【英文标准名称】:Electricitymeteringequipment(AC)-Generalrequirements,testsandtestconditions-Part11:Meteringequipment
【原文标准名称】:交流电测量设备通用要求、试验和试验条件第11部分:测量设备
【标准号】:IEC62052-11-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC13
【标准类型】:()
【标准水平】:()
【中文主题词】:电子仪器;电度表;供能系统(建筑物);电子的;电气设备;交流电流;定义;试验;规范(验收);电气元件;测量;测量仪器;试验条件;电气工程;能耗测量;电子测量装置;电子装置;电子设备及元件;能量测量;电流表;交流瓦特电度表;测量设备;消费者;电能;计数器;一般条件
【英文主题词】:Adjustments;Alternatingcurrent;Alternatingfields;Alternatingvoltages;Alternating-currentmeters;Ambienttemperature;Audiofrequencies;Batches;Batteries;Bodies;Boundaryrange;Burst;Circuits;Clamps;Clearances;Coldness;Compatibility;Conditions;Connections;Constantfields;Consumers;Contact;Contamination;Continuitytests;Control;Counters;Currentmeters;Cycle;Definitions;Deviations;Directcurrent;Discharge;Disks;Distributingnetworks;Dust;Earth;Earthconductors;Electricenergy;Electrical;Electricalappliances;Electricalcomponents;Electricalengineering;Electricalproperties;Electricitymeter;Electricitysupplymeters;Electromagnetic;Electromagnetism;Electromagnets;Electronic;Electronicequipmentandcomponents;Electronicinstruments;Electronicmeasuringdevices;Electronically-operateddevices;Electrostatics;EMC;Enclosures;Energymeasurement;Energysupplysystems(buildings);Exits;Fire;Firerisks;Frequencies;Generalconditions;Heat;Heating;Hertz;Humidity;Impact;Impulsevoltages;Indications;Influencequantities;Information;Insulations;Interferencerejections;Interruptions;Leakagepaths;Lids;Limits(mathematics);Loadcontrol;Loading;Lowering;Magnetic;Magneticfields;Measurement;Measurementofconsumption;Measuringequipment;Measuringinstruments;Mechanic;Mechanicalproperties;Moisture;Momentum;Operatingconditions;Operation;Operationranges;Performance;Phases;Powerconsumption;Powerfrequency;Precision;Properties;Protection;Radiodisturbances;Ratedfrequencies;Ratedvoltage;Receivers;Relative;Remotecontrolmethods;Ripplecontrolreceivers;Sharpness;Shortcircuits;Signs;Specification(approval);Strengthofmaterials;Stress;Supplyvoltage;Switchgear;Switchingcurrents;Switchingvoltage;Tariftime-switches;Tariff;Tariffcontrol;Temperaturerange;Testing;Testingconditions;Time;Timeswitches;Timingdevices;Tolerances(measurement);Turns;Values;Vibration;Voltagerange;Water;Windows
【摘要】:ThispartofIEC62052coverstypetestsforelectricitymeteringequipmentforindoorandoutdoorapplicationandappliestonewlymanufacturedequipmentdesignedtomeasuretheelectricalenergyon50Hzor60Hznetworks,withavoltageupto600V.Itappliestoelectromechanicalorstaticmetersforindoorandoutdoorapplicationconsistingofameasuringelementandregister(s)enclosedtogetherinametercase.Italsoappliestooperationindicator(s)andtestoutput(s).Ifthemeterhasameasuringelementformorethanonetypeofenergy(multi-energymeters),orwhenotherfunctionalelements,suchasmaximumdemandindicators,electronictariffregisters,timeswitches,ripplecontrolreceivers,datacommunicationinterfaces,etc.areenclosedinthemetercase,thentherelevantstandardsfortheseelementsapply.Itdoesnotapplyto:a)portablemeters;b)datainterfacestotheregisterofthemeter;c)referencemeters.Forrack-mountedmeters,themechanicalpropertiesarenotcoveredinthisstandard.
【中国标准分类号】:N22
【国际标准分类号】:17_220_20
【页数】:94P.;A4
【正文语种】:英语


【英文标准名称】:StandardGuideforCyclicDeactivationofFluidCatalyticCracking(FCC)CatalystswithMetals
【原文标准名称】:含金属的流化裂化催化剂(FCC)的循环钝化的标准指南
【标准号】:ASTMD7206-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D32.04
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:催化剂;催化;周期的;钝化;流化裂化;金属
【英文主题词】:
【摘要】:Thisguidedescribestechniquesofdeactivationthatcanbeusedtocompareaseriesofcrackingcatalystsatequilibriumconditionsortosimulatetheequilibriumconditionsofaspecificcommercialunitandaspecificcatalyst.1.1Thisguidecoversthedeactivationoffluidcatalyticcracking(FCC)catalystinthelaboratoryasaprecursortosmallscaleperformancetesting.FCCcatalystsaredeactivatedinthelaboratoryinordertosimulatetheagingthatoccursduringcontinuoususeinacommercialfluidcatalyticcrackingunit(FCCU).Deactivationforpurposesofthisguideconstituteshydrothermaldeactivationofthecatalystandmetalpoisoningbynickelandvanadium.HydrothermaltreatmentisusedtosimulatethephysicalchangesthatoccurintheFCCcatalystthroughrepeatedregenerationcycles.Hydrothermaltreatment(steaming)destabilizesthefaujasite(zeoliteY),resultinginreducedcrystallinityandsurfacearea.Furtherdecompositionofthecrystallinestructureoccursinthepresenceofvanadium,andtoalesserextentinthepresenceofnickel.Vanadiumisbelievedtoformvanadicacidinahydrothermalenvironmentresultingindestructionofthezeoliticportionofthecatalyst.NickelsprincipleeffectistopoisontheselectivityoftheFCCcatalyst.Hydrogenandcokeproductionisincreasedinthepresenceofnickel,duetothedehydrogenationactivityofthemetal.Vanadiumalsoexhibitssignificantdehydrogenationactivity,thedegreeofwhichcanbeinfluencedbytheoxidationandreductionconditionsprevailingthroughoutthedeactivationprocess.Thesimulationofthemetaleffectsthatonewouldseecommerciallyispartoftheobjectiveofdeactivatingcatalystsinthelaboratory.1.2Thetwobasicapproachestolaboratory-scalesimulationofcommercialequilibriumcatalystsdescribedinthisguideareasfollows:1.2.1CyclicPropyleneSteaming(CPS)Methodinwhichthecatalystisimpregnatedwiththedesiredmetalsviaanincipientwetnessprocedure(Mitchellmethod)followedbyaprescribedsteamdeactivation.1.2.2Crack-onMethodsinwhichfreshcatalystissubjectedtoarepetitivesequenceofcracking(usingafeedwithenhancedmetalsconcentrations),stripping,andregenerationinthepresenceofsteam.Twospecificproceduresarepresentedhere,aprocedurewithalternatingmetaldepositionanddeactivationstepsandamodifiedTwo-Stepprocedure,whichincludesacyclicdeactivationprocesstotargetlowervanadiumdehydrogenationactivity.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G74
【国际标准分类号】:71_040_30
【页数】:5P.;A4
【正文语种】: