Non-destructive testing; general principles for the radiographic examination of metallic materials using X-rays and gamma-rays; German version EN 444:1994— 12 стр.
Non-destructive testing - Radiographic testing of metallic materials using film and X- or gamma rays - Basic rules (ISO 5579:2013); German version EN ISO 5579:2013— 20 стр.
Non-destructive testing - Radiographic testing of metallic materials using film and X- or gamma rays - Basic rules (ISO 5579:2013); German version EN ISO 5579:2013— 20 стр.