ASTM D3769-2010 微孔氨基甲酸乙酯高温垂弛度的标准试验方法

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【英文标准名称】:StandardTestMethodforMicrocellularUrethanes--HighTemperatureSag
【原文标准名称】:微孔氨基甲酸乙酯高温垂弛度的标准试验方法
【标准号】:ASTMD3769-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D20.22
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:deformation;heatsag;high-temperature;microcellular;sag;urethane;Elevatedtemperaturetests;Flexiblecellularmaterials;Sag;Urethanes--microcellular
【摘要】:Thistestmethodisusedtoindicatethedeformationtendencyofmicrocellularmaterialsthatmayoccurduringpaintapplicationinanassemblyplantoperation.Sinceastandardspecimenisused,heatsagmeasurementscannotbeassumedtobeexactlythosewhichwilloccuronapartduringorafterthepaintapplicationandbakingoperationofanassemblyprocess.Beforeproceedingwiththistestmethod,referenceshouldbemadetothespecificationofthematerialbeingtested.Anytestspecimenpreparation,conditioning,ordimensions,orcombinationthereof,andtestingparameterscoveredinthematerialsspecificationshalltakeprecedenceoverthosementionedinthesetestmethods.Iftherearenomaterialspecifications,thenthedefaultconditionsapply.Note28212;Thistestmethodisapplicabletosolidurethanes.1.1Thistestmethodcoverstheprocedureandapparatusformeasuringhigh-temperaturesagofmicrocellularurethanematerials.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThereisnosimilarorequivalentISOstandardtothistestmethod.
【中国标准分类号】:G31
【国际标准分类号】:83_100
【页数】:3P.;A4
【正文语种】:英语

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