【英文标准名称】:Rape(colza)seedswithlowerucicacidcontent;specification
【原文标准名称】:低芥子酸含量的油菜子
【标准号】:ISO7557-1988
【标准状态】:作废
【国别】:国际
【发布日期】:1988-02
【实施或试行日期】:1988-02-01
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC34
【标准类型】:()
【标准水平】:()
【中文主题词】:农产品;油料种子;植物油;规范;作标记;包装件;菜籽油
【英文主题词】:agriculturalproducts;packages;rapeseedoil;rapeseedoil;specifications;oilseeds;marking;vegetableoils
【摘要】:
【中国标准分类号】:B33
【国际标准分类号】:5520;5295
【页数】:1P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforMeasuringtheSteady-StateThermalTransmittanceofFenestrationSystemsUsingHotBoxMethods
【原文标准名称】:隔热箱法测定主窗设计系统的稳态热传递系数的标准试验方法
【标准号】:ASTMC1199-2009e1
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:C16.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:doors;fenestration;heat;hotbox;R-value;steady-state;testing;thermaltransmission;U-factor;U-value;windows;Calibration--temperatureanalysisinstrumentation;Doors/doorassemblies;Homogeneouswall;Hotplate/boxmethods;Maskingsoundmeasurem
【摘要】:ThistestmethoddetailsthecalibrationandtestingproceduresandnecessaryadditionaltemperatureinstrumentationrequiredinapplyingTestMethodC1363tomeasurethethermaltransmittanceoffenestrationsystemsmountedverticallyinthethermalchamber.4.2Thethermaltransmittanceofatestspecimenisaffectedbyitssizeandthree-dimensionalgeometry.Caremustbeexercisedwhenextrapolatingtoproductsizessmallerorlargerthanthetestspecimen.Therefore,itisrecommendedthatfenestrationsystemsbetestedattherecommendedsizesspecifiedinPracticeE1423orNFRC100.Sincebothtemperatureandsurfaceheattransfercoefficientconditionsaffectresults,useofrecommendedconditionswillassistinreducingconfusioncausedbycomparingresultsoftestsperformedunderdissimilarconditions.StandardizedtestconditionsfordeterminingthethermaltransmittanceoffenestrationsystemsarespecifiedinPracticeE1423andSection6.2.Theperformanceofatestspecimenmeasuredatstandardizedtestconditionsispotentiallydifferentthantheperformanceofthesamefenestrationproductwheninstalledinthewallofabuildinglocatedoutdoors.Standardizedtestconditionsoftenrepresentextremesummerorwinterdesignconditions,whicharepotentiallydifferentthantheaverageconditionstypicallyexperiencedbyafenestrationproductinstalledinanexteriorwall.Forthepurposeofcomparison,itisessentialtocalibratewithsurfaceheattransfercoefficientsontheCalibrationTransferStandard(CTS)whichareascloseaspossibletotheconventionallyacceptedvaluesforbuildingdesign;however,thisprocedurecanbeusedatotherconditionsforresearchpurposesorproductdevelopment.Simiarly,itwouldbedesirabletohaveasurroundpanelthatcloselyduplicatestheactualwallwherethefenestrationsystemwouldbeinstalled.SincetherearesuchawidevarietyoffenestrationsystemopeningsinNorthAmericanresidential,commercialandindustrialbuildings,itisnotfeasibletoselectatypicalsurroundpanelconstructionforinstallingthefenestrationsystemtestspecimen.Furthermore,forhighresistancefenestrationsystemsinstalledinfenestrationopeningdesignsandconstructionsthathavethermalbridges,thelargerelativeamountofheattransferthroughthethermalbridgewillcausetherelativelysmallamountofheattransferthroughthefenestrationsystemtohavealargerthandesirableerror.Forthisreason,theCalibrationTransferStandardandtestspecimenareinstalledinahomogeneoussurroundpanelconstructedfrommaterialshavingarelativelyhighthermalresistance.Installingthetestspecimeninarelativelyhighthermalresistancesurroundpanelplacesthefocusofthetestonthefenestrationsystemthermalperformancealone.Therefore,itisimportanttorecognizethatthethermaltransmittanceresultsobtainedfromthistestmethodareforideallaboratoryconditions,andshouldonlybeusedforfenestrationproductcomparisonsunlessthethermalbridgeeffectsthathavethepotentialtooccurduetothespecificdesignandconstructionofthefenestrationsystemopeningareincludedintheanalysis.4.5Thistestmethoddoesnotincludeprocedurestodeterminetheheatflowduetoeitherairmovementthroughthespecimenorsolarradiationeffects.Asaconsequence,thethermaltransmittanceresultsobtaineddonotreflectperformancesthatmaybeexpectedfromfieldinstallations.Itispossibletousetheresultsfromthistestmethodasinputtoannualenergyperformanceanalyseswhichincludesolar,andairleakageeffectstogetabetterestimateofhowthetestspecimenwouldperformwheninstalledinanactualbuilding.TodeterminetheSolarHeatGainCoefficientoffenestrationproducts,refertoNFRC200.Todetermineairleakagefor......
【中国标准分类号】:P32
【国际标准分类号】:
【页数】:23P.;A4
【正文语种】:英语