标准资料网-标准资料免费资源平台

【英文标准名称】:Thermalperformanceofbuildingmaterialsandproducts-Determinationofthermalresistancebymeansofguardedhotplateandheatflowmetermethods-Productsofhighandmediumthermalresistance
【原文标准名称】:建筑材料和产品的热性能.用护热板和热流计的方法测定热阻.高和中耐热的产品
【标准号】:BSEN12667-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2001-03-15
【实施或试行日期】:2001-03-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:导热性;试验条件;热阻;施工材料;热试验;隔热;温度;设计
【英文主题词】:Checkingequipment;Construction;Constructionmaterials;Definition;Definitions;Determination;Heatflow;Heatflowdensity;Heattransfer;Heat-measuringinstruments;Laboratorytesting;Mathematicalcalculations;Measurement;Measuringinstruments;Measuringplates;Measuringtechniques;Plateapparatus;Temperaturedifferences;Testequipment;Testspecimens;Testing;Thermalconductivity;Thermalprotection;Thermalresistance;Thermaltransmissioncoefficient;Thermaltransmittance;Thermodynamicproperties
【摘要】:Thisstandardspecifiesprinciplesandtestingproceduresfordetermining,bymeansoftheguardedhotplateorheatflowmetermethods,thethermalresistanceoftestspecimenshavingathermalresistanceofnotlessthan0,5m·K/WNOTE1Theabovelimitisduetotheeffectofcontactthermalresistances.Anupperlimitformeasurablethermalresistancedependsuponanumberoffactorsdescribedinthisstandard,butauniquefigurecannotbeassigned.Itappliesinprincipletoanymeantesttemperature,buttheequipmentdesigninannexDisessentiallyintendedtooperatebetweenaminimumcoolingunittemperatureof-100℃andmaximumheatingunittemperatureof+100℃.NOTE2Limitstothemeantesttemperatureareonlyimposedbythematerialsusedintheapparatusconstructionandbyancillaryequipment.Itsuppliesadditionallimitsforequipmentperformanceandtestconditions.Itdoesnotsupplygeneralequipmentdesignprocedures,equipmenterroranalysis,equipmentperformancecheckortheassessmentofequipmentaccuracy.Itsuppliesexampledesignsofequipmentcomplyingwiththerequirementssetdowninthisstandard.Thisstandarddoesnotsupplygeneralguidanceandbackgroundinformation(e.g.theheattransferpropertytobereported,product-dependentspecimenpreparations,proceduresrequiringmultiplemeasurements,suchasthosetoassesstheeffectofspecimennon-homogeneities,thosetotestspecimenswhosethicknessexceedstheapparatuscapabilities,andthosetoassesstherelevanceofthethicknesseffect).Duetotheselimitations,thisstandardshouldbeusedinconjunctionwiththeproductstandardrelevanttotheproducttobetested.Althoughintendedprimarilyforbuildingmaterials,itcanalsobeusedforspecimensofanymaterialthatconformstotherequirementsspecified.Thisstandarddoesnotcovermeasurementsonmoistproductsofanythermalresistanceormeasurementsonthickproductsofhighandmediumthermalresistance.
【中国标准分类号】:Q04
【国际标准分类号】:91_100_01;91_120_10
【页数】:58P.;A4
【正文语种】:英语

标准名称：	内圆磨床接杆 C型 尺寸
中标分类：	机械 >> 金属切削机床 >> 机床辅具与附件
替代情况：	被JB/T 9161.5-99代替
发布日期：
实施日期：	1990-10-01
首发日期：
作废日期：
出版日期：

没有内容

没有内容

没有内容

没有内容