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【英文标准名称】:StandardTestMethodforHeatGaintoSpacePerformanceofCommercialKitchenVentilation/ApplianceSystems
【原文标准名称】:商业厨房通风/设备系统空间加热性能的标准试验方法
【标准号】:ASTMF2474-2009
【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】:F26.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:appliances;commercialkitchenventilation;coolingload;heatgain;testmethod;Commercialkitchenventilation(CKV)systems;Heatgain/loss;Spaceperformance
【摘要】:HeatGaintoSpace8212;Thistestmethoddeterminestheheatgaintothespacefromahood/appliancesystem.Note28212;Tomaintainaconstanttemperatureintheconditionedspace,thisheatgainmustbematchedbyspacecooling.Thespacesensiblecoolingload,intons,thenequalstheheatgaininBtu/hdividedbytheconversionfactorof12000Btu/h(3.412W)pertonofcooling.Applianceheatgaindatacanbeusedforsizingairconditioningsystems.DetailsofloadcalculationprocedurescanbefoundinASHRAE,seeRef(1)andRef(2).Thecalculationofassociatedcoolingloadsfromheatgainstothetestspaceatvariousflowratescanbeusedalongwithotherinformationbyheating,ventilation,airconditioning(HVAC),andexhaustsystemdesignerstoachieveenergy-conservative,integratedkitchenventilationsystemdesigns.ParametricStudies:Thistestmethodalsocanbeusedtoconductparametricstudiesofalternativeconfigurationsofhoods,appliances,andreplacementairsystems.Ingeneral,thesestudiesareconductedbyholdingconstantallconfigurationandoperationalvariablesexceptthevariableofinterest.Thistestmethod,therefore,canbeusedtoevaluatethefollowing:Theoverallsystemperformancewithvariousappliances,whileholdingthehoodandreplacementairsystemcharacteristicsconstant.Entirehoodsorcharacteristicsofasinglehood,suchasendpanels,canbevariedwithappliancesandreplacementairconstant.Replacementaircharacteristics,suchasmakeupairlocation,direction,andvolume,canbevariedwithconstantapplianceandhoodvariables.1.1Thistestmethodcoversthedeterminationofapplianceheatgaintospacederivedfromthemeasurementandcalculationofapplianceenergyconsumption,energyexhausted,andenergytofood,basedonasystemenergybalance,parametricevaluationofoperationalordesignvariationsinappliances,hoods,orreplacementairconfigurations.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q75
【国际标准分类号】:97_040_20
【页数】:17P.;A4
【正文语种】:英语


【英文标准名称】:Zincandzincalloys-Chemicalanalysis-Determinationofchromiumandtitaniuminzincalloys-Spectrophotometricmethod
【原文标准名称】:锌和锌合金.化学分析.锌合金中铬和钛的测定.分光光度法
【标准号】:BSEN12441-10-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-01-20
【实施或试行日期】:2005-01-20
【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】:材料试验;分光光度法;质量浓度;重复性;分析;锌;锌合金;化学分析和试验;试样制备;有色金属;计算方法;铬含量;钛;含量测定;合金;铬;数学计算;分光光度仪;精密度;重复生产极限
【英文主题词】:Alloys;Analysis;Chemicalanalysisandtesting;Chromium;Chromiumcontent;Determinationofcontent;Massconcentration;Materialstesting;Mathematicalcalculations;Methodsofcalculation;Non-ferrousmetals;Precision;Repeatability;Reproducibilitylimit;Specimenpreparation;Spectrophotometer;Spectrophotometry;Titanium;Zinc;Zincalloys
【摘要】:Thisdocumentspecifiesaspectrophotometricmethodforthedeterminationofchromiumandtitaniuminzincalloys.ItisapplicabletotheproductsspecifiedinEN988,EN1774andEN12844.Itissuitableforthedeterminationofchromiumandtitaniumcontents(massfractions)between0,05%and0,50%.
【中国标准分类号】:H13
【国际标准分类号】:77_040_30;77_120_60
【页数】:16P.;A4
【正文语种】:英语