ÖNORM EN 584-1

The purpose of this standard is to fix the performance of film systems. This standard is applicable for the classification of film systems in combination with specified lead screens for industrial radiography (non-destructive testing). This standard is intended to assure that the image quality of radiographs - as far as this is influenced by the film system - is in conformity with the requirements of European Standards such as EN 444, EN 1435 and EN 12681. This European Standard does not apply to the classification of films used with fluorescent intensifying screens. The measurement of film systems in this standard is restricted to a selected radiation quality to simplify the procedure. The properties of films will change with radiation energy but not the ranking of film system quality. Additional methods for evaluating the photographic process are described in EN 584-2 by which the performance of film systems can be controlled under the conditions given in industry.