标准资料网-标准资料免费资源平台

【英文标准名称】:Project25-CircuitDataSpecification-NewTechnologyStandardsProject-DigitalRadioTechnicalStandards
【原文标准名称】:项目25.电路数据规范.新技术标准项目.数字无线电技术标准
【标准号】:ANSI/TIA-102.BAEC-2000
【标准状态】:作废
【国别】:美国
【发布日期】:2000
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:规范;电信;无线电工程;数字工程;数据通信
【英文主题词】:Circuits;Data;Datacommunication;Digital;Digitalengineering;Radio;Radioengineering;Specification;Technology;Telecommunications;Terrestrial;TETRA
【摘要】:Servestodefinethedetailedinterfaces,protocols,andproceduresinvolvedininterfacingwithadata-capableProject25standardradiounitviathestandardmobiledataperipheralinterface(A),and(optionally)aProject25standardFNE(FixedNetworkEquipment)dataend-systeminterface(Ed).ToobtainanelectroniccopycontactValerieKaminatGlobalEngineeringat1-800-854-7179.
【中国标准分类号】:M36
【国际标准分类号】:33_070_10
【页数】:
【正文语种】:英语


【英文标准名称】:StandardTestMethodforSeparationofAsphaltintoFourFractions
【原文标准名称】:沥青分离为四种馏分的标准试验方法
【标准号】:ASTMD4124-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D04.47
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:aromatics;asphaltenes;napthene;petrolenes(maltenes);polararomatics;saturates;Asphaltenes;Asphalts;Compositionanalysis--pavingmaterials;Insolublemattercontent;Lubricatingoils;Naphthaandnaphthaderivatives;nC7-asphaltenes;Pe
【摘要】:Thistestmethodseparatesasphaltsintofourwell-definedfractions.Analysisofthesefractionscanbeusedtoevaluateasphaltcomposition(1,2).Forexample,onecancomparetheratiosofthefractionswithotherasphaltsystemstoevaluateprocessingandagingparametersthatrelatetoperformancepropertiesoftheasphalt.1.1Thistestmethodcoverstheseparationoffourdefinedfractionsfrompetroleumasphalts.Thefourfractionsaredefinedassaturates,naphthenearomatics,polararomatics,andiso-octaneinsolubleasphaltenes.Thismethodcanalsobeusedtoisolatesaturates,naphthenearomatics,andpolararomaticsfromdistillateproductssuchasvacuumgasoils,lubricatingoils,andcyclestocks.Thesedistillateproductsusuallydonotcontainasphaltenes.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection8.1.4Sinceaprecisionestimateforthisstandardhasnotbeendeveloped,thistestmethodistobeusedforresearchorinformationalpurposesonly.Therefore,thisstandardshouldnotbeusedforacceptanceorrejectionofamaterialforpurchasingpurposes.
【中国标准分类号】:E43
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】:英语