【英文标准名称】:Methodsoftestfordenseshapedrefractoryproducts-Determinationofthermalconductivitybythehot-wire(cross-array)method
【原文标准名称】:成形密实耐火产品的试验方法.用热丝线法(十字排列)对产品的传导性进行测定
【标准号】:BSEN993-14-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-12-15
【实施或试行日期】:1998-12-15
【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】:电路;导热性;试验设备;耐火材料;成型耐火材料;再现性;粒状材料;试验条件;试样;耐火;热测量
【英文主题词】:Ceramics;Definitions;Determination;Furnaces;Laboratoryware;Materials;Materialstesting;Mathematicalcalculations;Measurement;Measuringtechniques;Refractability;Refractorymaterials;Refractoryproducts;Temperature;Testequipment;Testspecimens;Testing;Thermalconductivity;Wires
【摘要】:ThispartofEN993specifiesahot-wire(cross-array)methodforthedeterminationofthermalconductivityofrefractoryproductsandmaterials.Itisapplicabletodenseandinsulatingshapedproductsandtopowderedorgranularmaterials(see7.3),forthermalconductivitiesoflessthan1,5W/(m·K).Electricallyconductingmaterialscannotbemeasured.NOTE1Thethermalconductivityofbondedbricksmaybeaffectedbytheappreciableamountofwaterthatisretainedafterhardeningorsettingandisreleasedonfiring.Thesematerialsmaythereforerequirepretreatment;thenatureandextentofsuchpretreatmentandtheperiodforwhichthetestpieceisheldatthemeasurementtemperature,asapreliminarytocarryingoutthetest,aredetailsthatareoutsidethescopeofthisPartofEN993andshouldbeagreedbetweenthepartiesconcerned.NOTE2Ingeneralitisdifficulttomakemeasurementsonanisotropicmaterials.Theuseofthismethodforsuchmaterialsshouldalsobeagreedbetweenthepartiesconcerned.
【中国标准分类号】:Q40
【国际标准分类号】:81_080
【页数】:12P.;A4
【正文语种】:英语