ASTM D6559-2000a(2005) 测定碳阳极和阴极块的热重(TGA)气体反应性的标准试验方法
时间:2024-05-16 15:11:44 来源: 标准资料网 作者：标准资料网 阅读：9034
【英文标准名称】:StandardTestMethodforDeterminationofThermogravimetric(TGA)AirReactivityofBakedCarbonAnodesandCathodeBlocks
【原文标准名称】:测定碳阳极和阴极块的热重(TGA)气体反应性的标准试验方法
【标准号】:ASTMD6559-2000a(2005)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D02.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:测定;电极;试验;空气;活性;阳极;碳;热重分析法;阴极;煤;块材;电化学
【英文主题词】:airreactivity;anode;cathodeblock;dusting
【摘要】:Theairreactivityratesareusedtoquantifythetendencyofacarbonartifacttoreactwithair.Carbonconsumedbythisunwantedsidereactionisunavailablefortheprimaryreactionsofreducingaluminatotheprimarymetal.Airreactivitydustingrateisusedbysomecompaniestoquantifythetendencyofthecokeaggregateorbindercokeofacarbonartifacttoselectivelyreactwiththesegases.Preferentialattackofthebindercokeorcokeaggregateofacarbonartifactbythesegasescausessomecarbontofalloffordust,makingthecarbonunavailablefortheprimaryreactionofreducingaluminaand,moreimportantly,reducingtheefficiencyofthealuminumreductioncell.Comparisonofairreactivityanddustingratesisusefulinselectingrawmaterialsforthemanufactureofcommercialanodesforspecificsmeltingtechnologiesinthealuminumreductionindustry.Airreactivityratesareusedforevaluatingeffectivenessandbeneficiationprocessesorforresearchpurposes.1.1Thistestmethodcoversthethermogravimetric(TGA)determinationofairreactivityanddustingofshapedcarbonanodesandcathodeblocksusedinthealuminumreductionindustry.Theapparatusselectioncoversasignificantvarietyoftypeswithvariousthermalconditions,samplesizecapability,materialsofconstruction,andproceduresfordeterminingthemasslossandsubsequentrateofreaction.Thistestmethodstandardizesthevariablesofsampledimensions,reactiontemperature,gasvelocityovertheexposedsurfaces,andreactiontimesuchthatresultsobtainedondifferentapparatusesarecorrelatable.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:77_020
【页数】:5P.;A4
【正文语种】:
【英文标准名称】:Roadverticalsigns.Variablemessagetrafficsigns.Part1:Productstandard
【原文标准名称】:道路垂直标志.可变信息交通标志.产品标准
【标准号】:BSEN12966-1-2005+A1-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2005-05-06
【实施或试行日期】:2005-05-06
【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】:CE标记;转换时间;颜色;合格;定义(术语);设计;尺寸规格;固定件;图形显示字符;图形符号;公路交通信号;夹持装置;清晰度;照明系统;负荷;亮度;亮度系数;作标记;标记;数学计算;性能;特性;质量要求;分辨;反射的;反光;道路安全;路标;道路运输;信号系统;规范(验收);固定的;测试;公差(测量);交通信号;交通标志;变量;信息可变标志;垂直;明显的
【英文主题词】:CEmarking;Change-overtimes;Colour;Conformity;Definitions;Design;Dimensions;Fixings;Graphiccharacters;Graphicsymbols;Highwaytrafficsignal;Holdings;Legibility;Lightingsystems;Loading;Luminance;Luminancefactor;Marking;Marks;Mathematicalcalculations;Performance;Properties;Qualityrequirements;Recognition;Reflective;Retroreflecting;Roadsafety;Roadsigns;Roadtransport;Signalsystems;Specification(approval);Stationary;Testing;Tolerances(measurement);Trafficsignals;Trafficsigns;Variable;Variablemessagesigns;Vertical;Visibleness
【摘要】:ThisdocumentspecifiesrequirementsandtestmethodsfornewVariableMessageSigns(VMS).VMScomprisetwotypes,continuousanddiscontinuoussigns:-continuoussignsarethosethataresimilartofixedsigns,theonlydifferencebeingthatbysomeelectro-mechanicalmeanstheycanshowvariousmessages.NOTE1Forexamplerotatingprismsigns,rollerblinds.-discontinuoussignscreatemessagesusingindividualelementsthatcanbeinoneoftwostates(ormore)andcantherebycreatevariousmessagesonthesamesignface.NOTE2Forexamplefibreopticsigns,LEDsigns.ThisdocumentcoverstheperformancerequirementsforVariableMessageSignsusedfortheinstructionandguidanceofroadusersonpublicandprivateland,includingtunnels.Inthisdocumentanumberofdifferentperformancerequirements(visualperformance,EMC,environmentalperformance,etc)arecovered,aswellasdurability.TheEMC,safetyandenvironmentalrequirementsforbothtypesofVMSareincludedinthisdocumenttogetherwiththevisualperformanceforthediscontinuoustypesVMS.ThevisualperformanceforcontinuoussignsandexternallyilluminateddiscontinuoussignswhichareexternallyilluminatediscoveredbyEN12899-1.Thisdocumentdefinesperformancelimitsandarangeofperformanceclassesforbothsignassemblieswithoutverticalsupportandassembliescompletewithverticalsupport.Notcoveredbythisdocumentare:a)signgantries,cantileversandfoundations;b)signalheads;c)sizesandshapesofVMSmessages;d)controlunitsandmonitoringunitsunlessinsidethetestmodule;e)signluminancecontrol.Thecontroloftheluminanceofluminoussignswithrespecttotheambientlightisnotcoveredbythisstandard.
【中国标准分类号】:Q85
【国际标准分类号】:93_080_30
【页数】:80P.;A4
【正文语种】:英语
【英文标准名称】:Householdandsimilarelectricalappliances-Safety-Part2-53:Particularrequirementsforsaunaheatingappliancesandinfraredcabins(IEC60335-2-53:2011);GermanversionEN60335-2-53:2011
【原文标准名称】:家用和类似用途电器.安全性.第2-53部分:桑拿浴加热电器和红外线舱的详细要求(IEC60335-2-53-2011).德文版本EN60335-2-53-2011
【标准号】:DINEN60335-2-53-2012
【标准状态】:现行
【国别】:德国
【发布日期】:2012-06
【实施或试行日期】:2012-06-01
【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】:小室;定义(术语);家用的;电气器具;电热器;家用电器;电气设备;电气工程;家用电器具;电气安全性;发射极;防火安全性;加热器;加热;家用设备;家用;红外线;红外光;作标记;危险防护;防电击;工作电压;安全性;安全性要求;蒸汽浴加热设备;蒸汽浴室;试验
【英文主题词】:Cabins;Definitions;Domestic;Electricappliances;Electricheaters;Electrichouseholdappliance;Electricalappliances;Electricalengineering;Electricalhouseholdappliances;Electricalsafety;Emitters;Firesafety;Heaters;Heating;Householdequipment;Householduse;Infra-red;Infraredlight;Inscription;Protectionagainstdanger;Protectionagainstelectricshocks;Ratedvoltages;Safety;Safetyrequirements;Saunaheatingdevice;Saunas;Testing
【摘要】:
【中国标准分类号】:Y63
【国际标准分类号】:97_100_10
【页数】:35P;A4
【正文语种】:德语