NF L52-150-1986 飞机设备.铝合金导体电缆.特性
作者:标准资料网 时间:2024-04-29 19:47:26 浏览:9840
来源:标准资料网
【英文标准名称】:Aircraftequipment.Electriccableswithaluminiumalloyconductor.Characteristics.
【原文标准名称】:飞机设备.铝合金导体电缆.特性
【标准号】:NFL52-150-1986
【标准状态】:现行
【国别】:法国
【发布日期】:1986-10-01
【实施或试行日期】:1986-10-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:V25
【国际标准分类号】:49_060;29_060_20
【页数】:3P;A4
【正文语种】:其他
【英文标准名称】:Plastics-Determinationofthebrittlenesstemperaturebyimpact
【原文标准名称】:塑料.用冲击法测定脆性温度
【标准号】:BSISO974-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-05-15
【实施或试行日期】:2000-05-15
【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】:试验设备;尺寸;环境温度;试样制备;脆性;统计检验;材料的机械性能;塑料;损坏;塑料和橡胶技术;公差(测量);冲击试验;温度
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiesamethodforthedeterminationofthetemperatureatwhichplasticsthatarenotrigidatnormalambienttemperatureexhibitbrittlefailureunderspecifiedimpactconditions.Asupplementarytechniqueusingnotchedspecimensdevelopsbrittlenessvaluesatamuchhighertemperaturethanareobservedforunnotchedspecimensofthesameplasticmaterial.Themethodutilizesastatisticaltechniquetoquantifythebrittlenessfailuretemperature.Provisionsaremadeforthetestingofsufficientspecimenstopermitthecalculationofthebrittlenesstemperatureonastatisticalbasis.Statisticaltechniqueshavebeendevelopedtoquantifythebrittlenesstemperatureasisdefinedin3.1.Themethodestablishesthetemperatureatwhichthereisa50%chanceoffailureineitherunnotchedornotchedspecimens.Thismethodhasbeenfoundusefulforspecificationpurposes,althoughitdoesnotnecessarilymeasurethelowesttemperatureatwhichthematerialmaybeused.Inthemeasurementofthebrittlenesstemperature,theprecisionofthemeasurementshouldpreferablybe±5℃attheworstwhenestablishingvaluesusedinmaterialspecifications.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:16P;A4
【正文语种】:英语
【英文标准名称】:Informationtechnology-Specificationforadatadescriptivefileforinformationinterchange
【原文标准名称】:信息技术.信息交换用数据描述文件规范
【标准号】:BSISO/IEC8211-1994
【标准状态】:现行
【国别】:英国
【发布日期】:1995-06-15
【实施或试行日期】:1995-06-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:开放系统互连;数据组织;文件;文档;信息交流;数据传送;数据结构;数据处理;数据布置;代码字符集;数据传输;数据库;数据集
【英文主题词】:Dataprocessing;Datarecords;Datatransmission;Files;Informationexchange;Informationinterchange;Informationtechnology;Specifications
【摘要】:ThisInternationalStandardspecifiesaninterchangeformattofacilitatethemovingoffilesorpartsoffilescontainingdatarecordsbetweencomputersystems.Theinterchangeformatisnotintendedasarecordformatfortheindigenousfilesofanyspecificsystembutmaybeusedforthispurpose.Thestandarddefinesageneralizedstructurewhichcanbeusedtotransmit,betweensystems,filesorrecordscontainingawidevarietyofdatatypesanddatastructures.Itspecifiesthemeansforthedescriptionofthecontentsofdatarecordsbutdoesnotspecifytheirapplicationsemanticsalthoughthesesemanticscanbeincludedasapartofthetransmission.Theinterchangeformatmayalsobeusedtotransportindividualrecords,individualdatafieldsorindividualsubfieldswiththeirdescription.ThisInternationalStandardspecifies:·media-independentfileanddatarecorddescriptionsforinformationinterchange;·thedescriptionofdataelements,vectors,arraysandhierarchiescontainingcharacterstrings,bitstringsandnumericforms;·adatadescriptivefilecomposedofadatadescriptiverecordandcompaniondatarecordsthatenableinterchangetooccurwithminimalspecificexternaldescription;·thedatadescriptiverecordthatdescribesthecharacteristicsofeachdatafieldwithinthecompaniondatarecords;·threelevelsofcomplexityoffileandrecordstructure;·FTAMunstructuredandstructureddocumenttypes
【中国标准分类号】:L73
【国际标准分类号】:35_080
【页数】:84P.;A4
【正文语种】:英语
