ASTM D1204-2008 高温点非刚硬性热塑料板或薄膜线性尺寸变化的标准试验方法

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【英文标准名称】:StandardTestMethodforLinearDimensionalChangesofNonrigidThermoplasticSheetingorFilmatElevatedTemperature
【原文标准名称】:高温点非刚硬性热塑料板或薄膜线性尺寸变化的标准试验方法
【标准号】:ASTMD1204-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D20.19
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:film;sheeting;temperature;thermoplastic;Dimensionalchange;Dimensionalstability;Linearchanges/linearity--plastics;Nonrigidplastics;Plasticsheetandfilm;Temperaturetests--plastics;Thermoplastics
【摘要】:Thistestmethodisparticularlyapplicabletononrigidthermoplasticsheetingorfilmmadebythecalenderorextrusionprocess.Thetestgivesanindicationoflot-to-lotuniformityasregardstothedegreeofinternalstrainsintroducedduringprocessing.TheheatingmediuminthistestmethodisairandmaynotyieldthesameresultsasTestMethodD2732,whichusesaliquidmedium.Beforeproceedingwiththistestmethod,referenceshouldbemadetothespecificationofthematerialbeingtested.Anytestspecimenpreparation,conditioning,dimensions,ortestingparameters,orcombinationthereof,coveredintherelevantASTMmaterialspecificationshalltakeprecedenceoverthosementionedinthistestmethod.IftherearenorelevantASTMmaterialspecifications,thenthedefaultconditionsapply.Table1ofClassificationSystemD4000liststheASTMmaterialstandardsthatcurrentlyexist.1.1Thistestmethodcoversthemeasurementofchangesinlineardimensionsofnonrigidthermoplasticsheetingorfilmthatresultfromexposureofthematerialtospecifiedconditionsofelevatedtemperatureandtime.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThistestmethodandISO11501addressthesamematter,butdifferintechnicalcontent(andresultscannotbedirectlycomparedbetweenthetwomethods).
【中国标准分类号】:G33
【国际标准分类号】:83_140_10
【页数】:2P.;A4
【正文语种】:英语