ANSI ATIS1000113-2005 信令系统No.7(SS7).综合业务数字网络(ISDN)用户部分
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【英文标准名称】:SignalingSystemNo.7(SS7)-IntegratedServicesDigitalNetwork(ISDN)UserPart
【原文标准名称】:信令系统No.7(SS7).综合业务数字网络(ISDN)用户部分
【标准号】:ANSIATIS1000113-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【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】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:通信网;数字信号;综合服务数字网络;综合业务数字网(ISDN);信号传输;发信号;电信;用户系统
【英文主题词】:Communicationnetworks;Digitalsignals;Integratedservicesdigitalnetwork;ISDN;Signaltransmission;Signalling;Telecommunications;Usersystem
【摘要】:TheIntegratedServicesDigitalNetwork(ISDN)UserPart(UP)definestheprotocolwhichsupportsthesignallingfunctionsrequiredtoprovidevoiceandnon-voiceservicesinanIntegratedServicesDigitalNetwork.
【中国标准分类号】:M12
【国际标准分类号】:33_040_30
【页数】:
【正文语种】:英语
【英文标准名称】:Monitoringandalarmreceivingcentre-Part3:Proceduresandrequirementsforoperation;GermanversionEN50518-3:2011
【原文标准名称】:监控和报警接收中心.第3部分:操作程序和要求;德文版本EN50518-3-2011
【标准号】:EN50518-3-2011
【标准状态】:现行
【国别】:
【发布日期】:2011-09
【实施或试行日期】:2011-09-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:AES;Alarmdevices;Alarmsystems;Constructionrequirements;Controlcentres;Definitions;Design;Electricenergy;Electricalsafety;Emergencycall;Locations;Minimumrequirements;Net-controlstations;Pagingsystems;Planning;Receivingcentraloffices;Safety;Services;Signaldevices;Signalprocessing;Signaltransmission;Signallingdevice;Warningdevices
【摘要】:
【中国标准分类号】:A91
【国际标准分类号】:13_320
【页数】:15P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsandDefinitionsforMechanicalTestingofSteelProducts
【原文标准名称】:钢制品机械试验的标准试验方法和定义
【标准号】:ASTMA370-2009ae1
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:A01.13
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:弯曲试验;延伸率;脆性转变温度;硬度试验;便携式硬度计;断面收缩率;拉伸强度;拉伸试验;屈服强度;钢阀门;钢丝;温度试验.金属/合金;拉伸属性/试验.钢;薄片钢;屈服强度和屈服点;钢管;弯曲试验.金属材料;布氏硬度;沙尔皮冲击试验;延伸率.机械材料;铸件;发电机材料;硬度(压痕).金属材料;抗冲击力;冲击试验.强度;机械分析/试验;钢制压力容器;铁路钢材料;洛氏硬度;七线钢丝索(键);造船钢材料.规范;钢;钢棒;钢制螺栓材料;钢链;钢片;钢片/带;钢片/带/板
【英文主题词】:bendtest;Brinellhardness;Charpyimpacttest;elongation;FATT(FractureAppearanceTransitionTemperature);hardnesstest;portablehardness;reductionofarea;Rockwellhardness;tensilestrength;tensiontest;yieldstrength;Steelvalves;Steelwire;Temperaturetests--metals/alloys;Tensileproperties/testing--steel;Tinmillproducts;Yieldstrengthandyieldpoint;Steeltube;Bendtesting--metallicmaterials;Brinellhardness;Charpyimpacttest;Elongation--metallicmaterials;Forgings;Fractureappearancetransitiontemperature(FATT);Generatormaterials;Hardness(indentation)--metallicmaterials;Impactresistance;Impacttesting--Charpy;Mechanicalanalysis/testing;Pressurevesselsteel;Railroadsteelmaterials;Rockwellhardness;Seven-wirestrand(tendon);Shipbuildingsteelmaterials--specifications;Steel;Steelbars;Steelboltingmaterials;Steelchain;Steelpipe;Steelsheet;Steelsheet/strip;Steelsheet/strip/plate
【摘要】:Ductilevs.BrittleBehavior8212;Body-centered-cubicorferriticalloysexhibitasignificanttransitioninbehaviorwhenimpacttestedoverarangeoftemperatures.Attemperaturesabovetransition,impactspecimensfracturebyaductile(usuallymicrovoidcoalescence)mechanism,absorbingrelativelylargeamountsofenergy.Atlowertemperatures,theyfractureinabrittle(usuallycleavage)mannerabsorbingappreciablylessenergy.Withinthetransitionrange,thefracturewillgenerallybeamixtureofareasofductilefractureandbrittlefracture.Thetemperaturerangeofthetransitionfromonetypeofbehaviortotheothervariesaccordingtothematerialbeingtested.Thistransitionbehaviormaybedefinedinvariouswaysforspecificationpurposes.Thespecificationmayrequireaminimumtestresultforabsorbedenergy,fractureappearance,lateralexpansion,oracombinationthereof,ataspecifiedtesttemperature.Thespecificationmayrequirethedeterminationofthetransitiontemperatureatwhicheithertheabsorbedenergyorfractureappearanceattainsaspecifiedlevelwhentestingisperformedoverarangeoftemperatures.Alternativelythespecificationmayrequirethedeterminationofthefracture1.1Thesetestmethodscoverproceduresanddefinitionsforthemechanicaltestingofsteels,stainlesssteels,andrelatedalloys.Thevariousmechanicaltestshereindescribedareusedtodeterminepropertiesrequiredintheproductspecifications.Variationsintestingmethodsaretobeavoided,andstandardmethodsoftestingaretobefollowedtoobtainreproducibleandcomparableresults.Inthosecasesinwhichthetestingrequirementsforcertainproductsareuniqueoratvariancewiththesegeneralprocedures,theproductspecificationtestingrequirementsshallcontrol.1.2Thefollowingmechanicaltestsaredescribed:
Sections
Tension
5to13
Bend
14
Hardness
15
Brinell
16
Rockwell
17
