DIN EN 10109-1-1995 金属材料.硬度检验.第1部分:洛氏法.(刻度A,B,C,D,E,F,G,H,K,15N,30N,45N,15T,30T和45T)

上一篇: DIN EN 50060/A1-1995 限定使用的手工电弧焊的电源;德文版本EN50060:1989/A1:1994;修改件A1
下一篇: DIN 2299-2-1995 几何参数的鉴定.ISO公制螺纹不过端环规.第2部分:公称直径范围为50mm-200mm.精密机械用

【英文标准名称】:StandardPracticesforThermalNeutronRadiographyofMaterials
【原文标准名称】:材料的热中子射线照相术标准实施规程
【标准号】:ASTME748-2002(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:E07.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:neutronattenuation;neutroncollimator;neutronradiography;neutronsources;Neutronradiographictesting;Nuclearapplications/materials;Radiationexposure;Radiographicexamination;Thermalneutronradiographictesting
【摘要】:Thesepracticesincludetypesofmaterialstobeexamined,neutronradiographicexaminationtechniques,neutronproductionandcollimationmethods,radiographicfilm,andconverterscreenselection.Withinthepresentstateoftheneutronradiologicart,thesepracticesaregenerallyapplicabletospecificmaterialcombinations,processes,andtechniques.1.1Purpose8212;Practicestobeemployedfortheradiographicexaminationofmaterialsandcomponentswiththermalneutronsareoutlinedherein.Theyareintendedasaguidefortheproductionofneutronradiographsthatpossessconsistentqualitycharacteristics,aswellasaidingtheusertoconsidertheapplicabilityofthermalneutronradiology(radiology,radiographic,andrelatedtermsaredefinedinTerminologyE1316).Statementsconcerningpreferredpracticeareprovidedwithoutadiscussionofthetechnicalbackgroundforthepreference.ThenecessarytechnicalbackgroundcanbefoundinRefs(1-16).1.2Limitations8212;Acceptancestandardshavenotbeenestablishedforanymaterialorproductionprocess(seeSection5onBasisofApplication).Adherencetothepracticeswill,however,producereproducibleresultsthatcouldserveasstandards.Neutronradiography,whetherperformedbymeansofareactor,anaccelerator,subcriticalassembly,orradioactivesource,willbeconsistentinsensitivityandresolutiononlyiftheconsistencyofalldetailsofthetechnique,suchasneutronsource,collimation,geometry,film,etc.,ismaintainedthroughthepractices.Thesepracticesarelimitedtotheuseofphotographicorradiographicfilmincombinationwithconversionscreensforimagerecording;otherimagingsystemsareavailable.Emphasisisplacedontheuseofnuclearreactorneutronsources.1.3InterpretationandAcceptanceStandards8212;Interpretationandacceptancestandardsarenotcoveredbythesepractices.Designationofaccept-rejectstandardsisrecognizedtobewithinthecognizanceofproductspecifications.1.4SafetyPractices8212;GeneralpracticesforpersonnelprotectionagainstneutronandassociatedradiationpeculiartotheneutronradiologicprocessarediscussedinSection17.Forfurtherinformationonthisimportantaspectofneutronradiology,refertocurrentdocumentsoftheNationalCommitteeonRadiationProtectionandMeasurement,theCodeofFederalRegulations,theU.S.NuclearRegulatoryCommission,theU.S.DepartmentofEnergy,theNationalInstituteofStandardsandTechnology,andtoapplicablestateandlocalcodes.1.5OtherAspectsoftheNeutronRadiographicProcess8212;Formanyimportantaspectsofneutronradiographysuchastechnique,files,viewingofradiographs,storageofradiographs,filmprocessing,andrecordkeeping,refertoGuideE94.(SeeSection2.)1.6ThevaluesstatedineitherSIorinch-poundunitsaretoberegardedasthestandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(Formorespecificsafetyinformationsee1.4.)
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:11P.;A4
【正文语种】:英语

标准名称：	机车在役零部件无损检测 第5部分：柴油机曲轴磁粉检测
发布部门：	中华人民共和国铁道部
发布日期：	2011-04-02
实施日期：	2011-10-01
首发日期：
作废日期：
出版社：	中国铁道出版社
出版日期：	2011-10-01

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