ASTM E1734-2004 铸件的放射性检验用标准实施规程

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【英文标准名称】:StandardPracticeforRadioscopicExaminationofCastings
【原文标准名称】:铸件的放射性检验用标准实施规程
【标准号】:ASTME1734-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:E07.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:铸件;射线检查;放射性照射;γ辐射;材料试验;检验;实施规程
【英文主题词】:castings;digitalimageprocessing;gammaray;inmotion;nondestructivetesting;radiation;radioisotope;radioscopicexamination;radioscopy;X-ray
【摘要】:Therequirementsinthispracticeareintendedtocontrolthequalityoftheradioscopicimagestoproducesatisfactoryandconsistentresults.Thispracticeisnotintendedforcontrollingtheacceptabilityofthecasting.Theradioscopicmethodmaybeusedfordetectingvolumetricdiscontinuitiesanddensityvariationsthatarewithinthesensitivityrangeofthispractice.Thedynamicaspectsofradioscopyareusefulformaximizingdefectresponse.1.1Thispracticecoversauniformprocedureforradioscopicexaminationofcastings.1.2Thispracticeappliesonlytoradioscopicexaminationinwhichanimageisfinallypresentedonadisplayscreen(monitor)forevaluation.Testpartacceptancemaybebasedonastaticordynamicimage.Theexaminationresultsmayberecordedforlaterreview.Thispracticedoesnotapplytofullyautomatedsystemsinwhichevaluationisperformedautomaticallybyacomputer.1.3Duetothemanycomplexgeometriesandpartconfigurationsinherentwithcastings,itisnecessarytorecognizethepotentiallimitationsassociatedwithobtainingcompleteradioscopiccoverage.Considerationshallbegiventoareaswheregeometryorpartconfigurationdoesnotallowforcompleteradioscopiccoverage.1.4Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J31
【国际标准分类号】:77_040_20
【页数】:8P.;A4
【正文语种】: