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ASTM E1255-2009 放射线透视的标准实施规程

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【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


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Product Code:SAE J849
Title:Connection and Accessory Locations for Towing Multiple Trailers--Truck and Bus
Issuing Committee:Truck And Bus Electrical Systems Committee
Scope:This SAE Recommended Practice establishes the recommended locations for the air brake and electrical connections for towing multiple trailers. It applies to all commercial trailers except drop frame and car haul types.【英文标准名称】:Copper-BerylliumAlloySeamlessTube
【原文标准名称】:铜铍合金无缝管
【标准号】:ASTMB643-1994
【标准状态】:作废
【国别】:美国
【发布日期】:1994
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:有色金属;合金;无缝管;铜合金;铜;无缝的;管;铍
【英文主题词】:alloys;seamlesspipes;beryllium;copper;non-ferrousmetals;pipes;copperalloys;seamless
【摘要】:
【中国标准分类号】:H62
【国际标准分类号】:77_120_30
【页数】:
【正文语种】:英语