ASTM D7184-2007 用氧化燃烧和减压化学发光法测定芳烃中超低氮的标准试验方法

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【英文标准名称】:StandardTestMethodforUltraLowNitrogeninAromaticHydrocarbonsbyOxidativeCombustionandReducedPressureChemiluminescence
【原文标准名称】:用氧化燃烧和减压化学发光法测定芳烃中超低氮的标准试验方法
【标准号】:ASTMD7184-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D16.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:芳烃;化学发光;燃烧;烃类;氮;氧化燃烧;压力;测试
【英文主题词】:chemiluminescence;nitrogen;reducedpressure
【摘要】:Thistestmethodisusefultodetectandquantifynitrogen-containingcompoundsataconcentrationof0.03to1mgN/kginlightaromatichydrocarbonsusedorproducedinmanufacturingprocess.Thesenitrogen-containingcompoundsareundesirableinfinishedaromaticproductsandmaybeusedinsettingspecificationfordeterminingthetotalnitrogencontentinaromatichydrocarbons.Thistestmethodrequirestheuseofreducedpressureatthedetector.Lossofvacuumorpressurefluctuationsimpactthesensitivityofthedetectorandtheabilitytodeterminenitrogenconcentrationslessthan1mgN/kg.1.1Thistestmethodcoversthedeterminationoftotalnitrogeninaromatichydrocarbons,suchasbenzene,toluene,andxylene.1.2Thistestmethodisapplicableforsamplescontainingnitrogenfrom0.03to1mgN/kg.ForhighernitrogenconcentrationsrefertoTestMethodD6069orD4629.1.3Indeterminingtheconformanceofthetestresultsusingthismethodtoapplicablespecifications;resultsshallberoundedoffinaccordancewiththerounding-offmethodofPracticeE29.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifanyassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection9.
【中国标准分类号】:G17
【国际标准分类号】:71_080_15
【页数】:4P.;A4
【正文语种】: