【英文标准名称】:Non-destructivetesting-Evaluatingperformancecharacteristicsofultrasonicpulse-echotestingsystemswithouttheuseofelectronicmeasurementinstruments
【原文标准名称】:无损检验.不使用电子测量仪器评价超声脉冲回波检验系统的性能特征
【标准号】:ISO18175-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-03
【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/TC135
【标准类型】:()
【标准水平】:()
【中文主题词】:测量技术;超声检验;超声试验系统;测量仪器;试验;测量系统;无损检验;脉冲回波;超声错误检测
【英文主题词】:Measuringinstruments;Measuringsystems;Measuringtechniques;Non-destructivetesting;Pulsereplies;Testing;Ultrasonicflawdetector;Ultrasonictestsystems;Ultrasonictesting
【摘要】:ThisInternationalStandarddescribesproceduresforevaluatingthefollowingperformancecharacteristicsofultrasonicpulse-echoexaminationinstruments:—horizontallimitandlinearity;—verticallimitandlinearity;—resolution-entrysurfaceandfarsurface;—sensitivityandnoise;—accuracyofcalibratedgaincontrols.RelevantterminologycanbefoundinASTMTerminologyE1316andIEEEStandard100.Evaluationofthesecharacteristicsisintendedtobeusedforcomparinginstrumentsor,byperiodicrepetition,fordetectinglong-termchangesinthecharacteristicsofagiveninstrumentthatmaybeindicativeofimpendingfailure,andwhich,ifbeyondcertainlimits,willrequirecorrectivemaintenance.Ultrasonicexaminationinstrumentsusingpulsed-wavetrainsandA-scanpresentation(rforvideo)mayalsobeevaluated.Theproceduresareapplicabletoshop-orfield-conditionsandadditionalelectronicmeasurementinstrumentationisnotrequired.ThisInternationalStandardestablishesnoperformancelimitsforexaminationsystems;ifsuchacceptancecriteriaarerequired,thesemustbespecifiedbytheusingparties.Whereacceptancecriteriaareimpliedhereintheyareonlyforthesakeofexampleandaresubjecttomoreorlessrestrictivelimitsimposedbycustomer'sandenduser'scontrollingdocuments.Thespecificparameterstobeevaluated,conditionsandfrequencyoftest,andreportdatarequired,mustalsobedeterminedbytheuser.ThisInternationalStandardmaybeusedfortheevaluationofacompleteexaminationsystem,includingtransducer,instrument,interconnections,fixturesandconnectedalarmandauxiliarydevices,primarilyincaseswheresuchasystemisusedrepeatedlywithoutchangeorsubstitution.ThisInternationalStandardisnotintendedtobeusedasasubstituteforcalibrationofasystemtoinspectanygivenmaterial.Requiredtestapparatusincludesselectedreferenceblocksandaprecisionexternalattenuator(wherespecified)inadditiontotheinstrumenttobeevaluated.Precautionsrelatingtotheapplicabilityoftheproceduresandinterpretationoftheresultsareincluded.Alternateprocedures,suchasexamplesdescribedinthisInternationalStandard,orothers,mayonlybeusedwithcustomerapproval.
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:22P.;A4
【正文语种】:英语