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【英文标准名称】:Electricitymetering-Dataexchangeformeterreading,tariffandloadcontrol-Part62:Interfaceclasses
【原文标准名称】:电量测量计数器读数、电费和负载控制的数据交换.第62部分:接口分级
【标准号】:IEC62056-62-2002
【标准状态】:作废
【国别】:国际
【发布日期】:2002-02
【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】:测量仪器;测量;规范(验收);数据传送;定义;PSTN;税控制;数据交换;会计;电连接接口;仪表读数;测量中继器;电度表;数据网络;界面;电气工程;性能;电流;负载控制;能量测量;目标;远距计数器;电能
【英文主题词】:Accountings;Classes;Companionspecificationforenergymetering;COSEM;Counters;Currents;Datacommunication;Dataelements;Dataexchange;Dataformats;Datalinksystem;Datamodels;Datanetwork;Datatransfer;Datatransmission;Datatypes;Definition;Definitions;Descriptions;Distributionofelectricity;Electricenergy;Electricalengineering;Electricitymeter;Electricitysupplymeters;Electricitytransmission;ElectronicDataInterchanges;Energymeasurement;Englishlanguage;Interfaces;Interfaces(dataprocessing);Interfacesofelectricalconnections;Loadcontrol;Measurement;Measuringinstruments;Meterreading;Meteringrelayrepeater;OBIS;Object;Objectidentificationsystem;Object-oriented;Performance;PSTN;PublicSwitchedTelephoneNetwork;Specification(approval);Structure;Tariffcontrol;Tariffmeteringdevices;Telecounters
【摘要】:本部分规定了从通信接口视角观看的仪表模型。本部分采用面向对象的方法定义了多种通用组合块,以接口类的形式构造了简单功能到非常复杂功能的仪表模型。
【中国标准分类号】:N22
【国际标准分类号】:33_040_50;91_140_50;17_220_20
【页数】:74P.;A4
【正文语种】:汉语


【英文标准名称】:StandardTestMethodsforCyanidesinWater-AutomatedMethodsforTotalCyanide,WeakAcidDissociableCyanide,andThiocyanate
【原文标准名称】:水中氰化物测定的标准试验方法.总氰化物、弱酸分解氰化物和硫氰化物自动测定法
【标准号】:ASTMD4374-2006
【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】:D19.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:氰化物;含量测定;试验;水
【英文主题词】:automatedmethods;cyanide;thiocyanate;wastewater;weakaciddissociable
【摘要】:Cyanidesareknowntobetoxictoman,butmoresotofishandotheraquaticlife.Thecomplexityofthechemistryofcyanideshasledtothecoexistenceofseveralcyanidespeciesintheenvironment.Thepresenceofcyanidesinindustrial,domestic,andsurfacewateriscauseforconcern.Severalregulationsandstandardsrequirecontinuousmonitoringofcyanidesindifferenttypesofwaterandwastes.Theautomatedtestmethodspresentedofferusefultoolsforsuchmonitoring.(SeealsoPracticeD4193.)1.1Thesetestmethodscoverthedeterminationofdifferentspeciesofcyanidesandthiocyanateinwaterandwastewater,namelyweakaciddissociablecyanide,totalcyanide,andthiocyanate().1.1.1TotalCyanideThistestmethoddeterminesalltheweakaciddissociablecyanidesandthestrongmetal-cyano-complexes,suchasferrocyanide[Fe(CN)6]4,ferricyanide[Fe(CN)6]3,hexacyanocolbaltate[Co(CN)6]3,andthoseofgoldandplatinum.1.1.2WeakAcidDissociableCyanideThistestmethodbasicallydeterminesfreecyanides,asCNandHCN,andweakmetal-cyano-complexessuchas[Cd(CN)4]2and[Mn(CN)6]3.Ironcomplexesarenotincluded.1.1.3Strongcyanidecomplexes,likethoseofiron,cobalt,etc.,canbedeterminedbydifference,thatis,cyanidecomplexes=totalcyanidesweakaciddissociablecyanides.1.1.4ThiocyanateThistestmethoddeterminesthethiocyanateasthedifferencebetweenanothermeasurementthatincludestotalcyanideplusthiocyanateandthevalueoftotalcyanide,thatis,thiocyanate=totalcyanideplusthiocyanatetotalcyanide.1.2Cyanatesandcyanogenhalidesarenotdetected.CyanogenchloridehydrolyzestocyanateatthepHofsamplepreservation(12).1.3Mostoftheorgano-cyano-complexesarenotmeasured,withtheexceptionoftheweakcyanohydrins.1.4Thesetestmethodsapplytodifferenttypesofwater,wastewater(rawsewage,sludge,andeffluent),sludge,someindustrialwaste,andsediments.Samplematrixesshouldbeevaluatedbytheuser.Thereportedprecisionandbias(seeSection)maynotapplytoallsamples.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautionarystatements,seeSection9.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:15P.;A4
【正文语种】: