ASTM E972-1996(2007) 用阳光对薄板材料的太阳能光度透设比的测试方法

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【英文标准名称】:StandardTestMethodforSolarPhotometricTransmittanceofSheetMaterialsUsingSunlight
【原文标准名称】:用阳光对薄板材料的太阳能光度透设比的测试方法
【标准号】:ASTME972-1996(2007)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:传输;试验;光度;阳光;太阳能;薄板材;太阳辐射
【英文主题词】:photometer;sheetmaterials;solarluminoustransmittance;solarphotometrictransmittance;sunlight;transmittance
【摘要】:Glazedaperturesinbuildingsaregenerallyutilizedforthecontrolledadmissionofbothlightandsolarradiantheatenergyintothestructure.Otherdevicesmayalsobeusedtoreflectlightandsolarradiantheatintoabuilding.Thebulkofthesolarradiantenergyenteringabuildinginthismannerpossesseswavelengthsthatliefrom300to2500nm(3000to25000E).Onlytheportionfrom380to760nm(3800to7600E)isvisibleradiation,however.Indaylightingapplications,itisthereforeimportanttodistinguishtheradiant(solarradiantenergy)transmittanceorreflectanceofthesematerialsfromtheirluminous(light)transmittanceorreflectance.Forcomparisonsoftheenergyandilluminationperformancesofbuildingfenestrationsystemsitisimportantthatthecalculationormeasurement,orboth,ofsolarradiantandluminoustransmittanceandreflectanceofmaterialsusedinfenestrationsystemsusethesameincidentsolarspectraldistribution.Solarluminoustransmittanceandreflectanceareimportantpropertiesindescribingtheperformanceofcomponentsofsolarilluminationsystemsincludingwindows,clerestories,skylights,shadingandreflectingdevices,andotherpassivefenestrationsthatpermitthepassageofdaylightaswellassolarradiantheatenergyintobuildings.Thistestmethodisusefulfordeterminingthesolarluminoustransmittanceandreflectanceofopticallyinhomogeneoussheetmaterialsanddiffuselyreflectingmaterialsusedinnaturallightingsystemsthatareusedaloneorinconjunctionwithpassiveoractivesolarheatingsystems,orboth.Thistestmethodprovidesameansofmeasuringsolarluminoustransmittanceunderfixedconditionsofincidenceandviewing.Thistestmethodhasbeenfoundpracticalforbothtransparentandtranslucentmaterialsaswellasforthosewithtransmittancesreducedbyreflectivecoatings.Thistestmethodisparticularlyapplicabletothemeasurementofluminoustransmittanceofinhomogeneous,fiberreinforced,patterned,corrugated,orotherwiseopticallyinhomogeneousmaterialswhenthetransmittanceisaveragedoveranareathatislargeincomparisontotheinhomogeneities.1.1Thistestmethodcoversthemeasurementofsolarphotometrictransmittanceofmaterialsinsheetform.Solarphotometrictransmittanceismeasuredusingaphotometer(illuminancemeter)inanenclosurewiththesunandskyasthesourceofradiation.TheenclosureandmethodoftestisspecifiedinTestMethodE1175(orTestMethodE1084).1.2Thepurposeofthistestmethodistospecifyaphotometricsensortobeusedwiththeprocedureformeasuringthesolarphotometrictransmittanceofsheetmaterialscontaininginhomogeneitiesintheiropticalproperties.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F12
【国际标准分类号】:17_180_20
【页数】:4P.;A4
【正文语种】: