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【英文标准名称】:Glassinbuilding.Determinationofthermaltransmittance(Uvalue).Heatflowmetermethod
【原文标准名称】:建筑玻璃.热传递系数(U值)的测定.热流计法
【标准号】:BSEN675-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-06-30
【实施或试行日期】:2011-06-30
【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】:
【英文主题词】:Construction;Definitions;Determination;Glass;Glassforbuildingpurposes;Glazing;Heatflow;Heattransmission;Measurement;Measuringinstruments;Measuringtechniques;Multipleglazing;Thermalinsulation;Thermalprotection;Thermalresistance;Thermaltransmissioncoefficient;U-values;Windows
【摘要】:ThisEuropeanStandardspecifiesameasurementproceduretodeterminethethermaltransmittanceofglazingwithflatandparallelsurfaces.ForthepurposeofthisStandard,structuredsurfacesmaybeconsideredtobeflat..ThisEuropeanStandardappliestomultipleglazingwithouterpaneswhicharenottransparenttofarinfraredradiation(inthewavelengthrange5μmto50μm),whichisthecaseforsodalimesilicateglassproducts,borosilicateglassandglassceramics.Internalelementscanbefarinfraredtransparent.TheprocedurespecifiedinthisEuropeanStandarddeterminestheUvalue(thermaltransmittance)inthecentralareaofglazing.Theedgeeffectsduetothethermalbridgethroughthespacerofaninsulatingglassunitorthroughthewindowframearenotincluded.Energytransferduetosolarradiationisalsoexcluded.TheprocedurespecifiedinthisEuropeanStandardshouldbeconsideredonlywhenthethermaltransmittanceoftheglazingcannotbecalculatedinaccordancewithEN673.Thedeterminationofthethermaltransmittanceisperformedforconditionswhichcorrespondtotheaveragesituationforglazinginpractice.
【中国标准分类号】:Q33
【国际标准分类号】:81_040_20
【页数】:18P.;A4
【正文语种】:英语