ISO 179-2-1997 塑料摆锤式冲击特性的测定第2部分:仪器冲击试验
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【英文标准名称】:Plastics-DeterminationofCharpyimpactproperties-Part2:Instrumentedimpacttest
【原文标准名称】:塑料摆锤式冲击特性的测定第2部分:仪器冲击试验
【标准号】:ISO179-2-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-12
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:试验设备;切口试棒冲击弯曲试验;冲击试验;定义;冲击试验机;塑料;摆式冲击试验;机械试验;试样
【英文主题词】:Charpy;Charpyimpacttests;Definitions;Impactresistance;Impacttesting;Impacttestingmachines;Impacttests;Mechanicaltesting;Notched-barimpactbendingtests;Plastics;Testequipment;Testspecimens
【摘要】:1.1ThispartofISO179specifiesamethodfordeterminingCharpyimpactpropertiesofplasticsfromforce-deflectiondiagrams.Differenttypesofrod-shapedtestspecimenandtestconfiguration,aswellastestparametersdependingonthetypeofmaterial,thetypeoftestspecimenandthetypeofnotcharedefinedinpart1ofISO179.Dynamiceffectssuchasload-cell/strikerresonance,testspecimenresonanceandinitial-contact/inertiapeaksaredescribed(seefigure1,curveb,andannexA).1.2ForthecomparisonbetweenCharpyandIzodtestmethods,seeISO179-1,clause1.ISO179-1issuitableforcharacterizingtheimpactbehaviourbytheimpactstrengthonlyandforusingapparatuswhosepotentialenergyismatchedapproximatelytotheparticularenergytobreaktobemeasured(seeISO13802,annexC).ThispartofISO179isusedifaforce-deflectionorforce-timediagramisnecessaryfordetailedcharacterizationoftheimpactbehaviour,andfordevelopingautomaticapparatus,i.e.avoidingtheneed,mentionedabove,tomatchenergy.1.3Fortherangeofmaterialswhichmaybetestedbythismethod,seeISO179-1,clause1.1.4Forthegeneralcomparabilityoftestresults,seeISO179-1,clause1.1.5Themethodmaynotbeusedasasourceofdatafordesigncalculationsoncomponents.However,thepossibleuseofdataisnotthesubjectofthispartofISO179.AnyapplicationofdataobtainedusingthispartofISO179shouldbespecifiedbyareferringstandardoragreeduponbytheinterestedparties.Informationonthetypicalbehaviourofmaterialscanbeobtainedbytestingatdifferenttemperatures,byvaryingthenotchradiusand/orspecimenthicknessandbytestingspecimenspreparedunderdifferentconditions.ItisnotthepurposeofthispartofISO179togiveaninterpretationofthemechanismoccurringateverypointontheforce-deflectiondiagram.Theseinterpretationsareataskforon-goingscientificresearch.1.6Thetestresultsarecomparableonlyiftheconditionsoftestspecimenpreparation,aswellasthetestconditions,arethesame.Comprehensiveevaluationofthereactiontoimpactstressrequiresthatdeterminationsbemadeasafunctionofdeformationrateandtemperaturefordifferentmaterialvariablessuchascrystallinityandmoisturecontent.Theimpactbehaviouroffinishedproductscannot,therefore,bepredicteddirectlyfromthistest,buttestspecimensmaybetakenfromfinishedproductsfortestingbythismethod.1.7ImpactstrengthsdeterminedbythismethodmayreplacethosedeterminedusingISO179-1ifcomparabilityhasbeenestablishedbyprevioustests.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:17P.;A4
【正文语种】:英语
【原文标准名称】:塑料摆锤式冲击特性的测定第2部分:仪器冲击试验
【标准号】:ISO179-2-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-12
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:试验设备;切口试棒冲击弯曲试验;冲击试验;定义;冲击试验机;塑料;摆式冲击试验;机械试验;试样
【英文主题词】:Charpy;Charpyimpacttests;Definitions;Impactresistance;Impacttesting;Impacttestingmachines;Impacttests;Mechanicaltesting;Notched-barimpactbendingtests;Plastics;Testequipment;Testspecimens
【摘要】:1.1ThispartofISO179specifiesamethodfordeterminingCharpyimpactpropertiesofplasticsfromforce-deflectiondiagrams.Differenttypesofrod-shapedtestspecimenandtestconfiguration,aswellastestparametersdependingonthetypeofmaterial,thetypeoftestspecimenandthetypeofnotcharedefinedinpart1ofISO179.Dynamiceffectssuchasload-cell/strikerresonance,testspecimenresonanceandinitial-contact/inertiapeaksaredescribed(seefigure1,curveb,andannexA).1.2ForthecomparisonbetweenCharpyandIzodtestmethods,seeISO179-1,clause1.ISO179-1issuitableforcharacterizingtheimpactbehaviourbytheimpactstrengthonlyandforusingapparatuswhosepotentialenergyismatchedapproximatelytotheparticularenergytobreaktobemeasured(seeISO13802,annexC).ThispartofISO179isusedifaforce-deflectionorforce-timediagramisnecessaryfordetailedcharacterizationoftheimpactbehaviour,andfordevelopingautomaticapparatus,i.e.avoidingtheneed,mentionedabove,tomatchenergy.1.3Fortherangeofmaterialswhichmaybetestedbythismethod,seeISO179-1,clause1.1.4Forthegeneralcomparabilityoftestresults,seeISO179-1,clause1.1.5Themethodmaynotbeusedasasourceofdatafordesigncalculationsoncomponents.However,thepossibleuseofdataisnotthesubjectofthispartofISO179.AnyapplicationofdataobtainedusingthispartofISO179shouldbespecifiedbyareferringstandardoragreeduponbytheinterestedparties.Informationonthetypicalbehaviourofmaterialscanbeobtainedbytestingatdifferenttemperatures,byvaryingthenotchradiusand/orspecimenthicknessandbytestingspecimenspreparedunderdifferentconditions.ItisnotthepurposeofthispartofISO179togiveaninterpretationofthemechanismoccurringateverypointontheforce-deflectiondiagram.Theseinterpretationsareataskforon-goingscientificresearch.1.6Thetestresultsarecomparableonlyiftheconditionsoftestspecimenpreparation,aswellasthetestconditions,arethesame.Comprehensiveevaluationofthereactiontoimpactstressrequiresthatdeterminationsbemadeasafunctionofdeformationrateandtemperaturefordifferentmaterialvariablessuchascrystallinityandmoisturecontent.Theimpactbehaviouroffinishedproductscannot,therefore,bepredicteddirectlyfromthistest,buttestspecimensmaybetakenfromfinishedproductsfortestingbythismethod.1.7ImpactstrengthsdeterminedbythismethodmayreplacethosedeterminedusingISO179-1ifcomparabilityhasbeenestablishedbyprevioustests.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:17P.;A4
【正文语种】:英语
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