BS EN 61754-4-1997 光纤连接器接口.SC系列连接器系列

上一篇: BS 7655-0-1997 电缆用绝缘和铠装材料规范.一般介绍
下一篇: BS EN 61434-1997 含碱性或其他非酸性电解质的二次充电电池和电池组.碱性二次充电电池和电池组标准电流命名指南

【英文标准名称】:StandardTestMethodforArrheniusKineticConstantsforThermallyUnstableMaterials
【原文标准名称】:热不稳定材料的阿仑尼乌斯动态恒量的标准试验方法
【标准号】:ASTME698-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:E27.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:恒定的;动力学;热试验;统计学;试验;材料
【英文主题词】:Arrheniuskineticparameters;differentialscanningcalorimetry;hazardpotential;kinetics;thermalanalysis;thermalhazad;thermalstability
【摘要】:TheArrheniusparameterscombinedwiththegeneralratelawandthereactionenthalpycanbeusedforthedeterminationofthermalexplosionhazards(1).31.1ThismethodcoversthedeterminationoftheoverallkineticparametersforexothermicreactionsusingtheFlynn/Wall/Ozawamethodanddifferentialscanningcalorimetry.1.2ThistechniqueisapplicabletoreactionswhosebehaviorcanbedescribedbytheArrheniusequationandthegeneralratelaw.1.3LimitationsTherearecaseswherethistechniqueisnotapplicable.Limitationsmaybeindicatedbycurvesdepartingfromastraightline(see)ortheisothermalagingtestnotcloselyagreeingwiththeresultspredictedbythecalculatedkineticvalues.Inparticular,thismethodisnotapplicabletoreactionsthatarepartiallyinhibited.Thetechniquemaynotworkwithreactionsthatincludesimultaneousorconsecutivereactionsteps.Thismethodmaynotapplytomaterialsthatundergophasetransitionsifthereactionrateissignificantatthetransitiontemperature.1.4SIunitsarethestandard.Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:19_040
【页数】:8P.;A4
【正文语种】:


【英文标准名称】:Electricitymeteringequipment(a.c.)-Particularrequirements-Staticmetersforreactiveenergy(classes2and3)
【原文标准名称】:电量计量设备(交流电).特殊要求.静态无功千瓦时计(2和3级)
【标准号】:BSEN62053-23-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-07-03
【实施或试行日期】:2003-07-03
【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】:电气工程;电子测量装置;规范(验收);计数器;交流瓦特电度表;交流电流;电流表;能量测量;电度表;测量仪器;静态的;电能;乏时计
【英文主题词】:Alternatingcurrent;Alternating-currentmeters;Counters;Currentmeters;Electricenergy;Electricalengineering;Electricitymeter;Electricitysupplymeters;Electronicmeasuringdevices;Energymeasurement;Measuringinstruments;Specification(approval);Static;Varmeters
【摘要】:ThispartofIEC62053appliesonlytonewlymanufacturedstaticvar-hourmetersofaccuracyclasses2and3,forthemeasurementofalternatingcurrentelectricalreactiveenergyin50Hzor60Hznetworksanditappliestotheirtypetestsonly.Forpracticalreasons,thisstandardisbasedonaconventionaldefinitionofreactiveenergyforsinusoidalcurrentsandvoltagescontainingthefundamentalfrequencyonly.Itappliesonlytostaticvar-hourmetersforindoorandoutdoorapplicationconsistingofameasuringelementandregister(s)enclosedtogetherinametercase.Italsoappliestooperationindicator(s)andtestoutput(s).Ifthemeterhasameasuringelementformorethanonetypeofenergy(multi-energymeters),orwhenotherfunctionalelements,likemaximumdemandindicators,electronictariffregisters,timeswitches,ripplecontrolreceivers,datacommunicationinterfaces,etc.areenclosedinthemetercase,thentherelevantstandardsfortheseelementsalsoapply.Itdoesnotapplyto:-var-hourmeterswherethevoltageacrosstheconnectionterminalsexceeds600V(line-to-linevoltageformetersforpolyphasesystems);-portablemeters;-datainterfacestotheregisterofthemeter;-referencemeters.ThedependabilityaspectiscoveredbythedocumentsoftheIEC62059series.
【中国标准分类号】:N21
【国际标准分类号】:91_140_50
【页数】:22P.;A4
【正文语种】:英语