NF U10-301-1998 农用轮式拖拉机.最大速度.测定方法

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【英文标准名称】:Bolt,hexagonalhead,fortensileapplication,.ISOthread4Hclass.
【原文标准名称】:六角头承拉螺栓.ISO螺纹4H级
【标准号】:NFL22-125-1985
【标准状态】:现行
【国别】:法国
【发布日期】:1985-03-01
【实施或试行日期】:1985-03-05
【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】:表面处理;尺寸;图解法;航空运输;材料规范;名称与符号;飞行器部件;尺寸公差;紧固件;线密度;六角头螺钉;ISO米制螺纹;六角头紧固件;飞行器设备;螺钉
【英文主题词】:
【摘要】:
【中国标准分类号】:V20
【国际标准分类号】:49_030_20
【页数】:3P;A4
【正文语种】:其他


【英文标准名称】:StandardPracticeforDeterminingtheImpedanceofAbsoluteEddy-CurrentProbes
【原文标准名称】:绝对涡流探针的阻抗测定用标准实施规程
【标准号】:ASTME1629-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:E07.07
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:空气;电桥;缺陷;涡流试验;阻抗;材料测试;实施规程
【英文主题词】:absoluteeddy-currentprobes;eddy-currentprobes;impedance;nondestructivetesting
【摘要】:Eddy-currentprobesmaybeusedforthenondestructiveexaminationofpartsorstructuresmadeofelectricallyconductingmaterials.Manyoftheseexaminationsareintendedtodiscovermaterialdefects,suchascracks,thatmaycausethepartorstructuretobeunsafeorunfitforservice.Eddy-currentprobesthatfailtomeettheperformancelevelrequirementsofthispracticeshallnotbeusedfortheexaminationofmaterialorhardwareunlesstheprobeisqualifiedbysomeothersystemoranagreementhasbeenreachedbytheprobemanufacturerandthepurchaser,orboth.1.1Thispracticecoversaprocedurefordeterminingtheimpedanceofabsoluteeddy-currentprobes(bridge-type,airorferritecore,wirewound,shielded,orunshielded)usedforfindingmaterialdefectsinelectricallyconductingmaterial.Thispracticeisintendedtoestablishauniformtestmethodologytomeasuretheimpedanceofeddy-currentprobespriortoreceiptoftheseprobesbythepurchaserorthespecifier.1.2Limitations-Thispracticedoesnotaddressthecharacterizationormeasurementoftheimpedanceofdifferential,a-ccoupled,ortransmit/receivetypesofprobes.Thispracticedoesnotaddresstheuseofmagneticmaterialsintestingprobes.Thispracticeshallnotbeusedasabasisforselectionofthebestprobeforaparticularapplicationorasameansbywhichtocalibrateaprobeforaspecificexamination.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N25
【国际标准分类号】:19_100;77_040_20
【页数】:6P.;A4
【正文语种】: