【英文标准名称】:StandardPracticeforEstimationofHeatGainorLossThroughCeilingsUnderAtticsContainingRadiantBarriersbyUseofaComputerProgram
【原文标准名称】:使用计算机程序估计由阁楼下方包括辐射阻隔物的天花板实现的热增加或损失的标准实施规程
【标准号】:ASTMC1340/C1340M-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:C16.21
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:atticradiantbarriersystem;computerprogram;heatgain;heatloss;Atticinsulation;Automatedprocedures;Ceilings;Computerprograms;Heatgain/loss;Heatingtests--thermalinsulation;Radiantbarriersystems(RBS)
【摘要】:Manufacturersofradiantbarriersexpresstheperformanceoftheirproductsintermsofthetotalhemisphericalemittance.Thepurposeofaradiantbarrieristodecreasetheradiationheattransferacrosstheatticairspace,andhence,todecreasetheheatlossorgainthroughtheceilingbelowtheattic.Theamountofdecreaseinheatflowwilldependuponanumberoffactors,suchasweatherconditions,amountofmassorreflectiveinsulationintheattic,solarabsorptanceoftheroof,geometryoftheatticandroof,andamountandtypeofatticventilation.Becauseoftheinfinitecombinationsofthesefactors,itisnotpracticaltopublishdataforeachpossiblecase.Thecalculationofheatlossorgainofasystemcontainingradiantbarriersismathematicallycomplex,andbecauseoftheiterativenatureofthemethod,itisbesthandledbycomputers.Computersarenowwidelyavailabletomostproducersandconsumersofradiantbarrierstopermittheuseofthispractice.Theuserofthispracticemaywishtomodifythedatainputtorepresentaccuratelythestructure.Thecomputerprogramalsomaybemodifiedtomeetindividualneeds.Also,additionalcalculationsmaybedesired,forexample,tosumthehourlyheatflowsinsomefashiontoobtainestimatesofseasonalorannualenergyusages.Thismightbedoneusingthehourlydataasinputstoawhole-housemodel,andbychoosinghousebalancepointstouseascutoffpointsinthesummations.1.1Thispracticecoverstheestimationofheatgainorlossthroughceilingsunderatticscontainingradiantbarriersbyuseofacomputerprogram.Thecomputerprogramincludedasanadjuncttothispracticeprovidesacalculationalprocedureforestimatingtheheatlossorgainthroughtheceilingunderanatticcontainingatrussorraftermountedradiantbarrier.Theprogramalsoisapplicabletotheestimationofheatlossorgainthroughceilingsunderanatticwithoutaradiantbarrier.Thisprocedureutilizeshour-by-hourweatherdatatoestimatethehour-by-hourceilingheatflows.Theinteriorofthehousebelowtheceilingisassumedtobemaintainedataconstanttemperature.Atpresent,theprocedureisapplicabletosloped-roofatticswithrectangularfloorplanshavinganunshadedgabledroofandahorizontalceiling.Itisnotapplicabletostructureswithflatroofs,vaultedceilings,orcathedralceilings.Thecalculationalaccuracyalsoislimitedbythequalityofphysicalpropertydatafortheconstructionmaterials,principallytheinsulationandtheradiantbarrier,andbythequalityoftheweatherdata.1.2Undersomecircumstances,interactionsbetweenradiantbarriersandHVACductsinatticscanhaveasignificanteffectonthethermalperformanceofabuilding.Ductsareincludedinanextensionofthecomputermodelgivenintheappendix.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.
【中国标准分类号】:Q25
【国际标准分类号】:91_120_10
【页数】:22P.;A4
【正文语种】:英语


【英文标准名称】:Resilientfloorcoverings.Specificationforcorkmentunderlay
【原文标准名称】:弹性地板覆盖物.软木地板衬垫规范
【标准号】:BSEN12455-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-12-15
【实施或试行日期】:1999-12-15
【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】:隔音材料;背衬;抗弯应力;体密度;分类;软木制品;软木板;软木垫;定义(术语);密度;弹性的;弹性织物;挠性;地板覆盖物;负荷;作标记;材料测试;塑料;特性;规范;规范(验收);厚度
【英文主题词】:Acousticinsulatingmaterials;Backing;Bendingstress;Bulkdensity;Classification;Cork;Corkboard;Corkment;Definitions;Density;Elastic;Elasticfabrics;Flexibility;Floorcoverings;Loading;Marking;Materialstesting;Plastics;Properties;Specification;Specification(approval);Thickness
【摘要】:ThisEuropeanStandardspecifiestherequirementsofcorkmentunderlaywithlinoleumcementasbinder,suppliedinsheetform.Corkmentunderlayisusedincombinationwithfloorcoveringstoimproveimpactsoundreduction.Theperformancethereforedependsonthecombinationofcorkmentandthetypeoffloorcoveringusedandalsotheinstallationofboth.Toensurecorrectuseofcorkmentunderlaytheinstructionsofthemanufacturershouldbefollowed.NOTE:Forspecificationofcorkunderlaysmadewithotherbinders,seeEN12103.
【中国标准分类号】:Q71
【国际标准分类号】:97_150
【页数】:10P.;A4
【正文语种】:英语