BS 6043-1.4-1981 制铝工业用炭素材料取样与试验方法.第1部分:电极硬柏油脂.第4节:甲苯不溶物质含量测定
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【英文标准名称】:Methodsofsamplingandtestforcarbonaceousmaterialsusedinaluminiummanufacture-Electrodepitch-Determinationofcontentoftoluene-insolublematerial
【原文标准名称】:制铝工业用炭素材料取样与试验方法.第1部分:电极硬柏油脂.第4节:甲苯不溶物质含量测定
【标准号】:BS6043-1.4-1981
【标准状态】:现行
【国别】:英国
【发布日期】:1981-10-31
【实施或试行日期】:1981-10-31
【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】:金属精炼;芳族化合物;试验设备;重量分析;石油产品;试样制备;脂族化合物;电解精炼;冶金工艺学;硬沥青(石油产品);碳素物质测定;非溶物质测定;精密度;甲苯;铝;电极
【英文主题词】:Aluminium;Carbonmaterials;Chemicalanalysisandtesting;Determinationofcontent;Electrodes;Industries;Metals;Production;Tars;Toluene
【摘要】:ThisInternationalStandardspecifiesagravimetricmethodforthedeterminationofthecontentoftoluene-insolublematerialinpitchusedfortheproductionofaluminium.NOTE—Thecontentoftoluene-insolublematerialiscommonlycalled"sumofresinsα+β".
【中国标准分类号】:Q50;Q52
【国际标准分类号】:71_100_10
【页数】:4P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforFlexuralStrengthofAdvancedCeramicswithEngineeredPorosity(HoneycombCellularChannels)atAmbientTemperatures
【原文标准名称】:环境温度下带工业孔隙(蜂窝状孔道)的高级陶瓷抗挠强度的标准试验方法
【标准号】:ASTMC1674-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:C28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:advancedceramics;catalysts;cellularstructure;filters;flexuralstrength;four-pointflexure;honeycomb;honeycombstructurestrength;nominalbeamstrength;porosity;three-pointflexure;wallfracturestrength
【摘要】:Thistestmethodisusedtodeterminethemechanicalpropertiesinflexureofengineeredceramiccomponentswithmultiplelongitudinalhollowchannels,commonlydescribedasx201C;honeycombx201D;channelarchitectures.Thecomponentsgenerallyhave30%ormoreporosityandthecross-sectionaldimensionsofthehoneycombchannelsareontheorderof1millimeterorgreater.Theexperimentaldataandcalculatedstrengthvaluesfromthistestmethodareusedformaterialandstructuraldevelopment,productcharacterization,designdata,qualitycontrol,andengineering/productionspecifications.Note18212;Flexuretestingisthepreferredmethodfordeterminingthenominalx201C;tensilefracturex201D;strengthofthesecomponents,ascomparedtoacompression(crushing)test.Anominaltensilestrengthisrequired,becausethesematerialscommonlyfailintensionunderthermalgradientstresses.Atruetensiletestisdifficulttoperformonthesehoneycombspecimensbecauseofgrippingandalignmentchallenges.Themechanicalpropertiesdeterminedbythistestmethodarebothmaterialandarchitecturedependent,becausethemechanicalresponseandstrengthoftheporoustestspecimensaredeterminedbyacombinationofinherentmaterialpropertiesandmicrostructureandthearchitectureofthechannelporosity[porosityfraction/relativedensity,channelgeometry(shape,dimensions,cellwallthickness,etc.),anisotropyanduniformity,etc.]inthespecimen.Comparisonoftestdatamustconsiderbothdifferencesinmaterial/compositionpropertiesaswellasdifferencesinchannelporosityarchitecturebetweenindividualspecimensanddifferencesbetweenandwithinspecimenlots.TestMethodAisauser-definedspecimengeometrywithachoiceoffour-pointorthree-pointflexuretestinggeometries.Itisnotpossibletodefineasinglefixedspecimengeometryforflexuretestingofhoneycombs,becauseofthewiderangeofhoneycombarchitecturesandcellsizesandconsiderationsofspecimensize,cellshapes,pitch,porositysize,crushstrength,andshearstrength.Asageneralrule,theexperimenterwillhavetodefineasuitabletestspecimengeometryfortheparticularhoneycombstructureofinterest,consideringcomposition,architecture,cellsize,mechanicalproperties,andspecimenlimitationsandusingthefollowingguidelines.Detailsonspecimengeometrydefinitionaregiveninsection9.2.Four-pointflexure(TestMethodA1)isstronglypreferredandrecommendedfortestingandcharacterizationpurposes.(FromTestMethodC1161section4.5:x201C;Thethree-pointtestconfigurationexposesonlyaverysmallportionofthespecimentothemaximumstress.Therefore,three-pointflexuralstrengthsarelikelytobemuchgreaterthanfour-pointflexuralstrengths.Three-pointflexurehassomeadvantages.Itusessimplertestfixtures,itiseasiertoadapttohightemperatureandfracturetoughnesstesting,anditissometimeshelpfulinWeibullstatisticalstudies.However,four-pointflexureispreferredandrecommendedformostcharacterizationpurposes.x201D;)Thethree-pointflexuretestconfiguration(TestMethodA2)maybeusedforspecimenswhicharenotsuitablefor4-pointtesting,withtheclearunderstandingthat3-pointloadingexposesonlyaverysmallportionofthespecimentothemaximumstress,ascomparedtothemuchlargermaximumstressvolumeina4-pointloadingconfiguration.Therefore,3-pointflexuralstrengthsarelikelytobegreaterthan4-pointflexuralstrengths,basedonstatisticalflawdistributionfactors.TestMethodB(withaspecifiedspecimen......【英文标准名称】:Safetyofmachinery-Humanphysicalperformance-Part1:Termsanddefinitions;GermanversionEN1005-1:2001
【原文标准名称】:机械安全性.人体物理特性.第1部分:术语定义
【标准号】:DINEN1005-1-2002
【标准状态】:作废
【国别】:德国
【发布日期】:2002-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:工作地点;操纵;安全设计;应力;安全;提升;人力;人类;人体;职业安全;劳动力;术语;定义;体力;负荷;保健;人-机;支承;人类工效学;解剖结构;人;机器;生理效应(对人体)
【英文主题词】:Anatomicalconfigurations;Bear;Definition;Definitions;Ergonomics;Handlings;Healthprotection;Humanbody;Labour;Lifting;Loading;Machines;Man;Manpower;Man-machine;Occupationalsafety;People;Physicalstrength;Physiologicaleffects(humanbody);Safety;Safetydesign;Safetyofmachinery;Stress;Terminology;Workingplaces
【摘要】:ThisEuropeanStandardprovidestermsanddefinitionsonconceptsandparametersusedforEN1005Parts2to5.BasicconceptsandgeneralergonomicprinciplesforthedesignofmachineryaredealtwithinEN292Parts1and2andEN614-1.
【中国标准分类号】:J04
【国际标准分类号】:01_040_13;13_110;13_180
【页数】:14P;A4
【正文语种】:德语
