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【英文标准名称】:StandardTestMethodforDeterminationofLinearLowDensityPolyethylene(LLDPE)CompositionbyCarbon-13NuclearMagneticResonance
【原文标准名称】:用碳-13核磁共振法测定线性低密度聚乙烯成分的标准试验方法
【标准号】:ASTMD5017-1996(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【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】:D20.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:carbon-13NMR;composition;LLDPE;polyethylene;Carbon-13nuclearmagneticresonancespectroscopy;Compositionanalysis--plastics;Density--plastics;LLDPE(linearlow-densitypolyethylene);Nuclearmagneticresonance(NMR)spectrometry;Polyethy
【摘要】:Performancepropertiesaredependentonthenumberandtypeofshortchainbranches.Thistestmethodpermitsmeasurementofthesebranchesforethylenecopolymerswithpropylene,butene-1,hexene-1,octene-1,and4-methylpentene-1.1.1Thistestmethoddeterminesthemolarcompositionofcopolymerspreparedfromethylene(ethene)andasecondalkene-1monomer.Thissecondmonomercanincludepropene,butene-1,hexene-1,octene-1,and4-methylpentene-1.1.2CalculationsofthistestmethodarevalidforproductscontainingunitsEEXEE,EXEXE,EXXE,EXXXE,andofcourseEEEwhereEequalsetheneandXequalsalkene-1.Copolymerscontainingaconsiderablenumberofalkene-1blocks(suchas,longerblocksthanXXX)areoutsidethescopeofthistestmethod.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeSection8foraspecifichazardstatement.Note18212;ThereisnoequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:7P.;A4
【正文语种】:英语