ASTM E424-1971(2007) 簿板材料的太阳能传播和反射的试验方法
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【英文标准名称】:StandardTestMethodsforSolarEnergyTransmittanceandReflectance(Terrestrial)ofSheetMaterials
【原文标准名称】:簿板材料的太阳能传播和反射的试验方法
【标准号】:ASTME424-1971(2007)
【标准状态】:现行
【国别】:
【发布日期】:1971
【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】:E44.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:透射率;箔;太阳能;试验;塑料
【英文主题词】:pyranometer;reflectance;solarenergy;spectrophotometer;terrestrialreflectance;transmittance
【摘要】:Solar-energytransmittanceandreflectanceareimportantfactorsintheheatadmissionthroughfenestration,mostcommonlythroughglassorplastics.(SeeAppendixX3.)Thesemethodsprovideameansofmeasuringthesefactorsunderfixedconditionsofincidenceandviewing.Whilethedatamaybeofassistancetodesignersintheselectionandspecificationofglazingmaterials,thesolar-energytransmittanceandreflectancearenotsufficienttodefinetherateofheattransferwithoutinformationonotherimportantfactors.Themethodshavebeenfoundpracticalforbothtransparentandtranslucentmaterialsaswellasforthosewithtransmittancesreducedbyhighlyreflectivecoatings.MethodBisparticularlysuitableforthemeasurementoftransmittanceofinhomogeneous,patterned,orcorrugatedmaterialssincethetransmittanceisaveragedoveralargearea.1.1Thesetestmethodscoverthemeasurementofsolarenergytransmittanceandreflectance(terrestrial)ofmaterialsinsheetform.MethodA,usingaspectrophotometer,isapplicableforbothtransmittanceandreflectanceandistherefereemethod.MethodBisapplicableonlyformeasurementoftransmittanceusingapyranometerinanenclosureandthesunastheenergysource.SpecimensforMethodAarelimitedinsizebythegeometryofthespectrophotometerwhileMethodBrequiresaspecimen0.61m2(2ft2).Forthematerialsstudiedbythedraftingtaskgroup,bothtestmethodsgiveessentiallyequivalentresults.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G30
【国际标准分类号】:83_140_10
【页数】:6P.;A4
【正文语种】:
【原文标准名称】:簿板材料的太阳能传播和反射的试验方法
【标准号】:ASTME424-1971(2007)
【标准状态】:现行
【国别】:
【发布日期】:1971
【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】:E44.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:透射率;箔;太阳能;试验;塑料
【英文主题词】:pyranometer;reflectance;solarenergy;spectrophotometer;terrestrialreflectance;transmittance
【摘要】:Solar-energytransmittanceandreflectanceareimportantfactorsintheheatadmissionthroughfenestration,mostcommonlythroughglassorplastics.(SeeAppendixX3.)Thesemethodsprovideameansofmeasuringthesefactorsunderfixedconditionsofincidenceandviewing.Whilethedatamaybeofassistancetodesignersintheselectionandspecificationofglazingmaterials,thesolar-energytransmittanceandreflectancearenotsufficienttodefinetherateofheattransferwithoutinformationonotherimportantfactors.Themethodshavebeenfoundpracticalforbothtransparentandtranslucentmaterialsaswellasforthosewithtransmittancesreducedbyhighlyreflectivecoatings.MethodBisparticularlysuitableforthemeasurementoftransmittanceofinhomogeneous,patterned,orcorrugatedmaterialssincethetransmittanceisaveragedoveralargearea.1.1Thesetestmethodscoverthemeasurementofsolarenergytransmittanceandreflectance(terrestrial)ofmaterialsinsheetform.MethodA,usingaspectrophotometer,isapplicableforbothtransmittanceandreflectanceandistherefereemethod.MethodBisapplicableonlyformeasurementoftransmittanceusingapyranometerinanenclosureandthesunastheenergysource.SpecimensforMethodAarelimitedinsizebythegeometryofthespectrophotometerwhileMethodBrequiresaspecimen0.61m2(2ft2).Forthematerialsstudiedbythedraftingtaskgroup,bothtestmethodsgiveessentiallyequivalentresults.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G30
【国际标准分类号】:83_140_10
【页数】:6P.;A4
【正文语种】:
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