ANSI/ASTM D5292-1999 高分辨率核磁共振光谱法测定芳烃油中碳和氢含量的方法(05.03)

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【英文标准名称】:AromaticHydrogenandAromaticCarbonContentsofHydrocarbonOilsbyHigh-ResolutionNuclearMagneticResonanceSpectroscopy,TestMethodfor(05.03)
【原文标准名称】:高分辨率核磁共振光谱法测定芳烃油中碳和氢含量的方法(05.03)
【标准号】:ANSI/ASTMD5292-1999
【标准状态】:作废
【国别】:美国
【发布日期】:1999
【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】:光谱学;含量测定;矿物油
【英文主题词】:Determinationofcontent;Mineraloils;Spectroscopy
【摘要】:Thistestmethodcoversthedeterminationofthearomatichydrogencontent(ProceduresAandB)andaromaticcarboncontent(ProcedureC)ofhydrocarbonoilsusinghigh-resolutionnuclearmagneticresonance(NMR)spectrometers.Applicablesamplesincludekerosenes,gasoils,mineraloils,lubricatingoils,coalliquids,andotherdistillatesthatarecompletelysolubleinchloroformatambienttemperature.ForpulseFouriertransform(FT)spectrometers,thedetectionlimitistypically0.1mol%aromatichydrogenatomsand0.5mol%aromaticcarbonatoms.Forcontinuouswave(CW)spectrometers,whicharesuitableformeasuringaromatichydrogencontentsonly,thedetectionlimitisconsiderablyhigherandtypically0.5mol%aromatichydrogenatoms.Thereportedunitsaremolepercentaromatichydrogenatomsandmolepercentaromaticcarbonatoms.Thistestmethodisnotapplicabletosamplescontainingmorethan1mass%olefinicorphenoliccompounds。ThistestmethoddoesnotcoverthedeterminationofthepercentagemassofaromaticcompoundsinoilssinceNMRsignalsfrombothsaturatedhydrocarbonsandaliphaticsubstituentsonaromaticringcompoundsappearinthesamechemicalshiftregion.Forthedeterminationofmassorvolumepercentaromaticsinhydrocarbonoils,chromatographic,ormassspectrometrymethodscanbeused.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificprecautionarystatementsaregivenin7.2and7.4.
【中国标准分类号】:E30
【国际标准分类号】:75_080
【页数】:
【正文语种】:英语