【英文标准名称】:StandardTestMethodforAnalysisofHighPurityBenzeneforCyclohexaneFeedstockbyCapillaryGasChromatography
【原文标准名称】:毛细管气相色谱法分析环己烷原料中高纯度苯的标准试验方法
【标准号】:ASTMD5713-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D16.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:苯;气相色谱法;环已烷
【英文主题词】:benzene;cyclohexanefeedstock;impurities
【摘要】:Thistestmethodisdesignedtoobtainbenzenepurityonthebasisofimpuritiesnormallypresentinbenzeneandmaybeusedforfinalproductinspectionsandprocesscontrol.Thistestmethodwilldetectthefollowingimpurities:toluene,methylcyclopentane,n-hexane,2-methylhexane,cyclohexane,cyclopentane,2-methylpentane,2,3-dimethylpentane,3-methylhexane,n-heptane,methylcyclohexane,ethylcyclopentane,2,4-dimethylhexane,trimethylpentane,andotherswherespecificimpuritystandardsareavailable.Absolutepuritycannotbeaccuratelydeterminedifunknownimpuritiesarepresent.1.1Thistestmethodcoversthedeterminationofspecificimpuritiesin,andthepurityofbenzeneforcyclohexanefeedstockbygaschromatography.1.2Thistestmethodhasbeenfoundapplicabletobenzeneintherangefrom99to100%purityandtoimpuritiesatconcentrationsof2to10000mg/kg.1.3Indeterminingtheconformanceofthetestresultsusingthismethodtoapplicablespecifications,resultsshallberoundedoffinaccordancewiththerounding-offmethodofPracticeE29.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Foraspecifichazardstatement,see7.1andSection8.
【中国标准分类号】:G16
【国际标准分类号】:71_080_15
【页数】:4P.;A4
【正文语种】: