BS EN 3238-2010 航空航天系列.金属材料.试验方法.电线和铆钉用剪切试验
时间:2024-05-13 16:06:58 来源: 标准资料网 作者：标准资料网 阅读：9160
【英文标准名称】:Aerospaceseries.Metallicmaterials.Testmethod.Sheartestforwiresandrivets
【原文标准名称】:航空航天系列.金属材料.试验方法.电线和铆钉用剪切试验
【标准号】:BSEN3238-2010
【标准状态】:现行
【国别】:英国
【发布日期】:2010-11-30
【实施或试行日期】:2010-11-30
【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】:航空航天运输;航空运输;定义(术语);紧固件;材料;金属材料;金属;铆钉;剪切强度;航天运输;试验报告;试验;焊丝
【英文主题词】:Aerospacetransport;Airtransport;Definitions;Fasteners;Materials;Metallicmaterials;Metals;Rivets;Shearstrength;Spacetransport;Testreports;Testing;Wires
【摘要】:Thisstandardspecifiestherequirementsforsheartestingrivetwireandrivetsinmetallicmaterialsforaerospaceapplications.ItshallbeappliedwhenreferredtointheENtechnicalspecificationormaterialstandardunlessotherwisespecifiedonthedrawing,orderorinspectionschedule.
【中国标准分类号】:V20
【国际标准分类号】:49_030_99
【页数】:14P.;A4
【正文语种】:英语
【英文标准名称】:PracticeforComputedTomographic(Ct)Examination
【原文标准名称】:计算机断层摄影(CT)检验惯例
【标准号】:ANSI/ASTME1570-1995
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【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】:医学科学;计算机断层摄影
【英文主题词】:computedtomography;medicalsciences
【摘要】:Computedtomography(CT)maybeusedfornewapplications,or,inplaceoffilmradiography,providedthatthecapabilitytodisclosephysicalfeaturesorindicationsthatformtheaccept/rejectcriteriaisfullydocumentedandavailableforreview.TheCTsystemsaddressedinthispracticeutilizeasetoftransmissionmeasurementsmadealongasetofpathsprojectedthroughthetestobjectfrommanydifferentdirections.Eachofthetransmissionmeasurementswithintheseviewsisdigitizedandstoredinacomputer,wheretheyaresubsequentlyconditioned(forexample,normalizedandcorrected)andreconstructedbyoneofavarietyoftechniques.Anin-depthtreatmentofCTprinciplesisgiveninGuideE1441.Computedtomography(CT),aswithconventionalradiographyandradioscopicexamination,isbroadlyapplicabletoanymaterialortestobjectthroughwhichabeamofpenetratingradiationmaybepassedanddetected,includingmetals,plastics,ceramics,metallic/nonmetalliccompositematerial,andassemblies.TheprincipaladvantageofCTisthatitprovidesdensitometric(thatis,radiologicaldensityandgeometry)imagesofthincrosssectionsthroughanobject.Becauseoftheabsenceofstructuralsuperposition,imagesaremucheasiertointerpretthanconventionalradiologicalimages.ThenewusercanquicklylearntoreadCTdatabecauseimagescorrespondmorecloselytothewaythehumanmindvisualizes3Dstructuresthanconventionalprojectionradiology.Further,becauseCTimagesaredigital,theimagesmaybeenhanced,analyzed,compressed,archived,inputasdataintoperformancecalculations,comparedwithdigitaldatafromnondestructiveevaluation(NDE)modalities,ortransmittedtootherlocationsforremoteviewing,oracombinationthereof.Whilemanyofthedetailsaregenericinnature,thispracticeimplicitlyassumestheuseofpenetratingradiation,specificallyxrayand[gamma]ray.ThispracticeprovidesproceduralinformationforperformingCTexaminations.ThetechniquesandtheapplicationsassociatedwithCTexaminationarediverse.Thispracticeisnotintendedtobelimitingorrestrictive,butrathertoaddressthegeneraluseofCTtechnologyandtherebyfacilitateitsuse.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificsafetystatements,seeSection8,NBSHandbook114,andFederalStandards21CFR1020.40and29CFR1910.96.
【中国标准分类号】:C43
【国际标准分类号】:35_240_80
【页数】:
【正文语种】:英语
【英文标准名称】:Informationprocessing-Implementationofthe7-bitcodedcharactersetandits7-bitand8-bitextensionson3,81mmmagnetictapecassettefordatainterchange.
【原文标准名称】:信息处理.信息互换用3．81毫米盒式磁带上的7位编码字符组及其7位和8位扩展编码的实施
【标准号】:NFZ62-121-1975
【标准状态】:现行
【国别】:法国
【发布日期】:1975-09-01
【实施或试行日期】:1975-09-08
【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】:数据传输;信息处理;数据处理;信息交换;数据媒体;磁带;信息交流;数据介质;编码(数据转换);代码;ISO7位代码字符集;字符集;代码扩充;编码;7位代码字符集;盒式磁带;代码字符集
【英文主题词】:
【摘要】:
【中国标准分类号】:L71
【国际标准分类号】:35_040
【页数】:2P;A4
【正文语种】:其他