Radiographic Films Testing Technique

The paper considers European norms EN 584-1:2006 which divide radiographic films into six classes. The important problem is to rank a radiographic film to a particular class according to a suitable technique. This technique allows determining the main characteristics of the radiographic films, such as sensitivity to radiation, width (by a characteristic curve, which is optical density vs. relative radiation dose logarithm), and acutance (according to a duplex two-wire image quality indicator. The article presents the main steps of both radiographic film testing and ranking to classes C1...C6.

References

[1] Kablov E.N. Aerospace Material Science. Vse materialy. Entsiklopedicheskiy spravochnik [All Materials. Encyclopedic Reference Book], 2008, no. 3, pp. 2-14 (in Russ.).

[2] Kablov E.N., Petrushin N.V., Svetlov I.L., Demonis I.M. Casting Nickel Heat-Resistant Alloys for Advanced Gas Turbine Engines. Tekhnologiya legkikh splavov [Technology of Light Alloys], 2007, no. 2, pp. 6-16 (in Russ.).

[3] Kablov E.N. Strategic Directions of Material Development and Processing Technologies for the Period up to 2030. Aviatsionnye materialy i tekhnologii [Aviation Materials and Technologies], 2012, no. 8, pp. 7-17 (in Russ.).

[4] Kablov E.N., Morozov G.A., Krutikov V.N., Muravskaya N.P. Certification of Standard Samples of Complex Alloys Using Reference. Aviatsionnye materialy i tekhnologii [Aviation Materials and Technologies], 2012, no. 2, pp. 9-11 (in Russ.).

[5] Kablov E.N., Petrushin N.V., Svetlov I.L., Demonis I.M. Casting Nickel Heat-Resistant Alloys of New Generation. Aviatsionnye materialy i tekhnologii [Aviation Materials and Technologies], 2012, no. 8, pp. 36-51 (in Russ.).

[6] EN 444:2010 Non-Destructive Testing. General Principles of Radiographic Testing Metals Using X-Ray and Gamma Radiation.

[7] BS EN 584-1:2009 Non-Destructive Testing. Films for Industrial Radiography. Part 1: Classification of Film Systems for Industrial Defectoscopy.

[8] EN 462-1:2009 Non-Destructive Testing. Radiography Image Quality. Part 1: Image Quality Indicators (Wire-Like), the Determination of the Image Quality. Authentic Translation. European Standards Institute. Stassart 36, V 1050 Bryussel’.

[9] Dobromyslov V.A. Radiatsionnye metody nerazrushayushchego kontrolya [Radiation Methods of Nondestructive Testing]. Moscow, Mashinostroenie Publ., 1999. 104 p.

[10] SosninF.R. Nerazrushayushchiy kontrol’: Spravochnik. V 7 t. T. 1. Kn. 1. Vizual’nyy i izmeritel’nyy kontrol’. Kn. 2. Radiatsionnyy kontrol’ [Non-Destructive Testing: Handbook. In 7 vol. Vol. 1. Visual Inspection and Control by Measurement. Vol. 2. Radioactive Examination]. Moscow, Mashinostroenie Publ. 2006. 560 p.

[11] Stepanov A.V., Kosarina E.I., Savvina N.A. Radiographic Films RT-K and RT-7T. The Results of Their Tests. Aviatsionnye materialy i tekhnologii [Aviation Materials and Technologies], 2012, no. 1, pp. 37-42 (in Russ.).

[12] Stepanov A.V., Kosarina E.I., Savvina N.A. Development of the Techniques for Testing the Radiographic Films to Determine the Feasibility of their Use in Defectoscopy. Kontrol’. Diagnostika [Testing. Diagnostics], 2011, no. 12, pp. 6567 (in Russ.).

[13] Stepanov A.V. Methods of X-Ray Examination in Aircraft Engines Manufacture. Aviatsionnye materialy i tekhnologii [Aviation Materials and Technologies], 2010, no. 3, pp. 28-32 (in Russ.).

[14] Kosarina E.I., Mikhaylova N.A., Demidov A.A., Turbin E.M. X-Ray Examination of Large-Sized Complex Shape Castings of "Silumin" Alloy Group. Aviatsionnye materialy i tekhnologii [Aviation Materials and Technologies], 2013, no. 2, pp. 5558 (in Russ.).

[15] Stepanov A.V., Kosarina E.I., Savvina N.A. Comparison of X-Ray Examination Requirements and Radiographs Quality in European Norms and Russian Standards. Vestnik MEI [Bull. of the MPEI], 2011, no. 4, pp. 85-89 (in Russ.).

[16] Kosarina E.I., Stepanov A.V. X-Ray Non-Destructive Testing Requirements in the Russian Standards and International Standards. Kommentarii k standartam, TU, sertifikatam [Comments to the Standards, Specifications, Certificates], 2013, no. 9, pp. 2-7 (in Russ.).

[17] EN 462-5:2009 Non-Destructive Testing. Radiography Image Quality. Part 5: Image Quality Indicators (of Two Wire Type), the Determination of the Total Amount of Image Blurring. European Standards Institute. Stassart 36, V 1050 Bryussel’.