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【英文标准名称】:Harmonizedsystemofqualityassessmentforelectroniccomponents.Genericspecification.Quartzcrystalcontrolledoscillators
【原文标准名称】:电子元器件质量评定协调体系.总规范.石英晶体受控振荡器
【标准号】:BSEN169000-1993
【标准状态】:现行
【国别】:英国
【发布日期】:1993-08-15
【实施或试行日期】:1993-08-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:晶体谐振器;频率;质量保证体系;环境试验;射频;稳定性;定义;脉冲调制;电波测量;逻辑电路;评估的质量;额定值;灵敏度;相(电);电功率测量;阻抗测量;电路;调频;试验条件;振荡器;调幅;乱真信号;频率测量;介质装置;检验;时间;性能试验;认可试验;质量评估;电失真;电子设备及元件;机械试验;耐久试验;资格鉴定;电阻测量;电绝缘;漏泄试验;作标记;压电器件;电气试验;能力鉴定;外观检查(试验);电压测量
【英文主题词】:assessedquality;electricalwavemeasurement;dielectricdevices;approvaltesting;time;testingconditions;oscillators;leaktests;electricaltesting;frequencies;piezoelectricdevices;inspection;visualinspection(testing);electricalinsulation;marking;qualityassurancesystems;resistancemeasurement;sensitivity;endurancetesting;mechanicaltesting;impedancemeasurement;environmentaltesting;circuits;qualificationapproval;frequencymodulation;crystalresonators;frequencymeasurement;amplitudemodulation;phase(electric);electronicequipmentandcomponents;capabilityapproval;logiccircuits;electricdistortion;ratings;powermeasurement(electric);radiofrequencies;definitions;stability;performancetesting;noise(spurioussignals);pulsemodulation;voltagemeasurement
【摘要】:Specifiesmethodsoftestandgeneralrequirementsforoscillatorsofassessedqualityusingeithercapabilityapprovalorqualificationapprovalprocedures.
【中国标准分类号】:L21
【国际标准分类号】:
【页数】:96P.;A4
【正文语种】:英语


【英文标准名称】:Basesfordesignofstructures-Assessmentofexistingstructures
【原文标准名称】:结构设计基础.现有结构的评定
【标准号】:ISO13822-2001
【标准状态】:作废
【国别】:国际
【发布日期】:2001-12
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC98
【标准类型】:()
【标准水平】:()
【中文主题词】:数学计算;土木工程;建筑物;计划;定义;安全;评定;结构
【英文主题词】:Buildings;Civilengineering;Definitions;Evaluations;Mathematicalcalculations;Planning;Safety;Structures
【摘要】:1ThisInternationalStandardprovidesgeneralrequirementsandproceduresfortheassessmentofexistingstructures(buildings,bridges,industrialstructures,etc.)basedontheprinciplesofstructuralreliabilityandconsequencesoffailure.ItisbasedonISO2394.2Itisapplicabletotheassessmentofanytypeofexistingstructurethatwasoriginallydesigned,analysedandspecifiedbasedonacceptedengineeringprinciplesand/ordesignrules,aswellasstructuresconstructedonthebasisofgoodworkmanship,historicexperienceandacceptedprofessionalpractice.Theassessmentcanbeinitiatedunderthefollowingcircumstances:—ananticipatedchangeinuseorextensionofdesignworkinglife;—areliabilitycheck(e.g.forearthquakes,increasedtrafficactions)asrequiredbyauthorities,insurancecompanies,owners,etc.;—structuraldeteriorationduetotime-dependentactions(e.g.corrosion,fatigue);—structuraldamagebyaccidentalactions(seeISO2394).NOTE1ThisInternationalStandardisapplicabletohistoricalstructures,providedadditionalconsiderationsaretakenintoaccountconcerningthepreservationofthehistoricalappearanceofthestructureandthepreservationofitshistoricalmaterials.3ThisInternationalStandardisapplicabletoexistingstructuresofanymaterial,althoughspecificadaptationcanberequireddependingonthetypeofmaterial,suchasconcrete,steel,timber,masonry,etc.4ThisInternationalStandardprovidesprinciplesregardingactionsandenvironmentalinfluences.Furtherdetailedconsiderationwillbenecessaryforaccidentalactionssuchasfireandearthquake.NOTE2Fireresistancerequirespropertiesdifferentfromthoseforstructuralsafetyandintegrity.Alsofirehazardscanbecreatedbychangeinuse.Specialrequirementsarenecessaryforseismichazards,takingthedynamicactionandstructuralresponseintoaccount.5ThisInternationalStandardisintendedtoserveasabasisforpreparingnationalstandardsorcodesofpracticeinaccordancewithcurrentengineeringpracticeandtheeconomicconditions.
【中国标准分类号】:J04
【国际标准分类号】:91_010_30;91_080_01
【页数】:35P.;A4
【正文语种】:英语