UNE-EN 13068-3:2002 NON-DESTRUCTIVE TESTING - RADIOSCOPIC TESTING - PART 3: GENERAL PRINCIPLES OF RADIOSCOPIC TESTING OF METALLIC MATERIALS BY X-AND GAMMA RAYS.
2002UNE-EN 13068-3:2002 NON-DESTRUCTIVE TESTING - RADIOSCOPIC TESTING - PART 3: GENERAL PRINCIPLES OF RADIOSCOPIC TESTING OF METALLIC MATERIALS BY X-AND GAMMA RAYS.