MIL-STD-498 (NOTICE 1)
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来源:标准资料网
MIL-STD-498 (NOTICE 1), MILITARY STANDARD: SOFTWARE DEVELOPMENT AND DOCUMENTATION (27 MAY 1998) [S/S BY IEEE/EIA 12207.0, IEEE/EIA 12207.1 AND IEEE/EIA 12207.2]., MIL-STD-498, dated 5 December 1994, is hereby canceled. Informationregarding software development and documentation is now contained in the Institute ofElectrical and Electronics Engineers (IEEE)/Electronics Industries Association (EIA)standard, IEEE/EIA 12207, "Information technology-Software life cycle processes".IEEE/EIA 12207 is packaged in three parts. The three parts are: IEEE/EIA 12207.0,"Standard for Information Technology-Software life cycle processes鈥? IEEE/EIA12207.1, "Guide for ISO/IEC 12207, Standard for Information Technology-Software lifecycle processes-Life cycle data"; and IEEE/EIA 12207.2, "Guide for ISO/IEC 12207,Standard for Information Technology-Software life cycle processes-Implementationconsiderations."
【英文标准名称】:Informationtechnology—Datainterchangeon12,7mm,384-trackmagnetictapecartridges—Ultrium-1format
【原文标准名称】:信息技术.12.7mm、384-磁轨磁带卡带上的数据交换.Ultrium-1格式
【标准号】:ANSIISO/IEC22050-2002(R2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2002-10-01
【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】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiesthephysicalandmagneticcharacteristicsofmagnetictapecartridges,usingmagnetictape12,65mmwidesoastoprovidephysicalinterchangeofsuchcartridgesbetweendrives.Italsospecifiesthequalityoftherecordedsignals,therecordingmethodandtherecordedformat,therebyallowingdatainterchangebetweendrivesbymeansofsuchcartridges.TheformatsupportsvariablelengthLogicalRecords,highspeedsearch,andtheuseofaregisteredalgorithmfordatacompression.ThisInternationalStandardspecifiesfourtypesofcartridgesdependingonthelengthoftapecontainedinthecase.ThesefourtypesarereferredtoasTypeA,TypeB,TypeCandTypeD;theirnominalcapacityis100Gbytes,50Gbytes,30Gbytesand10Gbytes,respectively.NOTE-OneGbytecontains1000000000bytes.Informationinterchangebetweensystemsalsorequires,ataminimum,agreementbetweentheinterchangepartiesupontheinterchangecode(s)andthespecificationofthestructureandlabelingoftheinformationontheinterchangedcartridge.ThisInternationalStandardshallbeusedonlyinconjunctionwithISO/IEC22091.Togetherwithastandardforvolumeandfilestructure,e.g.StandardISO1001,thisdocumentprovidesforfulldatainterchangebetweendataprocessingsystems.
【中国标准分类号】:L64
【国际标准分类号】:35_220_23
【页数】:140P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforManganeseinGasolineByAtomicAbsorptionSpectroscopy
【原文标准名称】:用原子吸收分光光度法测定汽油中锰含量的标准试验方法
【标准号】:ASTMD3831-2001(2006)
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D02.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:石油产品;含量测定;机动车燃料;试验
【英文主题词】:AAS;atomicabsorptionspectroscopy;gasoline;manganese;methylcyclopentadienylmanganesetricarbonyl;MMT
【摘要】:Certainorgano-manganesecompoundsactasantiknockagentswhenaddedtogasoline.Thistestmethodprovidesameansfordeterminingtheconcentrationofsuchamaterialinagasolinesample.1.1Thistestmethodcoversthedeterminationofthetotalmanganesecontent,presentasmethylcyclopentadienylmanganesetricarbonyl(MMT),ofgasolinewithintheconcentrationrangefrom0.25to40mg/Lofmanganese.1.2Thistestmethodisapplicabletoreformulatedgasolinecontainingupto12%volumemethyltertiarybutyletherorupto10%volumeethanol.Thistestmethodmaynotbeapplicabletohighlycrackedmaterialscontaininggreaterthan18volume%olefinsasdeterminedbyTestMethodD1319(nondepentanized).1.3ThistestmethodhasbeendevelopedandtestedspecificallyforthedeterminationofMMTingasolineovertherecommendedconcentrationrange.Applicationofthemethodtootherconcentrationranges,tothedeterminationofMMTinothermaterials,ortothedeterminationofothermanganesecompoundsingasolinehavenotbeentested1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thepreferredconcentrationunitsaremg/Lmanganese.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificwarningstatements,seeSections5and6.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:4P.;A4
【正文语种】:
