NF C83-155-1983 电子元器件质量评估协调体系.分规范.空白详细规范.直流聚苯乙烯薄膜固定电容器
时间:2024-05-16 18:13:27 来源: 标准资料网 作者：标准资料网 阅读：9569
【英文标准名称】:Harmonizedsystemofqualityassessmentforelectroniccomponents.Sectionalspecification.Blankdetailspecification.Fixedpolystyrenefilm.DielectricD.C.capacitors.
【原文标准名称】:电子元器件质量评估协调体系.分规范.空白详细规范.直流聚苯乙烯薄膜固定电容器
【标准号】:NFC83-155-1983
【标准状态】:现行
【国别】:法国
【发布日期】:1983-07-01
【实施或试行日期】:1983-07-21
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:L11
【国际标准分类号】:31_060_30
【页数】:34P;A4
【正文语种】:其他
【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