ASTM D 4294-2002 利用能量扩散X-射线荧光光度法测定石油产品中硫含量的标准试验方法

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【英文标准名称】:StandardTestMethodforSulfurinPetroleumProductsbyEnergy-DispersiveX-RayFluorescenceSpectroscopy
【原文标准名称】:利用能量扩散X-射线荧光光度法测定石油产品中硫含量的标准试验方法
【标准号】:ASTMD4294-2002
【标准状态】:作废
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【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】:E30
【国际标准分类号】:75_080
【页数】:5P;A4
【正文语种】:英语


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基本信息
标准名称:平面钢领
中标分类: 纺织 >> 纺织机械与器具 >> 纺织机械零部件
替代情况:被FZ/T 92018-2001代替
发布日期:1900-01-01
实施日期:1992-12-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:4页
适用范围

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所属分类: 纺织 纺织机械与器具 纺织机械零部件
【英文标准名称】:Uninterruptiblepowersystems(UPS)-Part2:Electromagneticcompatibility(EMC)requirements
【原文标准名称】:不间断电源系统(UPS).第2部分:电磁兼容性(EMC)要求
【标准号】:IEC62040-2-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-10
【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/SC22B
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;半导体;转换器;电力变换器;电力电子学;使用条件;半导体功率转换器;半导体器件;干扰抑制;电驱动装置;剩余度;元部件;装置;安全;电子设备及元件;电子工程;交流电流;设计;检验;电气安全;EMC;电力系统;电磁兼容性;规范(验收);不间断;不间断供电系统;定义;尺寸选定;电气工程
【英文主题词】:Alternatingcurrent;Antennas;Batteries;Bodies;Bottom;Buyers;Clamps;Classification;Components;Conditions;Conduits;Configuration;Connections;Control;Couverters;Definitions;Design;Dimensioning;Discharge;Distribution;Earthingconnection;Electricconvertors;Electricmains;Electricpowersystems;Electricalcomponents;Electricalengineering;Electricalsafety;Electrically-operateddevices;Electromagneticcompatibility;Electromagnetism;Electronicengineering;Electronicequipmentandcomponents;Electrostatics;EMC;Enclosures;Entrances;Environmentalcondition;Equipment;Exits;Fieldstrength(electric);Frequencyranges;Grids;Impulsevoltages;Influencequantities;Inspection;Installations;Interferencerejections;Interferences;Interferingemissions;Limits(mathematics);Lowfrequencies;Magnetic;Measurement;Measuringcircuit;Measuringequipment;Measuringsites;Noisepower;Operatingconditions;Operatingmode;Operation;Performance;Portablecurrentsupplyequipment;Position;Powerelectronics;Radiation;Radiodisturbances;Radiointerferences;Receivers;Redundancy;Safety;Semiconductordevices;Semiconductorpowerconvertors;Semiconductors;Signals;Specification(approval);Tables;Testing;Uninterruptable;Uninterruptiblepowersystems;Users;Vibration;Voltagedips;Voltagedrops
【摘要】:ThispartofIEC62040appliestoUPSunitsintendedtobeinstalled-asaunitorinUPSsystemscomprisinganumberofinterconnectedUPSandassociatedcontrol/switchgearformingasinglepowersystem;and-inanyoperatoraccessibleareaorinseparatedelectricallocations,connectedtolow-voltagesupplynetworksforeitherindustrialorresidential,commercialandlightindustrialenvironments.ThispartofIEC62040isintendedasaproductstandardallowingtheEMCconformityassessmentofproductsofcategoriesC1,C2andC3asdefinedinthispartofIEC62040,beforeplacingthemonthemarket.Equipmentofcategory4istreatedasafixedinstallation.Checkingisgenerallydoneafterinstallationinitsfinalplaceofuse.Sometimespartialcheckingmaybedonebefore.SeeAnnexETherequirementshavebeenselectedsoastoensureanadequatelevelofelectromagneticcompatibility(EMC)forUPSatpublicandindustriallocations.Theselevelscannot,however,coverextremecases,whichmayoccurinanylocationbutwithextremelylowprobabilityofoccurrence.ThispartofIEC62040takesintoaccountthedifferingtestconditionsnecessarytoencompasstherangeofphysicalsizesandpowerratingsofUPS.AUPSunitorsystemshallmeettherelevantrequirementsofthispartofIEC62040asastand-aloneproduct.EMCphenomenaproducedbyanycustomers'loadconnectedtotheoutputoftheUPSequipmentshallnotbetakenintoaccount.Specialinstallationenvironmentsarenotcovered,norarefaultconditionsofUPStakenintoaccount.ThispartofIEC62040doesnotcoverd.c.suppliedelectronicballastorUPSbasedonrotatingmachines.ThispartofIEC62040states:-EMCrequirements;-testmethods;-minimumperformancelevels.
【中国标准分类号】:K85
【国际标准分类号】:29_160_40;33_100_01
【页数】:86P.;A4
【正文语种】:英语