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【英文标准名称】:StandardTestMethodforAnalysisofHigh-Purityn-HeptaneandIsooctanebyCapillaryGasChromatography
【原文标准名称】:用毛细管气相色谱法分析高纯度n-庚烷和异辛烷的标准试验方法
【标准号】:ASTMD2268-1993(2008)
【标准状态】:现行
【国别】:美国
【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】:D02.04.0L
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:ASTMknocktestreferencefuels;capillarycolumn;gaschromatography;isooctane;n-heptane
【摘要】:Thistestmethodisusedforspecificationanalysisofhigh-purityn-heptaneandisooctane,whichareusedasASTMKnockTestReferenceFuels.Hydrocarbonimpuritiesorcontaminants,whichcanadverselyaffecttheoctanenumberofthesefuels,arepreciselydeterminedbythismethod.1.1Thistestmethodcoversandprovidesfortheanalysisofhigh-purity(greaterthan99.5%byvolume)n-heptaneandisooctane(2,2,4-trimethylpentane),whichareusedasprimaryreferencestandardsindeterminingtheoctanenumberofafuel.Individualcompoundspresentinconcentrationsoflessthan0.01%canbedetected.Columnsspecifiedbythistestmethodmaynotallowseparationofallimpuritiesinreferencefuels.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G17
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:英语