ASTM D1525-2009 塑料维卡(Vicat)软化温度的标准试验方法

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【英文标准名称】:StandardTestMethodforVicatSofteningTemperatureofPlastics
【原文标准名称】:塑料维卡(Vicat)软化温度的标准试验方法
【标准号】:ASTMD1525-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D20.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:plastics;thermoplastics;Vicatsofteningtemperature;Softeningtemperature;Temperaturetests--plastics;Thermoplastics;Vicatsofteningtemperature(VST)
【摘要】:Dataobtainedbythistestmethodisusedtocomparetheheat-softeningqualitiesofthermoplasticmaterials.Thistestmethodisusefulintheareasofqualitycontrol,development,andcharacterizationofplasticmaterials.1.1Thistestmethodcoversdeterminationofthetemperatureatwhichaspecifiedneedlepenetrationoccurswhenspecimensaresubjectedtospecifiedcontrolledtestconditions.1.2Thistestmethodisnotrecommendedforethylcellulose,nonrigidpoly(vinylchloride),poly(vinylidenechloride),orothermaterialshavingawideVicatsofteningrange.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.1.4Duetothepotentialsafetyandenvironmentalhazardsassociatedwithmercury-filledthermometers,theuseofalternativetemperaturemeasuringdevices(suchasthermocouplesandRTDs)isencouraged.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThistestmethodisequivalenttoISO306inallsectionswiththeexceptionsoftheallowanceforcreep,priortothebeginningofthetestandtheallowanceofthefluidizedpowderasaheattransfermedium.
【中国标准分类号】:G33
【国际标准分类号】:83_080_01
【页数】:10P.;A4
【正文语种】:英语