ANSI/ASTM D638-2001 塑料拉伸性能试验方法

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【英文标准名称】:TestMethodforTensilePropertiesofPlastics(08.01)
【原文标准名称】:塑料拉伸性能试验方法
【标准号】:ANSI/ASTMD638-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【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;塑料;特性
【英文主题词】:properties;plastics;testing
【摘要】:Thistestmethodcoversthedeterminationofthetensilepropertiesofunreinforcedandreinforcedplasticsintheformofstandarddumbbell-shapedtestspecimenswhentestedunderdefinedconditionsofpretreatment,temperature,humidity,andtestingmachinespeed.Thistestmethodcanbeusedfortestingmaterialsofanythicknessupto14mm[0.55in.].However,fortestingspecimensintheformofthinsheeting,includingfilmlessthan1.0mm[0.04in.]inthickness,TestMethodsD882isthepreferredtestmethod.Materialswithathicknessgreaterthan14mm[0.55in.]mustbereducedbymachining.ThistestmethodincludestheoptionofdeterminingPoisson'sratioatroomtemperature.Note1-ThistestmethodandISO527-1aretechnicallyequivalent.Note2-Thistestmethodisnotintendedtocoverprecisephysicalprocedures.Itisrecognizedthattheconstantrateofcrossheadmovementtypeoftestleavesmuchtobedesiredfromatheoreticalstandpoint,thatwidedifferencesmayexistbetweenrateofcrossheadmovementandrateofstrainbetweengagemarksonthespecimen,andthatthetestingspeedsspecifieddisguiseimportanteffectscharacteristicofmaterialsintheplasticstate.Further,itisrealizedthatvariationsinthethicknessesoftestspecimens,whicharepermittedbytheseprocedures,producevariationsinthesurface-volumeratiosofsuchspecimens,andthatthesevariationsmayinfluencethetestresults.Hence,wheredirectlycomparableresultsaredesired,allsamplesshouldbeofequalthickness.Specialadditionaltestsshouldbeusedwheremoreprecisephysicaldataareneeded.Note3-Thistestmethodmaybeusedfortestingphenolicmoldedresinorlaminatedmaterials.However,wherethesematerialsareusedaselectricalinsulation,suchmaterialsshouldbetestedinaccordancewithTestMethodsD229andTestMethodD651.Note4-Fortensilepropertiesofresin-matrixcompositesreinforcedwithorientedcontinuousordiscontinuoushighmodulus20-GPa[3.010-psi]fibers,testsshallbemadeinaccordancewithTestMethodD3039/D3039M.Testdataobtainedbythistestmethodarerelevantandappropriateforuseinengineeringdesign.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninbracketsareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:
【正文语种】:英语