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BS EN 1712-1997 焊接无损检验.焊点超声检测.验收水平

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【英文标准名称】:Non-destructiveexaminationofwelds-Ultrasonicexaminationofweldedjoints-Acceptancelevels
【原文标准名称】:焊接无损检验.焊点超声检测.验收水平
【标准号】:BSEN1712-1997
【标准状态】:作废
【国别】:英国
【发布日期】:1997-12-15
【实施或试行日期】:1997-12-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:试验条件;灵敏度;校正;焊接接头;无损检验;焊接;厚度;横向连接;超声检验;尺寸;验收(鉴定);验收检验;连接
【英文主题词】:Boundaries;Buttseams;Ferriticsteels;Materials;Materialstesting;Methods;Non-destructivetesting;Permissibility;Surfaces;Testing;Ultrasonictesting;Ultrasonics;Weldedjoints;Welding;Weldingengineering
【摘要】:ThisEuropeanStandardspecifiesultrasonicacceptancelevels,2and3,forfullpenetrationweldedjointsinferriticsteels,whichcorrespondtothequalitylevelsBandCofEN25817.Otheracceptancelevelscanbeusedbyspecification.AnacceptancelevelcorrespondingtolevelDofEN25817hasnotbeenincludedinthisstandardasultrasonictestingisnotrecommendedforthisweldquality.TheseacceptancelevelsareapplicabletotestingcarriedoutinaccordancewiththestandardsreferredtoinEN12062.Textdeleted.Thestandardisapplicabletothetestingoffullpenetrationferriticsteelwelds,withthicknessesfrom8mmupto100mm.Itcanalsobeusedforothertypesofwelds,materialsandthicknessesabove100mm,providedthetestshavebeenperformedwithnecessaryconsiderationofthegeometryandacousticalpropertiesofthecomponentandanadequatesensitivitycanbeemployedtoenabletheacceptancelevelsofthisstandardtobeapplied.ThenominalfrequencyofprobesusedinthisEuropeanStandardisbetween2MHzand5MHzunlessattenuationorrequirementsforhigherresolutioncallforanotherfrequency.Theuseoftheseacceptancelevelsinconjunctionwithfrequenciesoutsidethisrangeneedstobeconsideredcarefully.
【中国标准分类号】:J33
【国际标准分类号】:25_160_40
【页数】:14P.;A4
【正文语种】:英语


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Product Code:SAE AMS4508
Title:Copper-Zinc Alloy, Laminated Sheet, 70Cu - 30Zn, Surface Bonded
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This specification covers a copper-zinc alloy (brass) in the form of laminated sheet.【英文标准名称】:Electroacoustics-Measurementmicrophones-Part2:primarymethodforthepressurecalibrationoflaboratorystandardmicrophonesbythereciprocitytechnique.
【原文标准名称】:电声学.测量传声器.第2部分:用互易技术对实验室标准传声器进行压力校准的基本方法
【标准号】:NFC97-332-2009
【标准状态】:现行
【国别】:法国
【发布日期】:2009-06-01
【实施或试行日期】:2009-06-06
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:声学试验;电声器件;校准;电容式麦克风;定义(术语);电声学;环境条件;实验室;实验室器具;测量;测量扩音器;测量仪器;测量技术;传声器;高压室;压力传递;声压;测试;转换系数
【英文主题词】:Acoustictesting;Acoustoelectricdevices;Calibration;Condensermicrophones;Definitions;Electroacoustics;Environmentalcondition;Laboratories;Laboratoryapparatus;Measurement;Measurementmicrophones;Measuringinstruments;Measuringtechniques;Microphones;Pressurechambers;Pressuretransmission;Soundpressure;Testing;Transfercoefficient
【摘要】:
【中国标准分类号】:L31
【国际标准分类号】:17_140_50;33_160_50
【页数】:47P;A4
【正文语种】:其他