【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: | 非蒸散型吸气剂吸气性能测试方法 |
英文名称: | Test method for gettering properties of non-evaporable getter |
中标分类: |
电子元器件与信息技术 >>
电子设备专用材料、零件、结构件 >>
电子技术专用材料 |
ICS分类: |
|
替代情况: | 被GB/T 25497-2010代替 |
发布部门: | 国家标准化管理委员会 |
发布日期: | 1988-06-25 |
实施日期: | 1988-01-02 |
首发日期: | 1988-06-25 |
作废日期: | 2011-05-01 |
主管部门: | 国家标准化管理委员会 |
归口单位: | 全国半导体材料和设备标准化技术委员会 |
起草单位: | 电子部741厂 |
出版社: | 中国标准出版社 |
出版日期: | 1988-01-02 |
页数: | 5页 |
适用范围
本标准规定了非蒸散型吸气剂吸气性能的测试方法,适用于蒸散型吸气剂产品性能的测试。测试方法应符合GB 9506.1《吸气剂性能测试方法通则》中的有关规定。
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所属分类: 电子元器件与信息技术 电子设备专用材料 零件 结构件 电子技术专用材料