ASTM D5441-1998(2003)e1 用气相色谱法分析甲基特丁基乙醚的试验方法

作者:标准资料网 时间:2024-05-21 05:02:41  浏览:8347   来源:标准资料网

【英文标准名称】:StandardTestMethodforAnalysisofMethylTert-ButylEther(MTBE)byGasChromatography
【原文标准名称】:用气相色谱法分析甲基特丁基乙醚的试验方法
【标准号】:ASTMD5441-1998(2003)e1
【标准状态】:现行
【国别】:
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D02.04.0L
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:甲基乙醚;气相色谱法;分析;甲基;醚;丁烯;试验
【英文主题词】:methyltert-butylether;MTBE;opentubularcolumn;gaschromatography
【摘要】:ThepresenceofimpuritiesinMTBEproductcanhaveadeleteriouseffectuponthevalueofMTBEasagasolineadditive.Oxygenateandolefincontentsareofprimaryconcern.ThistestmethodprovidesaknowledgeofthecompositionofMTBEproduct.Thisisusefulintheevaluationofprocessoperationscontrol,inthevaluationoftheproduct,andforregulatorypurposes.Opentubularcolumngaschromatographywithaflameionizationdetector,usedbythetestmethod,isatechniquethatissensitivetothecontaminantscommonlyfoundinMTBE,andatechniquethatiswidelyused.1.1Thistestmethodcoversthedeterminationofthepurityofmethyltert-butylether(MTBE)bygaschromatography.ItalsoprovidesaproceduretomeasureimpuritiesinMTBEsuchasC4toC12olefins,methyl,isopropylandtert-butylalcohols,methylsec-butylandmethyltert-amylethers,acetone,andmethylethylketone.Impuritiesaredeterminedtoaminimumconcentrationof0.02mass%.1.2ThistestmethodisnotapplicabletothedeterminationofMTBEingasoline.1.3WatercannotbedeterminedbythistestmethodandmustbemeasuredbyaproceduresuchasTestMethodD1364andtheresultusedtonormalizethechromatographicvalues.1.4AmajorityoftheimpuritiesinMTBEisresolvedbythetestmethod,however,someco-elutionisencountered.1.5Thistestmethodisinappropriateforimpuritiesthatboilattemperatureshigherthan180176;Corforimpuritiesthatcausepoorornoresponseinaflameionizationdetector,suchaswater.1.6ThevaluesstatedinSI(metric)unitsofmeasurementarepreferredandusedthroughoutthestandard.Alternateunits,incommonusage,arealsoprovidedtoimproveclarityandaidtheuserofthistestmethod.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G17
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】: