IEC 61223-2-7:1999

Describes a method to check, in terms of functional parameters, that the constancy of the quality of images produced by intra-oral dental X-ray equipment is maintained after installation, calibration and adjustment have been carried out. This standard defines: - the functional parameters, which describe the performance of X-ray equipment for intra-oral dental radiographic examination; - methods of checking, whether variations in measured functional parameters meet established criteria, in order to ensure that the conditions for adequate imaging performance are maintained, while unnecessary irradiation of the patient is avoided.