarelativemeasureofthedegreeofoxidativestabilityofthematerialevaluatedattheisothermaltemperatureofthetest.Thepresence,quantityoreffectivenessofantioxidantsmaybedeterminedbythismethod.TheOITvaluesthusobtainedmaybecomparedfromonehydrocarbontoanotherortoareferencematerialtoobtainrelativeoxidativestabilityinformation.Typicalusesincludetheoxidativestabilityofedibleoilsandfats(oxidativerancidity),lubricants,greases,andpolyolefins.1.1Thistestmethoddescribesthedeterminationoftheoxidativepropertiesofhydrocarbonsbydifferentialscanningcalorimetryorpressuredifferentialscanningcalorimetryandisapplicabletohydrocarbonsthatoxidizeexothermicallyintheiranalyzedform.1.2TestMethodA8212;Adifferentialscanningcalorimeter(DSC)isusedatambientpressure,forexample,about100kPaofoxygen.1.3TestMethodB8212;ApressureDSC(PDSC)isusedathighpressure,forexample,3.5MPa(500psig)oxygen.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5ThistestmethodisrelatedtoISO11357x2013;6butisdifferentintechnicalcontent.ThistestmethodisrelatedtoCECL-85x2013;Tbutincludesadditionalexperimentalconditions.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninNote5andNote13.
【中国标准分类号】:G16
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】:英语