ASTM Standard Test Methods for Radiology (E07.01)

E1032 Standard Test Method for Radiographic Examination of Weldments
E1735 Standard Test Method for Determining Relative Image Quality of Industrial Radiographic Film Exposed to X-Radiation from 4 to 25 MeV
E1695 Standard Test Method for Measurement of Computed Tomography (CT) System Performance
E1815 Standard Test Method for Classification of Film Systems for Industrial Radiography
E1935 Standard Test Method for Calibrating and Measuring CT Density
E1114 Standard Test Method for Determining the Focal Size of Iridium-192 Industrial Radiographic Sources
E1165 Standard Test Method for Measurement of Focal Spots of Industrial X-Ray Tubes by Pinhole Imaging
E2903 Test Method for Measurement of the Effective Focal Spot Size of Mini and Micro Focus X-Ray Tubes

Hint: E1735 is the high energy version of E746 - and E746 is titled to be a practice. As the precision and bias statement is missing, the ballot November 2019 showed a version with a change in the title
Standard Practice for Determining Relative Image Quality Response of Industrial Radiographic Imaging Systems from 4 to 25 MeV