Keywords:
Arc fusion welding, Arc welding, CR, Data storage, Defects, Definitions, Digital, Dimensions, Error checking, Error detection, Image quality, Image quality classes, Imperfection, Imperfections, Longitudinal flaws, Non-destructive testing, Permissibility, Radiographic film, Radiographic testing, Seamed pipes, Specification (approval), Steel pipes, Steel tubes, Steels, Submerged arc welding, Testing, Verification, Weld seam testing, Welding, Welds, X-ray technique, X-ray testing