【英文标准名称】:StandardPracticeforMeasuringThicknessbyManualUltrasonicPulse-EchoContactMethod
【原文标准名称】:用人工超声脉冲回波接触法测量厚度的标准实施规程
【标准号】:ASTME797-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:(Practice)
【标准水平】:()
【中文主题词】:测量;金属;无损检验;试验;厚度;超声检验
【英文主题词】:contactexamination;nondestructivetesting;pulse-echo;thicknessmeasurement;ultrasonics
【摘要】:Thetechniquesdescribedprovideindirectmeasurementofthicknessofsectionsofmaterialsnotexceedingtemperaturesof200x00B0;F[93x00B0;C].Measurementsaremadefromonesideoftheobject,withoutrequiringaccesstotherearsurface.Ultrasonicthicknessmeasurementsareusedextensivelyonbasicshapesandproductsofmanymaterials,onprecisionmachinedparts,andtodeterminewallthinninginprocessequipmentcausedbycorrosionanderosion.Recommendationsfordeterminingthecapabilitiesandlimitationsofultrasonicthicknessgagesforspecificapplicationscanbefoundinthecitedreferences.5,61.1Thispractice178;providesguidelinesformeasuringthethicknessofmaterialsusingthecontactpulse-echomethodattemperaturesnottoexceed200176;F[93176;C].1.2Thispracticeisapplicabletoanymaterialinwhichultrasonicwaveswillpropagateataconstantvelocitythroughoutthepart,andfromwhichbackreflectionscanbeobtainedandresolved.1.3Thevaluesstatedineitherinch-poundorSIunitsaretoberegardedasstandard.Thevaluesgiveninbracketsareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:
【页数】:7P.;A4
【正文语种】: