NF C28-925-1987 冶金产品.冷轧非合金钢制半成品磁性钢带
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来源:标准资料网
【英文标准名称】:IRONANDSTEEL.COLDROLLEDMAGNETICNON-ALLOYEDSTEELSTRIPDELIVEREDINTHESEMI-PROCESSSTATE.
【原文标准名称】:冶金产品.冷轧非合金钢制半成品磁性钢带
【标准号】:NFC28-925-1987
【标准状态】:作废
【国别】:法国
【发布日期】:1987-09
【实施或试行日期】:1987-08-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:分类系统;钢铁制品;名称与符号;滚轧;非合金钢;材料的磁性能;几何特性;交付条件;铁;验收;冷加工;特性;带材;带钢;磁性能;几何;磁路;交付;钢;磁性合金;货物保管条件;接收;尺寸公差;试验;冷轧制品;分类
【英文主题词】:
【摘要】:
【中国标准分类号】:H42
【国际标准分类号】:
【页数】:11P;A4
【正文语种】:其他
【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】:
MIL-T-46938C (AMENDMENT 1), MILITARY SPECIFICATION: TETRACENE (20 DEC 1996)., This Amendment forms a part of Military Specification MIL-T-46938C (AR), dated 16May 1994, and is approved for use by the U.S. Army Armament Research, Development andEngineering Center and is available for use by all Departments and Agencies of the Department ofDefense.
