【英文标准名称】:Fibreopticinterconnectingdevicesandpassivecomponents-Basictestandmeasurementprocedures-Part3-20:Examinationsandmeasurements;Directivityoffibreopticbranchingdevices
【原文标准名称】:纤维光学互连器件和无源元件基本试验和测量程序第3-20部分:检查和测量纤维光学分支器件的定向性
【标准号】:IEC61300-3-20-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-04
【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/SC86B
【标准类型】:()
【标准水平】:()
【中文主题词】:光波导;测量技术;紧固件;试验
【英文主题词】:Branchingdevices;Cabledistributioncubicles;Cables;Checkgauge;Components;Connectiontechnology;Damping;Directivity;Directivityfactors;Electricplugs;Electricalengineering;Fasteners;Fibreoptics;Glassfibrecables;Measurement;Measuringtechniques;Opticalwaveguides;Passive;Testing
【摘要】:ThepurposeofthispartofIEC61300istomeasurethedirectivityoflightbetweenchannelsofamultiportnon-wavelength-selectiveMxNfibreopticbranchingdevice.Thedirectivityisdefinedasthefractionofthelightthatgoesfromaninputpathtoanotherinputopticalpath,normallyisolatedfromthepreviousone.
【中国标准分类号】:M33
【国际标准分类号】:33_180_20
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:StandardGuideforIndentationExaminations
【原文标准名称】:刻纹检验的标准指南
【标准号】:ASTME2291-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:E30.02
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:检验;刻纹
【英文主题词】:electrostaticdetectiondevice(EDD);embossing;forensicscience;indentations;questioneddocuments
【摘要】:Whensheetsofpaperareindirectorindirectcontactwithoneanother,impressionsonthetopsheetcanproduceindentationsonthesheet(s)below.Thisguideestablishesproceduresforvisualizingthoseindentations.4.2.1Theseproceduresareessentiallynon-destructive;however,pencilwritingandsingle-strikeribbontypingcanbepartiallyliftedfromthedocumentbyEDD.Althoughthiseffectcanbeminimal,adequatedocumentationofsuchitemsshouldprecedeEDD.Paperfiberdisturbancescausedbyerasuresorpresentintornpaperedgesmaybevisualizedusingthisguide.Electrostaticdetectiondevice(EDD)examinationsmaybeusefulindevelopingothertypesofimpressionsonpaperitems(forexample,typewrittenmaterial,shoeprintsandlatentprints).Theproceduresoutlinedherearegroundedinthegenerallyacceptedbodyofknowledgeandexperienceinthefieldofforensicdocumentexamination.Byfollowingtheseprocedures,aforensicdocumentexaminercanreliablyreachanopinionconcerningindentations.1.1Thisguideprovidesproceduresthatshouldbeusedbyforensicdocumentexaminers(E444)forexaminationsandcomparisonsinvolvingvisualizationandrecordingofindentations.1.2Theseproceduresincludeevaluationofthesufficiencyofthematerialavailableforexamination.1.3Theparticularmethodsemployedinagivencasewilldependuponthenatureofthematerialavailableforexamination.1.4Thisguidemaynotcoverallaspectsofunusualoruncommonexaminations.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:A92
【国际标准分类号】:03_160
【页数】:3P.;A4
【正文语种】:
基本信息
标准名称: | 轮窑热平衡、热效率测定与计算方法 |
英文名称: | The methods for the measurement and calculation of heat balance, heat efficiency of annular kilns |
中标分类: |
建材 >>
建材机械与设备 >>
制砖与制瓦设备 |
ICS分类: |
|
替代情况: | 被JC/T 791-2007替代 |
发布日期: | 1900-01-01 |
实施日期: | 1900-01-01 |
首发日期: | 1900-01-01 |
作废日期: | 2008-04-01 |
出版日期: | 1900-01-01 |
页数: | 33页 |
适用范围
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所属分类: 建材 建材机械与设备 制砖与制瓦设备