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【英文标准名称】:Ultrasonics-fields;guidanceforthemeasurementandcharacterizationofultrasonicfieldsgeneratedbymedicalultrasonicequipmentusinghydrophonesinthefrequencyrange0,5MHzto15MHz
【原文标准名称】:超声学声场0.5MHz～15MHz频率范围内用水听器测量和表征医疗超声设备产生的超声场的指南
【标准号】:IEC/TR261220-1993
【标准状态】:作废
【国别】:国际
【发布日期】:1993-05
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC87
【标准类型】:()
【标准水平】:()
【中文主题词】:测量;超声波医用器具;超声波装置;电气工程;水听器;声学测量;医疗技术学;超声波学;声场
【英文主题词】:Acousticmeasurement;Electricalengineering;Hydrophones;Measurement;Medicaltechnology;Soundfields;Ultrasonicdevices;Ultrasonicmedicalapparatus;Ultrasonics
【摘要】:Providesguidance,simplifiedproceduresandguidelinesonthepracticalmeasurementoftheacousticoutput.Proceduresforcorrectingforlimitationscausedbytheuseofhydrophoneswithfinitebandwidthandfiniteactiveelementsizearealsogiven.
【中国标准分类号】:N65
【国际标准分类号】:11_040_01
【页数】:54P;A4
【正文语种】:英语


【英文标准名称】:Weldingconsumables-Wireselectrodes,wires,rodsanddepositsforgas-shieldedarcweldingofcreep-resistingsteels-Classification(ISO21952:2007);EnglishversionofDINENISO21952:2008-02
【原文标准名称】:焊接消耗品.抗蠕变钢的气体保护电弧焊接用丝状电极、焊丝、焊条和沉渍物.分类
【标准号】:DINENISO21952-2008
【标准状态】:作废
【国别】:德国
【发布日期】:2008-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电弧焊接;棒材;化学成分;分类;抗蠕变;抗蠕变钢;干燥;名称与符号;电焊;填充金属;填充金属丝;气体金属电弧焊;气体保护焊;耐热的;惰性气体铠装电弧焊;作标记;金属焊接;电焊条;规范(验收);钢;储存;埋弧焊;抗拉强度;钨惰性气体焊接;焊接;焊接工程;焊接填充金属;焊条;焊丝电极;焊丝
【英文主题词】:Arcwelding;Bars(materials);Chemicalcomposition;Classification;Creepresistant;Creep-resistingsteels;Desiccation;Designations;Electricwelding;Fillermetal;Fillerwire;Gasmetal-arcwelding;Gas-shieldedwelding;Heat-resistant;Inertgas-shieldedarcwelding;Marking;Metalwelding;Rodelectrodes;Specification(approval);Steels;Storage;Submergedarcwelding;Tensilestrength;Tungsteninert-gaswelding;Welding;Weldingelectrodes;Weldingengineering;Weldingfillermetals;Weldingrods;Wireelectrodes;Wires
【摘要】:ThisInternationalStandardspecifiesrequirementsforclassificationofwireelectrodes,wiresandrodsforgas-shieldedmetalarcweldingandtungsteninert-gasweldingofcreep-resistingsteels,andfortheirdepositsintheas-weldedorpost-weldheat-treatedcondition.Onewireelectrodecanbetestedandclassifiedwithdifferentshieldinggases.ThisInternationalStandardisacombinedspecificationprovidingforclassificationutilizingasystembaseduponthechemicalcompositionofwireelectrodes,wiresandrodswithrequirementsforyieldstrengthandaverageimpactenergyof47Jofall-weldmetal,orutilizingasystembaseduponthetensilestrengthoftheall-weldmetaldepositsandthechemicalcompositionofwireelectrodes,wiresandrods.1)Clauses,subclausesandtableswhichcarrythesuffixletter"A"areapplicableonlytowireelectrodes,wires,rodsanddepositsclassifiedinaccordancewiththesystembaseduponthechemicalcompositionwithrequirementsforyieldstrengthandtheaverageimpactenergyof47Jofall-weldmetaldepositsunderthisInternationalStandard.2)Clausessubclausesandtableswhichcarrythesuffixletter"B"areapplicableonlytowireelectrodes,wires,rodsanddepositsclassifiedinaccordancewiththesystembaseduponthetensilestrengthofall-weldmetaldepositsandthechemicalcompositionofwireelectrodes,wiresandrodsunderthisInternationalStandard.3)Clauses,subclausesandtableswhichdonothaveeitherthesuffixletter"A"orthesuffixletter"B"areapplicabletoallwireelectrodes,wires,rodsanddepositsclassifiedunderthisInternationalStandard.
【中国标准分类号】:J33
【国际标准分类号】:25_160_20
【页数】:22P.;A4
【正文语种】:英语