【英文标准名称】:StandardTestMethodforCarboxylEndGroupContentofPolyethyleneTerephthalate(PET)Yarns
【原文标准名称】:聚对苯二甲酸乙二醇酯(PET)纱线的端羧基含量的标准试验方法
【标准号】:ASTMD7409-2007e1
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【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】:D35.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Geosynthetics;PET(poly(ethyleneterephthalate));Geosynthetics;PET(poly(ethyleneterephthalate))
【摘要】:ThistestmethodcanbeusedformanufacturingqualitycontrolormanufacturingqualityassurancepurposestodeterminetheCEGconcentrationofPETyarnsusedineithergeogridsorgeotextiles.TheCEGcontentofthePETyarnsmayhaveaninfluenceonthepropertiesofthegeosynthetic,suchasitshydrolysisresistance.Thelowerthevalue,thehigherthehydrolysisresistanceoftheyarns.Thistestdoesnotsetthelimiting(maximum)valueforvariousengineeringapplications.Suchaspecificationisadecisionofthedesignengineer,owner,and/orregulator.1.1ThistestprocedureisbasedsignificantlyontheGRIGG7testprocedure,CarboxylEndGroupContentofPolyethyleneTerephthalate(PET)Yarns.1.2nbsp;nbsp;nbsp;Thistestmethodisusedtodeterminetheconcentration,inmmol/Kg,ofcarboxylendgroups(CEG)foundinpoly(ethyleneterephthalate)(PET)yarnsbytitration.1.3ThistestisapplicabletogeogridyarnsthataremadefromPETresin.Note18212;ThistestisalsoapplicabletohighstrengthgeotextileyarnsthataremadefromPETandareusedinreinforcementapplications.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W58
【国际标准分类号】:59_080_20
【页数】:3P.;A4
【正文语种】:英语