EN 300061-1-1998 综合业务数字网(ISDN).子寻址(SUB)补充业务.数字用户用1号信令系统(DSS1)协议.第1部分:协议规范
时间:2024-05-08 16:35:56 来源: 标准资料网 作者：标准资料网 阅读：9346
【英文标准名称】:IntegratedServicesDigitalNetwork(ISDN);Subaddressing(SUB)supplementaryservice-DigitalSubscriberSignallingSystemNo.one(DSS1)protocol-Part1:Protocolspecification(EndorsementoftheEnglishversionEN300061-1V1.2.4(1998-06)asGerma
【原文标准名称】:综合业务数字网(ISDN).子寻址(SUB)补充业务.数字用户用1号信令系统(DSS1)协议.第1部分:协议规范
【标准号】:EN300061-1-1998
【标准状态】:现行
【国别】:
【发布日期】:1999-12
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:信号传输;特性;远程通信;数字信号;接口;综合业务数字网络;寻址;记录;服务定义;传输协议;界面;电话交换站;通信;通信网;电信;电信;通信设备;电话技术
【英文主题词】:Addressing;Characteristics;Communicationequipment;Communicationnetworks;Digitalsignals;Interfaces;Interfaces(dataprocessing);ISDN;Records;Servicedefinition;Signaltransmission;Telecommunication;Telecommunications;Telephoneexchanges;Telephonetechnics;Transmissionprotocol
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_080
【页数】:1P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforAnalysisofIsopropylbenzene(Cumene)byGasChromatography(ExternalStandard)
【原文标准名称】:气相色谱法分析异丙基苯的标准试验方法
【标准号】:ASTMD7057-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:D16.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:alpha-methylstyrene;analysisbygaschromatography;benzene;butylbenzene;cumene;cymene;diisopropylbenzene;ethylbenzene;isopropylbenzene;methylcumene;nonaromatichydrocarbons;propylbenzene;toluene
【摘要】:Thistestmethodissuitableforsettingspecificationsonthematerialsreferencedin1.2andforuseasaninternalqualitycontroltoolwhereisopropylbenzeneisproducedorisusedinamanufacturingprocess.Itmayalsobeusedindevelopmentorresearchworkinvolvingisopropylbenzene.Thistestmethodisusefulindeterminingthepurityofisopropylbenzenewithnormalimpuritiespresent.Ifextremelyhighboilingorunusualimpuritiesarepresentintheisopropylbenzene,thistestmethodwouldnotnecessarilydetectthemandthepuritycalculationwouldbeerroneous.Cumenehydroperoxide,ifpresent,willyieldthermaldecompositionproducts,primarilyAPandDMPCasstatedin4.1,thatwilleluteinthechromatogramtherebygivingincorrectresultsunlesstheyareexcludedasindicatedin4.1.Itisalsopossibletogeterroneousresultsfortracealpha-methylstyrenepresentinisopropylbenzeneiftheinlethasbecomeundulycontaminatedwithnon-volatileforeignsubstances.Thenonaromatichydrocarbonscommonlypresentfromtheisopropylbenzenemanufacturingprocess,particularlyanon-zeoliticone,willinterferewiththedeterminationofxylenes(ifpresent).1.1Thistestmethodcoversthedeterminationofthepurityofisopropylbenzene(cumene)bygaschromatography.Calibrationofthegaschromatographysystemisdonebytheexternalstandardcalibrationtechnique.1.2Thistestmethodhasbeenfoundapplicabletothemeasurementofimpuritiessuchasnonaromatichydrocarbons,benzene,toluene,ethylbenzene,phenol,cymenes,t-butylbenzene,n-butylbenzene,n-propylbenzene,alpha-methylstyrene,sec-butylbenzene,anddiisopropylbenzenes,whichareimpuritiesthatcanbefoundinisopropylbenzene.Thelatterimpuritiescanbeanalyzedoverarangeof1mg/kgto500mg/kgbythismethod(seeTable1).ThelimitofdetectionfortheseimpuritiesissummarizedinTable1aswell.1.3Indeterminingtheconformanceofthetestresultsusingthismethodtoapplicablespecifications,resultsshallberoundedoffinaccordancewiththerounding-offmethodofPracticeE29.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection8.
【中国标准分类号】:G16
【国际标准分类号】:71_080_15(AROMATICHYDROCARBONS)
【页数】:4P.;A4
【正文语种】:
【英文标准名称】:Waterquality-Determinationoffreechlorineandtotalchlorine-Part1:TitrimetricmethodusingN,N-diethyl-1,4-phenylenediamine(ISO7393-1:1985);GermanversionENISO7393-1:2000
【原文标准名称】:水质.游离氯和氯总含量测定.第1部分:使用N,N-二乙基-1,4-苯二胺的滴定法
【标准号】:DINENISO7393-1-2000
【标准状态】:现行
【国别】:德国
【发布日期】:2000-04
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;含量测定;水;化学分析和试验;化学反应;氯;测量规程;水质;水质试验;容量分析;质量;滴定法
【英文主题词】:Chemicalanalysisandtesting;Chemicalreactions;Chlorine;Definition;Definitions;Determinationofcontent;Determinationprocedures;Quality;Titrimetry;Volumetricanalysis;Water;Waterquality;Watertest
【摘要】:Thedocumentspecifiesatitrimetricmethodforthedeterminationoffreechlorineandtotalchlorineinwater,especiallyindrinkingwaterorwaterinswimmingpools,intheconcentrationrange0,0004mmol/lto0,07mmol/l.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:16P;A4
【正文语种】:德语