【英文标准名称】:StandardPracticeforRadioscopy
【原文标准名称】:放射线透视的标准实施规程
【标准号】:ASTME1255-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:
【英文主题词】:analog;detector;digital;display;examination;image;manipulator;processor;radioscopy;source;Automatedprocedures;Calibration--radiographic/radioscopicanalysisinstrumentation;Detectors;Informationstorageandretrieval;Manipulatio
【摘要】:Aswithconventionalradiography,radioscopicexaminationisbroadlyapplicabletoanymaterialorexaminationobjectthroughwhichabeamofpenetratingradiationmaybepassedanddetectedincludingmetals,plastics,ceramics,composites,andothernonmetallicmaterials.Inadditiontothebenefitsnormallyassociatedwithradiography,radioscopicexaminationmaybeeitheradynamic,filmlesstechniqueallowingtheexaminationparttobemanipulatedandimagingparametersoptimizedwhiletheobjectisundergoingexamination,orastatic,filmlesstechniquewhereintheexaminationpartisstationarywithrespecttotheX-raybeam.Thedifferentiationtosystemswithdigitaldetectorarrays(DDAs)istheuseofananalogcomponentsuchasanelectro-opticdeviceorananalogcamera.Recenttechnologyadvancesintheareaofprojectionimaging,cameratechniques,anddigitalimageprocessingprovideacceptablesensitivityforawiderangeofapplications.Ifnormalvideoratesarenotadequatetodetectfeaturesofinterestthenaveragingtechniqueswithnomovementofthetestobjectshallbeused.1.1Thispracticeprovidesapplicationdetailsforradioscopicexaminationusingpenetratingradiation.Thisincludesdynamicradioscopyandforthepurposesofthispractice,radioscopywherethereisnomotionoftheobjectduringexposure(referredtoasstaticradioscopicimaging)bothusingananalogcomponentsuchasanelectro-opticdeviceoranalogcamera.Sincethetechniquesinvolvedandtheapplicationsforradioscopicexaminationarediverse,thispracticeisnotintendedtobelimitingorrestrictive,butrathertoaddressthegeneralapplicationsofthetechnologyandtherebyfacilitateitsuse.RefertoGuidesE94andE1000,TerminologyE1316,PracticeE747,PracticeE1025,TestMethodE2597,andFed.Std.Nos.21CFR1020.40and29CFR1910.96foralistofdocumentsthatprovideadditionalinformationandguidance.1.2Thegeneralprinciplesdiscussedinthispracticeapplybroadlytopenetratingradiationradioscopicsystems.However,thisdocumentiswrittenspecificallyforusewithX-rayandgamma-raysystems.Otherradioscopicsystems,suchasthoseemployingneutrons,willinvolveequipmentandapplicationdetailsuniquetosuchsystems.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificsafetystatements,seeSection8andFed.Std.Nos.21CFR1020.40and29CFR1910.96.A1.1.1Purpose8212;ThisannexistobeusedinconjunctionwithPracticesE1255andE1742.Itpermitstheuseofandgivesguidanceontheimplementationofradioscopicexaminationformaterials,components,andassemblies,whenspecifiedinthecontractdocuments.Theradioscopicrequirementsdescribedhereinallowtheuseofradioscopyfornewapplicationsaswellastoreplaceradiographywhenexaminationcoverage,greaterthroughput,orimprovedexaminationeconomicscanbeobtained,providedasatisfactorylevelofimagequalitycanbedemonstrated.A1.1.2Application8212;Thisannexprovidesguidelinesforawrittenpracticeasrequiredin3.2and5.2.1ofPracticeE1255.ShouldtherequirementsinthisannexconflictwithanyotherrequirementsofPracticeE1255,thenAnnexA1takesprecedence.Therequirementsofthisannexareintendedtocontrolthequal......
【中国标准分类号】:N78
【国际标准分类号】:77_040_20
【页数】:11P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 驾驶员安全带 |
| 中标分类： |
航空、航天 >>
航空器及其附件 >>
生命保障系统与设备 |
| 替代情况： | HB 2-11-1976;被HB 2-11-1994代替 |
| 发布日期： | 1984-09-01 |
| 实施日期： | 1984-10-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 10页 |
适用范围
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前言
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引用标准
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所属分类： 航空 航天 航空器及其附件 生命保障系统与设备