BS 6068 Sec.2.30-1987 水质.第2部分:物理、化学和生物化学方法.第30节:用原子吸收光谱测定法测定钙和镁的方法
作者:标准资料网 时间:2024-05-28 23:17:07 浏览:8955
来源:标准资料网
【英文标准名称】:Waterquality.Physical,chemicalandbiochemicalmethods.Methodfordeterminationofcalciumandmagnesiumbyatomicabsorptionspectrometricmethod
【原文标准名称】:水质.第2部分:物理、化学和生物化学方法.第30节:用原子吸收光谱测定法测定钙和镁的方法
【标准号】:BS6068Sec.2.30-1987
【标准状态】:作废
【国别】:英国
【发布日期】:1987-06-30
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:水质试验;饮用水;质量;水;镁;数学计算;试验条件;精密度;钙;火焰光度测定法;化学试剂;原子吸收分光光度测定法;校正
【英文主题词】:water;magnesium;calibration;chemicalreagents;flamephotometry;potablewater;precision;watertesting;testingconditions;quality;calcium;atomicabsorptionspectrophotometry;mathematicalcalculations
【摘要】:
【中国标准分类号】:P40;Z16
【国际标准分类号】:
【页数】:6P;A4
【正文语种】:英语
【英文标准名称】:Windturbines—Part21:Measurementandassessmentofpowerqualitycharacteristicsofgridconnectedwindturbines
【原文标准名称】:风力涡轮机.网格连接风力涡轮机动力质量特性的测量和评估
【标准号】:BSEN61400-21-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2009-01-31
【实施或试行日期】:2009-01-31
【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】:兼容性;可混用性;定义;电力系统;电气工程;发电机;电力网供电;测量技术;电功率测量;评定;规范(验收);涡轮机;风力电站;风力涡轮机
【英文主题词】:Compatibility;Definition;Definitions;Electricpowersystems;Electricalengineering;Generators;Mainssupply;Measuringtechniques;Powermeasurement(electric);Ratings;Specification(approval);Turbines;Windpowerstations;Windturbines
【摘要】:ThispartofIEC61400includes:?definitionandspecificationofthequantitiestobedeterminedforcharacterizingthepowerqualityofagridconnectedwindturbine;?measurementproceduresforquantifyingthecharacteristics;?proceduresforassessingcompliancewithpowerqualityrequirements,includingestimationofthepowerqualityexpectedfromthewindturbinetypewhendeployedataspecificsite,possiblyingroups.Themeasurementproceduresarevalidforsinglewindturbineswithathree-phasegridconnection.Themeasurementproceduresarevalidforanysizeofwindturbine,thoughthispartofIEC61400onlyrequireswindturbinetypesintendedforPCC(PointofCommonCoupling)atMVorHVtobetestedandcharacterizedasspecifiedinthispartofIEC61400.Themeasuredcharacteristicsarevalidforthespecificconfigurationandoperationalmodeoftheassessedwindturbinetypeonly.Otherconfigurations,includingalteredcontrolparametersthatcausethewindturbinetobehavedifferentlywithrespecttopowerquality,requireseparateassessment.Themeasurementproceduresaredesignedtobeasnon-site-specificaspossible,sothatpowerqualitycharacteristicsmeasuredatforexampleatestsitecanbeconsideredvalidalsoatothersites.TheproceduresforassessingcompliancewithpowerqualityrequirementsarevalidforwindturbineswithPCCatMVorHVinpowersystemswithfixedfrequencywithin±1Hz,andsufficientactiveandreactivepowerregulationcapabilities.Inothercases,theprinciplesforassessingcompliancewithpowerqualityrequirementsmaystillbeusedasaguidance.ThispartofIEC61400isfortestingofwindturbines,thoughitcontainsinformationthatmayalsobeusefulfortestingofwindfarms.NOTEThispartofIEC61400usesthefollowingtermsforsystemvoltage:–lowvoltage(LV)referstoUn≤1kV;–mediumvoltage(MV)refersto1kV35kV.
【中国标准分类号】:F11
【国际标准分类号】:27_180
【页数】:62P.;A4
【正文语种】:英语
【英文标准名称】:Softwareengineering-COSMIC:afunctionalsizemeasurementmethod
【原文标准名称】:软件工程.COSMIC:函数长度测量方法
【标准号】:ISO/IEC19761-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-03-15
【实施或试行日期】:2011-03-15
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1/SC7
【标准类型】:()
【标准水平】:()
【中文主题词】:应用软件;通信软件;计算机应用;计算机程序;计算机软件;数据处理;定义(术语);泛函分析;功能性;信息交换;信息技术;测量;测量技术;大小测量
【英文主题词】:Applicationsoftware;Communicationsoftware;Computerapplications;Computerprograms;Computersoftware;Dataprocessing;Definitions;Functionalanalysis;Functionality;Informationinterchange;Informationtechnology;Measurement;Measuringtechniques;Sizemeasurement
【摘要】:ThisInternationalStandardspecifiesthesetofdefinitions,conventionsandactivitiesoftheCOSMICFunctionalSizeMeasurementMethod.Itisapplicabletosoftwarefromthefollowingfunctionaldomains:a)applicationsoftware;EXAMPLEBanking,insurance,accounting,personnel,purchasing,distributionormanufacturing.b)real-timesoftware;EXAMPLESoftwarefortelephoneexchangesandmessageswitching,softwareembeddedindevicestocontrolmachinessuchasdomesticappliances,liftsandcarengines,forprocesscontrolandautomaticdataacquisition,andwithintheoperatingsystemofcomputers.c)hybridsoftheabove.EXAMPLEReal-timereservationsystemsforairlinesorhotels.ThisInternationalStandardhasnotbeendesignedformeasuringthefunctionalsizeofapieceofsoftware,oritsparts,which?ischaracterizedbycomplexmathematicalalgorithmsorotherspecializedandcomplexrules,suchascanbefoundinexpertsystems,simulationsoftware,self-learningsoftwareandweatherforecastingsystems,or?processescontinuousvariablessuchasaudiosoundsorvideoimages,suchascanbefoundincomputergamesoftware,musicalinstrumentsandthelike.
【中国标准分类号】:
【国际标准分类号】:35_080
【页数】:22P.;A4
【正文语种】:英语
