【英文标准名称】:Ultrasonicnon-destructivetesting-Referenceblocksandtestproceduresforthecharacterizationofcontactsearchunitbeamprofiles
【原文标准名称】:超声无损检测接触式传感器光束轮廓特性的检测程序和基准块
【标准号】:ISO12715-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-08
【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】:试验设备;校准块;超声检验;特性记述;无损检验;试验;测量技术;探头;外形;参考块
【英文主题词】:Calibrationblocks;Characterisations;Measuringtechniques;Non-destructivetesting;Probe;Profile;Referenceblocks;Testequipment;Testing;Ultrasonictesting
【摘要】:ThisInternationalstandardintroducestwometalreferenceblocks,thehemi-step(HS)andtheside-drilled-hole(SDH)blocks.ThisInternationalStandardestablishesproceduresformeasuringthesoundfieldorbeamprofilesproducedbysearchunitsincontacttests.Thesearchunitsincludestraightbeam,anglebeam(refractedcompressionalandrefractedshear),focusedbeamanddualelementsearchunits.Thediameterorthesidedimensionofthesearchunitshallbenogreaterthan25mm.ThemethodologyofthisInternationalStandardprovidesguidelinesforsearchunitstobeusedfordifferentmetalsincludingforgedorrolledsteel,aluminumortitaniumalloyproducts.ThefrequencyrangeofthesearchunitsusedinthisInternationalStandardextendsfrom1MHzto15MHz,where1MHzto5MHzisbestsuitedforsteelsand5MHzto15MHzisbestforfinegrainstructuredalloyssuchasaluminumproducts.IfthisInternationalStandardistobeusedformaterialotherthansteels,usersshouldbeawareofthefactthatthewavevelocitiesinthesematerialsmaybedifferentfromthatofsteelsandtheanglebeamsearchunitsarenormallydesignedbasedonthesteelapplications.Snell'slawofrefractionisdescribedinthisInternationalStandardsothatcorrectrefractionanglesinothermaterialscanbecalculated.ThisInternationalStandardappliestoanglebeamsearchunitsofallpracticalangles(0°to70°,andtofocusedanddualelementsearchunits.ThisInternationalStandarddoesnotaddresstheuseofsurface(Rayleigh)wavesearchunits.TheproceduresinthisInternationalStandardcanbeusedinwhole,orinpart,withotherstandards.Fortestingmaterialswhichareverythickorverythin,thepresentreferenceblocksmaybemadeproportionallylargerorsmallertoaccommodatedifferentsearchunitbeamsizes.ThisInternationalStandarddoesnotaddresstheestimationofequivalentdefectsizeswhichwillrequirereferenceblockswithflat-bottom-holes.ThisInternationalStandardestablishesnoacceptancecriteria;butdoesestablishthetechnicalbasisforcriteriathatmaybedefinedbyuserparties.
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:24P;A4
【正文语种】:英语


【英文标准名称】:Geographicinformation--Qualityevaluationprocedures
【原文标准名称】:地理信息质量评估程序
【标准号】:JISX7114-2009
【标准状态】:现行
【国别】:日本
【发布日期】:2009-05-25
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonInformationTechnology
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:A75
【国际标准分类号】:35_240_70
【页数】:86P.;A4
【正文语种】:日语