ASTM_E_2662_-_15.pdf

Designation:E266215Standard Practice forRadiographic Examination of Flat Panel Composites andSandwich Core Materials Used in Aerospace Applications1This standard is issued under the fixed designation E2662;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 indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This practice is intended to be used as a supplement toPractices E1742,E1255,E2033,and E2698.1.2 This practice describes procedures for radiographicexamination of flat panel composites and sandwich corematerials made entirely or in part from fiber-reinforced poly-mer matrix composites.Radiographic examination is:a)FilmRadiography(RT),b)Computed Radiography(CR)withImaging Plate,c)Digital Radiography(DR)with DigitalDetector Arrays(DDA),and d)Radioscopic(RTR)Real TimeRadiography with a detection system such as an ImageIntensifier.The composite materials under consideration typi-cally contain continuous high modulus fibers(20 GPa),suchas those listed in 1.4.1.3 This practice describes established radiographic exami-nation methods that are currently used by industry that havedemonstrated utility in quality assurance of flat panel compos-ites and sandwich core materials during product process designandoptimization,processcontrol,aftermanufactureinspection,in service examination,and health monitoring.Additional guidance can be found in E2533,Guide for Non-destructive Testing of Polymer Matrix Composites Used inAerospace.1.4 This practice has utility for examination of flat panelcomposites and sandwich constructions containing,but notlimited to,bismaleimide,epoxy,phenolic,poly(amide imide),polybenzimidazole,polyester(thermosettingandthermoplastic),poly(ether ether ketone),poly(ether imide),polyimide(thermosetting and thermoplastic),poly(phenylenesulfide),or polysulfone matrices;and alumina,aramid,boron,carbon,glass,quartz,or silicon carbide fibers.Typical as-fabricated geometries include uniaxial,cross ply and angle plylaminates;as well as honeycomb core sandwich constructions.1.5 This practice does not specify accept-reject criteria andis not intended to be used as a means for approving flat panelcomposites or sandwich core materials for service.1.6 To ensure proper use of the referenced standards,thereare recognized nondestructive testing(NDT)specialists thatare certified according to industry and company NDT specifi-cations.It is recommended that a NDT specialist be a part ofany composite component design,quality assurance,in servicemaintenance or damage examination.1.7 This standard does not purport to address all of thesafety concerns,if any,associated with 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:2C274 Terminology of Structural Sandwich ConstructionsD1434 Test Method for Determining Gas Permeability Char-acteristics of Plastic Film and SheetingD3878 Terminology for Composite MaterialsE94 Guide for Radiographic ExaminationE543 Specification for Agencies 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(IQI)Used for RadiologyE1165 Test Method for Measurement of Focal Spots ofIndustrial X-Ray Tubes by Pinhole ImagingE1255 Practice for RadioscopyE1309 GuideforIdentificationofFiber-ReinforcedPolymer-Matrix Composite Materials in Databases1This 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 Gamma)Method.Current edition approved June 1,2015.Published July 2015.Originally approvedin 2009.Last previous edition approved as E266215.DOI:10.1520/E2662-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 E1316 Terminology for Nondestructive ExaminationsE1471 Guide for Identification of Fibers,Fillers,and CoreMaterials in Computerized Material Property DatabasesE1742 Practice for Radiographic ExaminationE1815 Test Method for Classification of Film Systems forIndustrial RadiographyE1817 Practice for Controlling Quality of Radiological Ex-amination by