BS 5711-12-1979 甘油取样与试验方法.第12部分:氯化物含量测定
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【英文标准名称】:Methodsofsamplingandtestforglycerol-Determinationofchloridecontent
【原文标准名称】:甘油取样与试验方法.第12部分:氯化物含量测定
【标准号】:BS5711-12-1979
【标准状态】:作废
【国别】:英国
【发布日期】:1979-11-30
【实施或试行日期】:1979-11-30
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:甘油;氯化物;含量测定;化学分析和试验;容量分析;氧化还原滴定
【英文主题词】:Chemicalanalysisandtesting;Chlorides;Determinationofcontent;Glycerol;Redoxtitrations;Volumetricanalysis
【摘要】:Applicabletotechnicalanddynamitegrades.
【中国标准分类号】:G17
【国际标准分类号】:71_080_60
【页数】:2P;A4
【正文语种】:英语
【英文标准名称】:StandardSpecificationforTelecommunicationsandInformationExchangeBetweenRoadsideandVehicleSystems&8212;5GHzBandDedicatedShortRangeCommunications(DSRC)MediumAccessControl(MAC)andPhysicalLayer(PHY)Specifications
【原文标准名称】:路边和运载工具系统间远程通信和信息交换用标准规范.5GHz频带上专用短程通信(DSRC)媒体访问控制(MAC)和物理层(PHY)规范
【标准号】:ASTME2213-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:E17.51
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:信息交流;运载工具;物理层;电信;多路存取计算机;媒体访问控制;通信设备;访问控制
【英文主题词】:(MAC);(PHY);wireless;high-speed;onboardunit(OBU);roadsideunit(RSU)
【摘要】:1.1Thisspecificationdescribesamediumaccesscontrol(MAC)andphysicallayer(PHY)specificationforwirelessconnectivityusingdedicatedshort-rangecommunications(DSRC)services.ThisstandardisbasedonandreferstoIEEEStandards802.11,WirelessLANMediumAccessControlandPhysicalLayerSpecifications,and802.11a,WirelessLANMediumAccessControlandPhysicalLayerSpecificationsHigh-SpeedPhysicalLayerinthe5GHzBand,withpermissionfromtheIEEEsociety.ThisspecificationismeanttobeanextensionofIEEE802.11technologyintothehigh-speedvehicleenvironment.Aspresentedhere,thisspecificationcontainsjustenoughinformationtoexplainthedifferencebetweenIEEE802.11andIEEE802.11aoperatingparametersrequiredtoimplementamostlyhigh-speeddatatransferserviceinthe5.9-GHzIntelligentTransportationSystemsRadioService(ITS-RS)Band.PotentialoperationswithintheUnlicensedNationalInformationInfrastructure(UNII)Bandarealsoaddressed,asappropriate.1.2Purpose8212Thepurposeofthisspecificationistoprovidewirelesscommunicationsovershortdistancesbetweeninformationsourcesandtransactionsstationsontheroadsideandmobileradiounits,betweenmobileunits,andbetweenportableunitsandmobileunits.Thecommunicationsgenerallyoccuroverline-of-sightdistancesoflessthan1000mbetweenroadsideunitsandmostlyhighspeed,butoccasionallystoppedandslowmoving,vehiclesorbetweenhigh-speedvehicles.Thisspecificationalsooffersregulatorybodiesameansofstandardizingaccesstothe5.9GHzfrequencybandforthepurposeofinteroperablecommunicationstoandbetweenvehiclesatline-of-sightdistancesontheroadway.1.3Specifically,thisspecificationaccomplishesthefollowing:1.3.1DescribesthefunctionsandservicesrequiredbyaDSRCandIEEE802.11compliantdevicetooperateinahigh-speedmobileenvironment.1.3.2ReferstoIEEE802.11MACprocedures.1.3.3Definesthe5.9GHzDSRCsignalingtechniqueandinterfacefunctionsthatarecontrolledbytheIEEE802.11MAC.1.3.4PermitstheoperationofaDSRCconformantdevicewithinaDSRCcommunicationszonethatmaycoexistwithmultipleoverlappingDSRCcommunicationzones.1.3.5DescribestherequirementsandprocedurestoprovideprivacyofuserinformationbeingtransferredoverthewirelessmediumandauthenticationoftheDSRCorIEEE802.11conformantdevices.
【中国标准分类号】:M11
【国际标准分类号】:35_100_10;43_040_10
【页数】:26P.;A4
【正文语种】:
基本信息
标准名称: | 高铝质耐火泥 |
中标分类: |
建材 >>
耐火材料 >>
不定型耐火材料 |
替代情况: | 原标准号GB 2994-82;被GB 2994-1994代替 |
发布日期: | |
实施日期: | 1994-01-01 |
首发日期: | |
作废日期: | |
出版日期: | |
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所属分类: 建材 耐火材料 不定型耐火材料