【英文标准名称】:MethodsofPolyurethaneRawMaterials:DeterminationofthePolymerizedEthyleneOxideContentofPolyetherPolyols(08.03)
【原文标准名称】:聚氨酯原料试验方法:聚醚多元醇聚合环氧乙烷含量的测定(08.03)
【标准号】:ANSI/ASTMD4875-1999
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【实施或试行日期】:2000-01-18
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;环氧乙烷;化学
【英文主题词】:chemistry;ethyleneoxide;testing
【摘要】:TestMethodA-ProtonNuclearMagneticResonanceSpectroscopy(HNMR)measurespolymerizedethyleneoxide(EO)inethyleneoxide-propyleneoxidepolyethersusedinflexibleurethanefoamsandnonfoams.ItissuitablefordiolsmadefromthecommonlyusedinitatorsandcontainingEOpercentagesabovefive.Fortriolsinitiatedwithglycerinandtrimethylolpropane,anuncorrectedEOvalueisobtainedsincebothinitiatorshaveprotonsthatcontributetotheEOmeasurement.TestMethodB-Carbon-13NuclearMagneticResonanceSpectroscopy(CNMR)measuresthepolymerizedEOcontentofethyleneoxide-propyleneoxidepolyethersusedinflexibleurethanefoamsandnonfoams.ItissuitablefordiolsandtriolsmadefromthecommonlyusedinitiatorsandcontainingEOpercentagesabovefive.Note1-TherearenoequivalentISOstandards.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:
【正文语种】:英语