BS EN ISO 179-2-1999 塑料.摆式冲击特性测定.仪器记录冲击试验
作者:标准资料网 时间:2024-05-09 16:09:46 浏览:8421
来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Plastics-DeterminationofCharpyimpactproperties-Instrumentedimpacttest
【原文标准名称】:塑料.摆式冲击特性测定.仪器记录冲击试验
【标准号】:BSENISO179-2-1999
【标准状态】:作废
【国别】:英国
【发布日期】:1999-09-15
【实施或试行日期】:1999-09-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:却贝(摆式冲击试验);摆式冲击试验;定义(术语);抗冲击(强度);冲击测试;冲击测试机;冲击试验;机械测试;切口试棒冲击弯曲试验;塑料;试验设备;试样
【英文主题词】:Charpy;Charpyimpacttests;Definitions;Impactresistance;Impacttesting;Impacttestingmachines;Impacttests;Mechanicaltesting;Notched-barimpactbendingtests;Plastics;Testequipment;Testspecimens
【摘要】:1ThispartofISO179specifiesamethodfordeterminingCharpyimpactpropertiesofplasticsfromforce-deflectiondiagrams.Differenttypesofrod-shapedtestspecimenandtestconfiguration,aswellastestparametersdependingonthetypeofmaterial,thetypeoftestspecimenandthetypeofnotcharedefinedinpart1ofISO179.Dynamiceffectssuchasload-cell/strikerresonance,testspecimenresonanceandinitial-contact/inertiapeaksaredescribed(seefigure1,curveb,andannexA).2ForthecomparisonbetweenCharpyandIzodtestmethods,seeISO179-1,clause1.ISO179-1issuitableforcharacterizingtheimpactbehaviourbytheimpactstrengthonlyandforusingapparatuswhosepotentialenergyismatchedapproximatelytotheparticularenergytobreaktobemeasured(seeISO13802,annexC).ThispartofISO179isusedifaforce-deflectionorforce-timediagramisnecessaryfordetailedcharacterizationoftheimpactbehaviour,andfordevelopingautomaticapparatus,i.e.avoidingtheneed,mentionedabove,tomatchenergy.3Fortherangeofmaterialswhichmaybetestedbythismethod,seeISO179-1,clause1.4Forthegeneralcomparabilityoftestresults,seeISO179-1,clause1.5Themethodmaynotbeusedasasourceofdatafordesigncalculationsoncomponents.However,thepossibleuseofdataisnotthesubjectofthispartofISO179.AnyapplicationofdataobtainedusingthispartofISO179shouldbespecifiedbyareferringstandardoragreeduponbytheinterestedparties.Informationonthetypicalbehaviourofmaterialscanbeobtainedbytestingatdifferenttemperatures,byvaryingthenotchradiusand/orspecimenthicknessandbytestingspecimenspreparedunderdifferentconditions.ItisnotthepurposeofthispartofISO179togiveaninterpretationofthemechanismoccurringateverypointontheforce-deflectiondiagram.Theseinterpretationsareataskforon-goingscientificresearch.6Thetestresultsarecomparableonlyiftheconditionsoftestspecimenpreparation,aswellasthetestconditions,arethesame.Comprehensiveevaluationofthereactiontoimpactstressrequiresthatdeterminationsbemadeasafunctionofdeformationrateandtemperaturefordifferentmaterialvariablessuchascrystallinityandmoisturecontent.Theimpactbehaviouroffinishedproductscannot,therefore,bepredicteddirectlyfromthistest,buttestspecimensmaybetakenfromfinishedproductsfortestingbythismethod.7ImpactstrengthsdeterminedbythismethodmayreplacethosedeterminedusingISO179-1ifcomparabilityhasbeenestablishedbyprevioustests.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:24P.;A4
【正文语种】:英语
【原文标准名称】:塑料.摆式冲击特性测定.仪器记录冲击试验
【标准号】:BSENISO179-2-1999
【标准状态】:作废
【国别】:英国
【发布日期】:1999-09-15
【实施或试行日期】:1999-09-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:却贝(摆式冲击试验);摆式冲击试验;定义(术语);抗冲击(强度);冲击测试;冲击测试机;冲击试验;机械测试;切口试棒冲击弯曲试验;塑料;试验设备;试样
【英文主题词】:Charpy;Charpyimpacttests;Definitions;Impactresistance;Impacttesting;Impacttestingmachines;Impacttests;Mechanicaltesting;Notched-barimpactbendingtests;Plastics;Testequipment;Testspecimens
【摘要】:1ThispartofISO179specifiesamethodfordeterminingCharpyimpactpropertiesofplasticsfromforce-deflectiondiagrams.Differenttypesofrod-shapedtestspecimenandtestconfiguration,aswellastestparametersdependingonthetypeofmaterial,thetypeoftestspecimenandthetypeofnotcharedefinedinpart1ofISO179.Dynamiceffectssuchasload-cell/strikerresonance,testspecimenresonanceandinitial-contact/inertiapeaksaredescribed(seefigure1,curveb,andannexA).2ForthecomparisonbetweenCharpyandIzodtestmethods,seeISO179-1,clause1.ISO179-1issuitableforcharacterizingtheimpactbehaviourbytheimpactstrengthonlyandforusingapparatuswhosepotentialenergyismatchedapproximatelytotheparticularenergytobreaktobemeasured(seeISO13802,annexC).ThispartofISO179isusedifaforce-deflectionorforce-timediagramisnecessaryfordetailedcharacterizationoftheimpactbehaviour,andfordevelopingautomaticapparatus,i.e.avoidingtheneed,mentionedabove,tomatchenergy.3Fortherangeofmaterialswhichmaybetestedbythismethod,seeISO179-1,clause1.4Forthegeneralcomparabilityoftestresults,seeISO179-1,clause1.5Themethodmaynotbeusedasasourceofdatafordesigncalculationsoncomponents.However,thepossibleuseofdataisnotthesubjectofthispartofISO179.AnyapplicationofdataobtainedusingthispartofISO179shouldbespecifiedbyareferringstandardoragreeduponbytheinterestedparties.Informationonthetypicalbehaviourofmaterialscanbeobtainedbytestingatdifferenttemperatures,byvaryingthenotchradiusand/orspecimenthicknessandbytestingspecimenspreparedunderdifferentconditions.ItisnotthepurposeofthispartofISO179togiveaninterpretationofthemechanismoccurringateverypointontheforce-deflectiondiagram.Theseinterpretationsareataskforon-goingscientificresearch.6Thetestresultsarecomparableonlyiftheconditionsoftestspecimenpreparation,aswellasthetestconditions,arethesame.Comprehensiveevaluationofthereactiontoimpactstressrequiresthatdeterminationsbemadeasafunctionofdeformationrateandtemperaturefordifferentmaterialvariablessuchascrystallinityandmoisturecontent.Theimpactbehaviouroffinishedproductscannot,therefore,bepredicteddirectlyfromthistest,buttestspecimensmaybetakenfromfinishedproductsfortestingbythismethod.7ImpactstrengthsdeterminedbythismethodmayreplacethosedeterminedusingISO179-1ifcomparabilityhasbeenestablishedbyprevioustests.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:24P.;A4
【正文语种】:英语
下载地址: 点击此处下载
