ISO 8613-6-1989 信息处理.文本和办公文件体制.办公文件体系结构和互换格式.第6部分:字符信息结构
时间:2024-05-12 16:15:20 来源: 标准资料网 作者：标准资料网 阅读：9342
【英文标准名称】:Informationprocessing;textandofficesystems;OfficeDocumentArchitecture(ODA)andinterchangeformat;part6:charactercontentarchitectures
【原文标准名称】:信息处理.文本和办公文件体制.办公文件体系结构和互换格式.第6部分:字符信息结构
【标准号】:ISO8613-6-1989
【标准状态】:作废
【国别】:国际
【发布日期】:1989-09
【实施或试行日期】:1989-09-01
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/IEC/JTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:信息交换;办公文献体系结构;办公室通信;正文处理;数据结构;文献工作;数据处理;信息交流;文献;信息处理
【英文主题词】:documentation;textprocessing;oda;datastructures;officecommunication;dataprocessing;informationprocessing;documents;informationinterchange;informationexchange
【摘要】:
【中国标准分类号】:L76;L71
【国际标准分类号】:5474
【页数】:91P;A4
【正文语种】:英语
【英文标准名称】:AnInvestigationofFlammableGasesorVaporswithRespecttoExplosion-ProofElectricalEquipment
【原文标准名称】:一项针对防爆电气设备的易燃气体或蒸气调查
【标准号】:ULTR58-1993
【标准状态】:现行
【国别】:美国
【发布日期】:1993-07-23
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisisareportoftheinitialinvestigationconductedbyUnderwriters'LaboratoriesInc.toestablishaprocedureforclassifyingadditionalflammablegasesorvaporswithinGroupsA,B,C,andDofClassIhazardouslocationsasdefinedbytheNationalElectricalCode.Thisprocedureprovidesameansofincreasingtheutilityofpresentlyrecognizedexplosion-proofelectricalequipmentwithoutthenecessityofadditionalexpensiveandlaborioustestingofsuchequipment.UsingatestfacilitydesignedandconstructedbyUnderwriter'sLaboratoriesInc.comparativeexperimentaldataonflamepropagationandexplosioneffects,withspecialreferencetoexplosion-proofelectricalequipment,havebeenobtainedforfifteenflammableandnonflammablegasesorvolatilechemicalmaterialsnetpreviouslyclassified.Featuresinvestigatedincludedthemaximumexplosionpressuredevelopedbytheparticulargas-orvapor-airmixtureunderpertinenttestconditions,andthewidthsandclearancesinmetal-to-metaljointsthatwillarrestflamepropagation.Theprimaryexplosionchamber,12inchininternaldiameterwithaninternalvolumeofonecubicfoot,isprovidedwithavariabletestjointassembly,meansforinducinginitialturbulenceinthetestmixturepriortoignition,andanoptional10-footsectionof1-1/2inchsizeconduitforstudiesofexplosionpressurepilingeffects.Toarriveattheproposedclassifications,theflamepropagationandexplosioneffectsofeachgasorvapor,togetherwithitsignitiontemperature,werecomparedwiththecorrespondingcharacteristicsofacetylene(GroupA),hydrogen(GroupB),diethylether(GroupC),andgasoline(GroupD)asdeterminedunderthesametestconditions.TheGroupclassificationofthesefourreferencematerialshaslongbeenestablishedwithinClassIhazardouslocations,andeachofthefourisconsideredrepresentativeoftheothergasesorvaporsclassedintherespectiveGroup.Onthebasisoftheresultsofthisinvestigation,fourteengasesorvaporshavebeenaddedtotheGroupclassificationswithinClassIhazardouslocationsasfollows:ClassI,GroupB-Butadiene,ethyleneoxide,andpropyleneoxide.ClassI,GroupC-Acetaldehyde,isoprene,andunsymmetricaldimethylhydrazine.ClassI,GroupD-Acrylonitrile,ammonia(anhydrous),ethylenedichloride,propylene,styrene,vinylacetate,vinylchloride,andpara-xylene.Carbondisulfide,thefifteenthmaterialinvestigatedwouldnotbeclassifiedinanyofthefourGroupsofClassIhazardouslocations.BecauseofitsIowignitiontemperatureandtheverycloseclearancesbetweensurfacesnecessarytoarrestitsflamepropagation,carbondisulfiderequiressafeguardsbeyondthoserequiredforanyofthepresentGroups.PartIIreportsonaninvestigationconductedbyUnderwritersLaboratoriesInc.toclassifyadditionalgasesorvaporswithinGroupsA,B,C,andDofClassIhazardouslocationsasdefinedbytheNationalElectricalCode,NFPANo.70-1975,ANSIC1-1975.
【中国标准分类号】:K35
【国际标准分类号】:
【页数】:104
【正文语种】:英语
【英文标准名称】:
【原文标准名称】:塑料浴盆盖
【标准号】:JISA5708-1976
【标准状态】:作废
【国别】:日本
【发布日期】:1976-04-01
【实施或试行日期】:1976-04-01
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:浴池;封盖物;塑料
【英文主题词】:
【摘要】:
【中国标准分类号】:Y28;Q81
【国际标准分类号】:
【页数】:
【正文语种】: