ISO 13291-1997 硫化锌精矿锌含量的测定溶解淬取法和EDTA滴定法
时间:2024-05-18 20:20:11 来源: 标准资料网 作者：标准资料网 阅读：9048
【英文标准名称】:Zincsulfideconcentrates-Determinationofzinccontent-SolventextractionandEDTAtitrimetricmethod
【原文标准名称】:硫化锌精矿锌含量的测定溶解淬取法和EDTA滴定法
【标准号】:ISO13291-1997
【标准状态】:作废
【国别】:国际
【发布日期】:1997-11
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC183
【标准类型】:()
【标准水平】:()
【中文主题词】:锌矿石;含量测定;锌硫化物;锌含量;化学分析和试验;滴定法
【英文主题词】:Chemicalanalysisandtesting;Determinationofcontent;Titrimetry;Zinccontent;Zincores;Zincsulfide
【摘要】:ThisInternationalStandardspecifiesasolventextraction/titrimetricmethodforthedeterminationofthezinccontentofzincsulfideconcentrates.Themethodisapplicabletozincsulfideconcentrateswithzinccontentintherangefrom11%(m/m)to62%(m/m).
【中国标准分类号】:G12
【国际标准分类号】:73_060_99
【页数】:18P;A4
【正文语种】:英语
【英文标准名称】:Methodsofmeasuringandexpressingtheperformanceoftelevisionreceivers.Electricalandacousticmeasurementsataudio-frequencies
【原文标准名称】:电视接收机性能的测定及表示方法.第2部分:音频电气和声学测量
【标准号】:BS3549Pt.2-1981
【标准状态】:作废
【国别】:英国
【发布日期】:1981-07-31
【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】:灵敏度;频率响应;性能试验;音频;乱真信号;声信号;频率测量;电视接收机;信号失真
【英文主题词】:signaldistortion;acousticsignals;audiofrequencies;sensitivity;frequencymeasurement;televisionreceivers;noise(spurioussignals);performancetesting;frequencyresponse
【摘要】:
【中国标准分类号】:M74
【国际标准分类号】:33_160_20
【页数】:32P;A4
【正文语种】:英语
【英文标准名称】:Informationtechnology-Telecommunicationsandinformationexchangebetweensystems-PrivateIntegratedServiceNetwork-ArchitectureandscenariosforPrivateIntegratedServicesNetworking
【原文标准名称】:信息技术系统间远程通信和信息交换专用综合业务网专用综合业务联网的体系结构和概况
【标准号】:ISO/IECTR14475-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-07
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:数据链层;数据处理;私人网络;专业网;系统建筑学;综合服务数字网络;专业网络;综合业务数字网;定义;定义;电信;信息技术;信息交换
【英文主题词】:Datalinklayers;Dataprocessing;Definition;Definitions;Informationinterchange;Informationtechnology;Integratedservicesdigitalnetwork;ISDN;Privatenetworks;Systemarchitecture;Telecommunications
【摘要】:APrivateIntegratedServiceNetwork(PISN)isanetworkcomprisingeitheronePINXormorethanonePINXinterconnectedbyInter-PINXconnections.ThisTechnicalReportisconcernedwithinter-PINXconnections(IPC)thatareprovidedbyInterveningNetworks(IVN),andthewayinwhichthesearehandledbyPINXstoprovideaplatformforinter-PINXcommunication.DifferenttypesofIVNscanbeusedtoprovideIPCs,inaccordancewiththescenariosindicatedinISO/IEC11579-1.TheseareOverlayScenariosinthattheyenabletheservicesofthePISNtooperatetransparentlyacrossanIVN.ConnectedPINXsneedtoco-ordinatetheiruseofIVNs,andappropriatestandardisationisneededtoallownetworkstobecreatedemployingPINXsandIVNsfrommultiplevendors.Thefollowingpointsneedtobeconsidered:—IngeneralbutdependingonthetypeofIVN,proceduresandsignallingprotocolsbetweenthePINXsareneededfortheestablishment,maintenanceandreleaseofIPCs.Appropriatestandardisationoftheseproceduresandsignallingprotocolsisnecessary.—AttheQreferencepoint(aconceptualpointwithinaPINX)channelsandPISNcallcontrolsignalling(QSIG)aredefinedindependentlyofthetypeofIVN.However,attheCreferencepoint(wherethePINXisconnectedtotheIVN),therepresentationofthechannelsandofsignallingisdependentonthetypeofIVN,andonhowthePINXsusetheIPCs.AppropriatestandardisationoftheseaspectsattheCreferencepointisnecessary.—IngeneraltherelationshipbetweenachannelattheQreferencepointanditsrepresentationattheCreferencepointisnotstatic,andproceduresandsignallingbetweenthePINXsareneededfortheco-ordinationoftheserelationships.Appropriatestandardisationoftheseproceduresandsignallingisnecessary.—Appropriatemechanismsneedtobestandardisedforconveyinginter-PINXsignallingthroughtheIVN.ThesewilldependonthecharacteristicsoftheIPCused.TheaimofthisTechnicalReportistoidentify:1.InadditiontoPISNcallcontrolsignalling(QSIG),whatneedstobestandardised,inordertobeabletointer-connectPINXs;2.Generaltechniques,procedures,protocolsetc.,thatapplytoofall(oratleastverymany)typesofIVNs.
【中国标准分类号】:M11
【国际标准分类号】:33_040_35
【页数】:30P;A4
【正文语种】:英语