ASTM F1164-1997(2009)e1 评定暴露在加速风化和双轴向应力下透明塑料的标准试验方法
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【英文标准名称】:StandardTestMethodforEvaluationofTransparentPlasticsExposedtoAcceleratedWeatheringCombinedwithBiaxialStress
【原文标准名称】:评定暴露在加速风化和双轴向应力下透明塑料的标准试验方法
【标准号】:ASTMF1164-1997(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:F07.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:acceleratedweathering;biaxialstress;coatingadhesion;crazing;transparentplastics;Aerospacetransparentenclosures;Compositeplasticmaterials/applications;Conditioning;Crazing--aerospaceplastics;Degradation--plastics;Fresnel-reflectorsy
【摘要】:Thedegradationofopticalpropertiesoftransparentplasticsisthesinglegreatestcauseforin-serviceremovalandreplacement.Someopticalqualitiesareinherentinthegeometry,manufacturingprocess,andmaterials,andremainrelativelyunchangedaftermanufacture,whileothersaresubjecttogradualchangeduringexposuretotheserviceenvironment.Factorshavinganinfluenceonthecrazingoftransparentplasticsincludestress,ultraviolet(UV),moisture,andtemperature.Sufficientdatahasbeengeneratedtomakeitevidentthatreal-worldconditioningmustbeexperiencedbydevelopmentaltestspecimens,asopposedtotestingnewunexposedmaterialtodeterminedurability,priortoin-serviceusage.However,thelaboratorysimulationofnaturalweathering,andespeciallyacceleratedsimulation,isimpreciseandcorrelationofresultsobtainedfordifferentplasticsorfromusingdifferentexposureapparatusshouldnotbeattempteduntilavaliddatabasehasbeengeneratedforsuchcross-correlation.1.1Thistestmethodcoverstheresistanceoftransparentplasticsexposedtoenvironmentalconditioning(acceleratedweathering)underabiaxialstressstateinducedbyapressurecell/testfixture.1.2Thevaluesstatedinacceptablemetricunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:4P.;A4
【正文语种】:英语
【原文标准名称】:评定暴露在加速风化和双轴向应力下透明塑料的标准试验方法
【标准号】:ASTMF1164-1997(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:F07.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:acceleratedweathering;biaxialstress;coatingadhesion;crazing;transparentplastics;Aerospacetransparentenclosures;Compositeplasticmaterials/applications;Conditioning;Crazing--aerospaceplastics;Degradation--plastics;Fresnel-reflectorsy
【摘要】:Thedegradationofopticalpropertiesoftransparentplasticsisthesinglegreatestcauseforin-serviceremovalandreplacement.Someopticalqualitiesareinherentinthegeometry,manufacturingprocess,andmaterials,andremainrelativelyunchangedaftermanufacture,whileothersaresubjecttogradualchangeduringexposuretotheserviceenvironment.Factorshavinganinfluenceonthecrazingoftransparentplasticsincludestress,ultraviolet(UV),moisture,andtemperature.Sufficientdatahasbeengeneratedtomakeitevidentthatreal-worldconditioningmustbeexperiencedbydevelopmentaltestspecimens,asopposedtotestingnewunexposedmaterialtodeterminedurability,priortoin-serviceusage.However,thelaboratorysimulationofnaturalweathering,andespeciallyacceleratedsimulation,isimpreciseandcorrelationofresultsobtainedfordifferentplasticsorfromusingdifferentexposureapparatusshouldnotbeattempteduntilavaliddatabasehasbeengeneratedforsuchcross-correlation.1.1Thistestmethodcoverstheresistanceoftransparentplasticsexposedtoenvironmentalconditioning(acceleratedweathering)underabiaxialstressstateinducedbyapressurecell/testfixture.1.2Thevaluesstatedinacceptablemetricunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:4P.;A4
【正文语种】:英语
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