DIN V I-ETS 300078-1993 欧洲数字移动电话远程通信系统(阶段1):移动站-基础站系统(MS-BSS)第1层.一般要求;英文版本I-ETS300078:1992
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【英文标准名称】:Europeandigitalcellulartelecommunicationssystem(phase1);MS-BSSlayer1;generalrequirements;englishversionI-ETS300078:1992
【原文标准名称】:欧洲数字移动电话远程通信系统(阶段1):移动站-基础站系统(MS-BSS)第1层.一般要求;英文版本I-ETS300078:1992
【标准号】:DINVI-ETS300078-1993
【标准状态】:作废
【国别】:德国
【发布日期】:1993-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电话系统;位;无线电控制;无线电通信;欧洲的;电信传输法;无线电电路;传播学;移动通信系统;无线电发射机;数字连接;规范(审批);接口;通道;层;数字电路;物理的;电信;数据传送;移动无线电通信系统;无线电设备;尺寸;信号;物理层
【英文主题词】:Bit;Channels;Communication;Communications;Datalinklayers;Datatransfer;Digitalcircuits;Digitalconnections;Europe;European;Formats;Interfaces;Interfaces(dataprocessing);Layers;Mobilecommunicationsystems;Mobileradiosystems;Physical;Physicallayers;Radiocircuits;Radiocontrol;Radioequipment;Radiotransmitters;Radiocommunication;Signals;Specification(approval);Telecommunication;Telecommunicationsystems;Telecommunicationtransmissionmethods;Telecommunications;Telephonesystems
【摘要】:Thedocumentspecifiesthesignallingchannelformatandorderofbittransmissiononthephysicallayerofthemobilestation/basestationsysteminterface.
【中国标准分类号】:M11
【国际标准分类号】:33_070_50
【页数】:25P.;A4
【正文语种】:德语
【英文标准名称】:StandardPracticeforPreparationofPressedPowderWhiteReflectanceFactorTransferStandardsforHemisphericalandBi-DirectionalGeometries
【原文标准名称】:半球状和二维几何形状压制粉末白色反射系数转换标准的准备用标准实施规范
【标准号】:ASTME259-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:E12.02
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:验收检验;覆层;材料;光学;涂料;纸;准备;工艺;参考材料;反射;试验
【英文主题词】:bi-directionalopticalmeasuringsystem;hemisphericalopticalmeasuringsystem;integratingsphere;materialstandards;reflectanceandreflectivity;transferstandards
【摘要】:Allcommercialreflectometersmeasurerelativereflectance.Theinstrumentreadingisthereflectancefactor,theratioofthelightreflectedbyareferencespecimentothatreflectedbyatestspecimen.Thatratioisdependentonspecificinstrumentparameters.Nationalstandardizinglaboratoriesandsomeresearchlaboratoriesmeasurereflectanceoninstrumentscalibratedfrombasicprinciples,therebyestablishingascaleofabsolutereflectanceasdescribedinCIEPublicationNo.44(2).Thesemeasurementsaresufficientlydifficultthattheyareusuallylefttolaboratoriesthatspecializeinthem.Astandardthathasbeenmeasuredonanabsolutescalecouldbeusedtotransferthatscaletoareflectometer.Whilesuchproceduresexist,theconstraintsplacedonthemechanicalpropertiesrestrictthesuitabilityofsomeopticalproperties,especiallythosepropertiesrelatedtothegeometricdistributionofthereflectedlight.Thus,reflectancefactorstandardswhicharesufficientlyruggedandabletobecleaned,departconsiderablyfromtheperfectdiffuserinthegeometricdistributionofreflectedradiance.Thegeometricdistributionofreflectedradiancefromapressedpowderplaqueissufficientlydiffusetoprovideadependablecalibrationofadirectional-hemisphericalreflectometer.Althoughpressedpowderstandardsaresubjecttocontaminationandbreakage,thedirectional-hemisphericalreflectancefactorofpressedpowderstandardscanbesufficientlyreproduciblefromspecimentospecimenmadefromagivenlotofpowder,soastoallowonetoassignabsolutereflectancefactorvaluestoallthepowderinalot.Thispracticedescribeshowtopreparewhitereflectancefactorstandardsfromapowderinamannerthatallowsastandardizinglaboratorytoassigntheabsolutescaleofreflectancetotheplaque.1.1Thispracticecoversproceduresforpreparingpressedpowdertransferstandards.Thesestandardscanbeusedinthenear-ultraviolet,visibleandnear-infraredregionoftheelectromagneticspectrum.ProceduresforcalibratingthereflectancefactorofmaterialsonanabsolutebasisarecontainedinCIEPublicationNo.44().Pressedpowderstandardsareusedastransferstandardsforsuchcalibrationsbecausetheyhaveahighreflectancefactorthatisnearlyconstantwithwavelength,andbecausethegeometricdistributionofreflectedfluxresemblesthatfromtheperfectreflectingdiffuser.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A26
【国际标准分类号】:17_180_20
【页数】:5P.;A4
【正文语种】:
【英文标准名称】:Textileconveyorbelts-Adhesivestrengthbetweenconstitutiveelements-Part1:Methodsoftest(ISO252-1:1999);GermanversionENISO252-1:1999
【原文标准名称】:织物输送带.层与层之间的粘接强度.第1部分:试验方法
【标准号】:DINENISO252-1-1999
【标准状态】:作废
【国别】:德国
【发布日期】:1999-10
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:粘结强度;输送带;试验;测定;抗拉试验;纺织产品;带子;拉伸试验机
【英文主题词】:Adhesion;Adhesiontests;Adhesivestrength;Beltconveyors;Conveyorbelts;Determination;Specifications;Tensiletestingmachines;Tensiletests;Testing;Tests;Textileproducts;Webbing
【摘要】:
【中国标准分类号】:J81
【国际标准分类号】:53_040_20
【页数】:7P;A4
【正文语种】:德语
