您的位置: 标准下载 » 协会标准 » ASTM 美国材料与试验协会 »

ASTM E1255-2009 放射线透视的标准实施规程

作者:标准资料网 时间:2024-05-26 16:33:33  浏览:8839   来源:标准资料网
下载地址: 点击此处下载
【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


下载地址: 点击此处下载
【英文标准名称】:Textiles-Fabrics-Determinationofwidthandlength
【原文标准名称】:纺织物.织物.测量宽度和长度
【标准号】:BSISO22198-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-10-31
【实施或试行日期】:2006-10-31
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:布;定义;尺寸测量;尺寸;织物;长度;线性测量;材料试验;测量;无纺织织物;试验设备;试验报告;试验;纺织试验;纺织材料;宽度;机织物
【英文主题词】:Cloth;Definition;Definitions;Dimensionalmeasurement;Dimensions;Fabrics;Length;Linearmeasurement;Materialstesting;Measurement;Non-wovenfabrics;Testequipment;Testreports;Testing;Textiletesting;Textiles;Width;Wovenfabrics
【摘要】:ISO22198:2006specifiesamethodforthedeterminationoflengthandwidthoftextilefabricsthatareinatension-freerelaxedstate.Thetestisapplicabletotextilefabricsoffullwidth,foldedlengthwisedownthemiddle,orintubularform,butnolongerthan100m.ISO22198:2006doesnotspecifyamethodtodetermineordescribeconstructiondefectsorotherdefects.Itisnotapplicabletocoatedfabrics.
【中国标准分类号】:W04
【国际标准分类号】:59_080_30
【页数】:12P;A4
【正文语种】:英语


【英文标准名称】:PracticeforConductingMixedFlowingGas(MFG)EnvironmentalTests
【原文标准名称】:处理混合流动气体(MFG)环境试验实施规范
【标准号】:ANSI/ASTMB827-1996
【标准状态】:作废
【国别】:美国
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:气体;电导性;环境试验
【英文主题词】:Conducting;Conductivity;Environmentalaspects;Environmentaltesting;Environmentaltests;Flowing;Gases;Mixedgas
【摘要】:
【中国标准分类号】:G86
【国际标准分类号】:71_100_20
【页数】:
【正文语种】:英语