DIN ETS 300667-1-1997 宽带综合业务数字网(B-ISDN).数字用户用2号信令系统(DSS2)协议.子寻址补充业务.第1部分:协议规范
时间:2024-05-22 09:42:47 来源: 标准资料网 作者：标准资料网 阅读：9552
【英文标准名称】:BroadbandIntegratedServicesDigitalNetwork(B-ISDN)-DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Subaddressing(SUB)supplementaryservice-Part1:Protocolspecification[ITU-TRecommendationQ.2951,clause8(1995),modified];Engl
【原文标准名称】:宽带综合业务数字网(B-ISDN).数字用户用2号信令系统(DSS2)协议.子寻址补充业务.第1部分:协议规范
【标准号】:DINETS300667-1-1997
【标准状态】:现行
【国别】:德国
【发布日期】:1997-09
【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】:连接线;协议规范;电信;宽频带通信;信号传输;综合服务数字网络;综合业务数字网络;信号发送系统;补充业务;远程通信;分地址编址;传输协议;宽带综合业务数字网;规范;通信;宽带网络;呼叫传输
【英文主题词】:B-ISDN;Broadbandnetwork;Calltransmission;Connectionlines;Integratedservicesdigitalnetwork;ISDN;Protocolspecification;Signaltransmission;Signallingsystems;Specification;Subadressing;Supplementaryservices;Telecommunication;Telecommunications;Transmissionprotocol;Widebandcommunication
【摘要】:ThedocumentcontainstheendorsementnoticeforITU-TRecommendationQ.2951.8asanETSwithadreedmodifications.
【中国标准分类号】:M11
【国际标准分类号】:33_080
【页数】:6P.;A4
【正文语种】:德语
【英文标准名称】:AluminumAlloySheetforCorrugatedAluminumPipe
【原文标准名称】:波纹铝管用铝合金薄板
【标准号】:ASTMB744/B744M-1985
【标准状态】:作废
【国别】:美国
【发布日期】:1985
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:波纹状的;有色金属;铝合金;铝;合金;薄板材;金属;管
【英文主题词】:aluminiumalloys;aluminium;alloys;metals;sheetmaterials;non-ferrousmetals;pipes;corrugated
【摘要】:
【中国标准分类号】:H61
【国际标准分类号】:77_120_10
【页数】:3P;A4
【正文语种】:英语
【英文标准名称】:StandardGuidetoObtainableASTMEquivalentPenetrameterSensitivityforRadiographyofSteelPlates1/4to2in.[6to51mm]ThickwithXRaysand1to6in.[25to152mm]ThickwithCobalt-60
【原文标准名称】:用X射线法作1/4至2英寸(6-51mm)厚钢板的射线照相及用钴-60作1至6英寸(25-152mm)厚钢板的射线照相以获得ASTM等效穿透计敏感性的标准指南
【标准号】:ASTME592-1999(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【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】:E07.02
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:cobalt60;density;equivalentpenetrametersensitivity;exposure;referenceradiographicillustrations;Xrays;Cobalt-60radiography;Density;Equivalentpenetrameter;Exposuretests;Penetrameters;Radiographicexamination;Referenceradiographs;S
【摘要】:Akeyconsiderationwithanyradiographicsystemisitscapabilitytoresolvedetail(thatis,sensitivity).Thedegreeofobtainablesensitivitywithagivensystemisdependentuponseveralradiographicparameterssuchassourceenergylevel,filmtype,typeandthicknessofintensifyingscreens,exposure(density),etc.ThisguidepermitstheusertoestimatethedegreeofsensitivitythatmaybeobtainedwithXraysandcobalt-60gammarayswhenusingaprescribedsetofradiographicparameters.ThisguidemayalsobeusedinconjunctionwithTestMethodE746toprovideabasisfordevelopingdataforevaluationofauser''sspecificsystem.Thisdatamayassistauserindeterminingappropriateparametersforobtainingdesireddegreesofradiographicsystemsensitivity.AnalternatetothisapproachistheuseofthoseadjunctradiographicillustrationsdetailedinSection6.1.1Thisguidetoobtainableequivalentpenetrametersensitivitycoverstheminimumpenetrameterthicknessesforwhichtheimageofthe1Tand2Tholesisvisibleforafewpracticalradiographicconditions.Thevaluesrepresentnearoptimumsensitivityforflatsteelplates.Radiographicconditionsthatgivehighervaluesofscatterbuildupfromthespecimenorbackscatteredradiationattheimageplanewillgivepoorersensitivity.1.2EightradiographsthatillustratesensitivitiesobtainablewithpracticalradiographicsystemsareincludedasadjunctstothisguideandmaybeobtainedfromASTM.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:77_040_20
【页数】:5P.;A4
【正文语种】:英语