BS EN 993-15-2005 致密成形耐火制品的试验方法.热线丝(并联)法测定热导率

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【英文标准名称】:Methodsoftestfordenseshapedrefractoryproducts-Part15:Determinationofthermalconductivitybythehotwire(parallel)method
【原文标准名称】:致密成形耐火制品的试验方法.热线丝(并联)法测定热导率
【标准号】:BSEN993-15-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-11-21
【实施或试行日期】:2005-11-21
【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】:定义;测定;动态试验;电的;炉;热学;热;绝缘;材料;材料试验;数学计算;测量技术;平行;可折射的;耐熔的;耐火材料;耐熔制品;试样;温度测量;试样;试验;热物的;导热性;金属线
【英文主题词】:Definition;Definitions;Determination;Dynamictesting;Electrical;Furnaces;Heat;Hot-wires;Insulations;Materials;Materialstesting;Mathematicalcalculations;Measuringtechniques;Parallel;Refractability;Refractory;Refractorymaterials;Refractoryproducts;Samples;Temperaturemeasurement;Testspecimens;Testing;Thermal;Thermalconductivity;Wires
【摘要】:ThisEuropeanStandarddescribesahot-wire(parallel)methodforthedeterminationofthermalconductivityofrefractoryproductsandmaterials.Itisapplicabletodenseandinsulatingshapedproductsandtopowderedorgranularmaterials(see6.2),forthermalconductivitiesoflessthan25W/m.K.Thelimitsareimposedbythethermaldiffusivityofthetestmaterialandthereforebythedimensionsofthetestpieces;higherthermalconductivitiescanbemeasurediflargerpiecesareused.Electricallyconductingmaterialscannotbemeasured.NOTE1Thethermalconductivityofproductswithahydraulicorchemicalbondcanbeaffectedbytheappreciableamountofwaterthatisretainedafterhardeningorsettingandisreleasedonfiring.Thesematerialsmaythereforerequirepre-treatment;thenatureandextentofsuchpre-treatmentandtheperiodforwhichthetestpieceisheldatthemeasurementtemperatureasapreliminarytocarryingoutthetest,aredetailsthatareoutsidethescopeofthisstandardandshouldbeagreedbetweenthepartiesconcerned.NOTE2Ingeneralitisdifficulttomakemeasurementsonanisotropicmaterialsandtheuseofthismethodforsuchmaterialsshouldalsobeagreedbetweenthepartiesconcerned.
【中国标准分类号】:Q40
【国际标准分类号】:81_080
【页数】:20P.;A4
【正文语种】:英语