BS A 305-1994 螺栓.试验方法
时间:2024-05-12 21:30:54 来源: 标准资料网 作者：标准资料网 阅读：9804
【英文标准名称】:Bolts-Testmethods
【原文标准名称】:螺栓.试验方法
【标准号】:BSA305-1994
【标准状态】:现行
【国别】:英国
【发布日期】:1994-08-15
【实施或试行日期】:1994-08-15
【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】:应力松弛;机械试验;疲劳试验;公式;飞行器部件;抗拉试验;破裂应力;校准;螺栓;外螺纹紧固件;报告;试验设备;剪切试验;螺纹紧固件;试验条件;热试验;应力腐蚀;检验
【英文主题词】:Aerospacetransport;Airtransport;Aircraft;Aircraftcomponents;Bolts;Fasteners;Industries;Mechanicaltesting;Screws(bolts);Spacetransport;Studs;Studs(fasteners);Testing;Tests
【摘要】:ThisInternationalStandardspecifiestestmethodsforboltsforaerospaceconstructions.Itisapplicablewheneverquotedinreference.
【中国标准分类号】:J13
【国际标准分类号】:49_030_20
【页数】:20P;A4
【正文语种】:英语
【英文标准名称】:Armourstone-Specification
【原文标准名称】:装甲铺面石料.规范
【标准号】:BSEN13383-1-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-05-28
【实施或试行日期】:2002-05-28
【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】:
【英文主题词】:
【摘要】:ThisEuropeanStandardspecifiesthepropertiesofaggregatesobtainedbyprocessingnatural,manufacturedorrecycledmaterialsandmixturesofthesematerialsforuseasarmourstone.ItprovidesfortheevaluationofconformityoftheproductstothisEuropeanStandard.NOTE1ArmourstoneusedinconstructionshouldcomplywithalltherequirementsofthisEuropeanStandard.AswellasfamiliarandtraditionalnaturalandmanufacturedarmourstoneMandateM/125"Aggregates"includedrecycledarmourstoneandsomematerialsfromneworunfamiliarsources.Recycledarmourstoneareincludedinthestandardsandnewtestmethodsforthemareatanadvancedstageofpreparation.Forunfamiliarmaterialsfromsecondarysources,however,theworkonstandardisationhasonlystartedrecentlyandmoretimeisneededtodefineclearlytheoriginsandcharacteristicsofthesematerials.Inthemeantimesuchunfamiliarmaterialswhenplacedonthemarketasarmourstonemustcomplyfullywiththisstandardandnationalregulationsfordangeroussubstances(seeAnnexZAofthestandard)dependingupontheirintendeduse.Additionalcharacteristicsandrequirementsmaybespecifiedonacasebycasebasisdependinguponexperienceofuseoftheproduct,anddefinedinspecificcontractualdocuments.NOTE2FineraggregatesthanspecifiedinthisEuropeanStandardareusedinhydraulicstructures.ForsuchaggregatesEuropeanStandardsforotherendusesofaggregatesshouldbeapplied.
【中国标准分类号】:Q21
【国际标准分类号】:91_100_15
【页数】:42P;A4
【正文语种】:英语
【英文标准名称】:Helical-scancompresseddigitalvideocassettesystemusing6,35mmmagnetictape-FormatD-7-Part1:VTRspecifications
【原文标准名称】:使用6.35mm磁带的螺旋扫描压缩数字视频盒式系统.格式D-7.第1部分:VTR规范
【标准号】:IEC62071-1-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-10
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;规范(验收);磁带记录;盒式磁带;接口(数据处理);螺旋扫描记录(法);数字的;调制;盒式录象带;记录系统;数字录制技术;视频记录;娱乐电子学;数据;结构
【英文主题词】:Cassettes;Cassettes(magnetictapes);Data;Digital;Digitalrecordingtechnique;Electricalengineering;Entertainmentelectronics;Formats;Helicalscanrecording;Interfaces;Interfaces(dataprocessing);Magnetictaperecordings;Modulation;Recording;Recordingequipment;Recordingsystems;Specification(approval);Structure;Systems;Videocassettes;Videorecording
【摘要】:ThispartofIEC62071specifiesthecontent,formatandrecordingmethodofthedatablockscontainingvideo,audio,andassociateddatawhichformthehelicalrecordson6,35mmtapecontainedincassettesasspecifiedinSMPTE307M.Inaddition,thisstandardspecifiesthecontent,format,andrecordingmethodforlongitudinalcueandcontroltracks.Onevideochannelandtwoindependentaudiochannelsarerecordedinthedigitalformatfor25Mb/sVTRsandonevideochannelandfourindependentaudiochannelsfor50Mb/sVTRs.Eachofthesechannelsisdesignedtobecapableofindependentediting.Thevideochannelrecordsandreproducesacomponenttelevisionsignalinthe525-linesystemwithaframefrequencyof29,97Hz(hereinafterreferredtoasthe525/60system)andthe625-linesystemwithaframefrequencyof25,00Hz(hereinafterreferredtoasthe625/50system).Priortorecording,thedigitalsignalisbecompressedtoaDV-based25Mb/sbitstreamwith4:1:1samplingoraDV-based50Mb/sbitstreamwith4:2:2sampling.ThestandardincludestheprocessrequiredtodecodetheDV-based25Mb/sbitstreamand50Mb/sbitstreamintooutputvideo,audio,anddata.
【中国标准分类号】:M71
【国际标准分类号】:33_160_40
【页数】:98P.;A4
【正文语种】:英语