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ASTM_E_1734_-_15.pdf

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1、Designation:E173415Standard Practice forRadioscopic Examination of Castings1This standard is issued under the fixed designation E1734;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses i

2、ndicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers a uniform procedure for radio-scopic examination of castings.Radioscopic examination ofweldments can be found in E1416.1.2 This practice appl

3、ies only to radioscopic examination inwhich an image is finally presented on a display screen(monitor)for evaluation.Test part acceptance may be based ona static or dynamic image.The examination results may berecorded for later review.This practice does not apply to fullyautomated systems in which e

4、valuation is performed automati-cally by a computer.1.3 Due to the many complex geometries and part configu-rations inherent with castings,it is necessary to recognize thepotential limitations associated with obtaining complete radio-scopic coverage.Consideration shall be given to areas wheregeometr

5、y or part configuration does not allow for completeradioscopic coverage.1.4 The values stated in inch-pound units are to be regardedas the standard.The SI units given in parentheses are forinformation only.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with

6、 its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E94 Guide for Radiographic ExaminationE543 Specification for Agencies

7、Performing NondestructiveTestingE747 Practice for Design,Manufacture and Material Group-ing Classification of Wire Image Quality Indicators(IQI)Used for RadiologyE1000 Guide for RadioscopyE1025 Practice for Design,Manufacture,and MaterialGrouping Classification of Hole-Type Image Quality In-dicators

8、(IQI)Used for RadiologyE1165 Test Method for Measurement of Focal Spots ofIndustrial X-Ray Tubes by Pinhole ImagingE1255 Practice for RadioscopyE1316 Terminology for Nondestructive ExaminationsE1411 Practice for Qualification of Radioscopic SystemsE1416 Test Method for Radioscopic Examination of Wel

9、d-mentsE1453 Guide for Storage of Magnetic Tape Media thatContains Analog or Digital Radioscopic DataE1475 Guide for Data Fields for Computerized Transfer ofDigital Radiological Examination DataE1647 Practice for Determining Contrast Sensitivity in Ra-diologyE1742 Practice for Radiographic Examinati

10、onE2002 Practice for Determining Total Image Unsharpness inRadiologyE2903 Test Method for Measurement of the Effective FocalSpot Size of Mini and Micro Focus X-ray Tubes2.2 ASNT Standards:3ASNT SNT-TC-1A Personnel Qualification and Certifica-tion in Nondestructive TestingANSI/ASNT CP-189 Personnel Q

11、ualification and Certifica-tion in Nondestructive Testing2.3 Military Standard:NAS-410 NAS Certification and Qualification of Nonde-structive Personnel(Quality Assurance Committee)43.Terminology3.1 DefinitionsDefinitions of terms applicable to thispractice may be found in Terminology E1316.4.Signifi

12、cance and Use4.1 The requirements in this practice are intended to controlthe quality of the radioscopic images to produce satisfactory1This practice is under the jurisdiction of ASTM Committee E07 on Nonde-structive Testing and is the direct responsibility of Subcommittee E07.01 onRadiology(X and G

13、amma)Method.Current edition approved June 1,2015.Published July 2015.Originally approvedin 1995.Last previous edition approved in 2009 as E1734-09.DOI:10.1520/E1734-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Boo

14、k of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from TheAmerican Society for Nondestructive Testing(ASNT),P.O.Box 28518,1711 Arlingate Ln.,Columbus,OH 43228-0518.4Available from Aerospace Industries Association of America,Inc.1250 EyeS

15、treet N.W.,Washington,DC 20005.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 and consistent results.This practice is not intended for con-trolling the acceptability of the casting.The radioscopicmethod may be used for detecting volumetr

16、ic discontinuitiesand density variations that are within the sensitivity range ofthis practice.The dynamic aspects of radioscopy are useful formaximizing defect response.5.Basis of Application5.1 The following items shall be agreed upon between thepurchaser and the supplier:5.1.1 Nondestructive Testing Agency EvaluationIf speci-fied in the contractual agreement,nondestructive testing(NDT)agencies shall be qualified and evaluated as described inPractice E543.The applicable edition of Practice E54

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