您的位置: 标准下载 » 国内标准 » GB 国标 »

GB 11861-1989 连杆轴瓦镗床

作者:标准资料网 时间:2024-05-19 12:58:32  浏览:9875   来源:标准资料网
下载地址: 点击此处下载
基本信息
标准名称:连杆轴瓦镗床
中标分类: 公路、水路运输 >> 公路运输 >> 公路车辆维修设备
替代情况:调整为JT/T 122-1993
发布日期:
实施日期:1990-07-01
首发日期:
作废日期:
出版日期:
页数:9页
适用范围

没有内容

前言

没有内容

目录

没有内容

引用标准

没有内容

所属分类: 公路 水路运输 公路运输 公路车辆维修设备
下载地址: 点击此处下载
【英文标准名称】:VinterfacesatthedigitalLocalExchange(LE)-V5.2interfaceforthesupportofAccessNetwork(AN)-Part8:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthedatalink
【原文标准名称】:数字局域交换的V接口.支持存取网络的V5.2接口.第8部分:数据链路层用抽象试验成套试验装置ATS)和用部分实施试验协议附加信息(PIXIT)格式规范
【标准号】:DINEN300347-8-2001
【标准状态】:现行
【国别】:德国
【发布日期】:2001-05
【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】:局域交换;规范;网络层;交换技术;接口;试验要求;信号传输;远程通信;电路网络;界面;传输协议;通信网;链路层;电信;试验用协议实现附加信息
【英文主题词】:
【摘要】:Thedocumentspecifiesrequirementsinthetelecommunicationsector.
【中国标准分类号】:M14
【国际标准分类号】:33_040_30
【页数】:1P;A4
【正文语种】:德语


【英文标准名称】:StandardGuideforEvaluatingPerformanceCharacteristicsofPhased-ArrayUltrasonicTestingInstrumentsandSystems
【原文标准名称】:评估性能特征的相控接收阵列超声波测试仪器和系统的标准指南
【标准号】:ASTME2491-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E07.06
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:characterization;focalpoint;phased-array;phased-arrayprobe;soundbeamprofile;ultrasound;Nondestructivetesting;Phased-array;Probe;Ultrasonicexamination
【摘要】:Thisguideisintendedtoevaluateperformanceassessmentofcombinationsofphased-arrayprobesandinstruments.Itisnotintendedtodefineperformanceandacceptancecriteria,butrathertoprovidedatafromwhichsuchcriteriamaybeestablished.Recommendedproceduresdescribedinthisguideareintendedtoprovideperformance-relatedmeasurementsthatcanbereproducedunderthespecifiedtestconditionsusingsimpletargetsandthephased-arraytestsystemitself.Itisintendedforphased-arrayflawdetectioninstrumentsoperatinginthenominalfrequencyrangeof1MHzto20MHz,buttheproceduresareapplicabletomeasurementsoninstrumentsutilizingsignificantlyhigherfrequencycomponents.Thisguideisnotintendedforservicecalibration,ormaintenanceofcircuitryforwhichthemanufacturerx2019;sinstructionsareavailable.Implementationofspecificassessmentsmayrequiremoredetailedproceduralinstructionsinaformatoftheusingfacility.Themeasurementdataobtainedmaybeemployedbyusersofthisguidetospecify,describe,orprovideaperformancecriteriaforprocurementandqualityassurance,orserviceevaluationoftheoperatingcharacteristicsofphased-arraysystems.Notallassessmentsdescribedinthisguideareapplicabletoallsystems.Allorportionsoftheguidemaybeusedasdeterminedbytheuser.1.1Thisguidedescribesproceduresforevaluatingsomeperformancecharacteristicsofphased-arrayultrasonicexaminationinstrumentsandsystems.1.2Evaluationofthesecharacteristicsisintendedtobeusedforcomparinginstrumentsandsystemsor,byperiodicrepetition,fordetectinglong-termchangesinthecharacteristicsofagiveninstrumentorsystemthatmaybeindicativeofimpendingfailure,andwhich,ifbeyondcertainlimits,willrequirecorrectivemaintenance.Instrumentcharacteristicsmeasuredinaccordancewiththisguideareexpressedintermsthatrelatetotheirpotentialusefulnessforultrasonicexaminations.Otherelectronicinstrumentcharacteristicsinphased-arrayunitsaresimilartonon-phased-arrayunitsandmaybemeasuredasdescribedinE1065orE1324.1.3Ultrasonicexaminationsystemsusingpulsed-wavetrainsandA-scanpresentation(rforvideo)maybeevaluated.1.4Thisguideestablishesnoperformancelimitsforexaminationsystems;ifsuchacceptancecriteriaarerequired,thesemustbespecifiedbytheusingparties.Whereacceptancecriteriaareimpliedhereintheyareforexampleonlyandaresubjecttomoreorlessrestrictivelimitsimposedbycustomerx2019;sandenduserx2019;scontrollingdocuments.1.5Thespecificparameterstobeevaluated,conditionsandfrequencyoftest,andreportdatarequired,mustalsobedeterminedbytheuser.1.6Thisguidemaybeusedfortheevaluationofacompleteexaminationsystem,includingsearchunit,instrument,interconnections,scannerfixturesandconnectedalarmandauxiliarydevices,primarilyincaseswheresuchasystemisusedrepetitivelywithoutchangeorsubstitution.Thisguideisnotintendedtobeusedasasubstituteforcalibrationorstandardizationofaninstrumentorsystemtoinspectanygivenmaterial.1.7Requiredtestapparatusincludesselectedtestblocksandpositionencodersinadditiontotheinstrumentorsystemtobeevaluated.1.8Precautionsrelatingtotheapplicabilityoftheproceduresandinterpretationoftheresultsareincluded.1.9Alternateprocedures,suchasexamplesdescribedinthisdocument,orothers,mayonlybeusedwithcustomerapproval.1.10ThevaluesstatedinSI......
【中国标准分类号】:N77
【国际标准分类号】:19_100
【页数】:18P.;A4
【正文语种】:英语