This International Standard specifies the performance and some related constructional requirements of diagnostic dosimeters, as defined in 3.1, intended for the measurement of air kerma, air kerma length or air kerma rate, in photon radiation fields used in radiography, including mammography, radioscopy and computed tomography (CT), for X-rays with generating potentials not greater than 150 kV.

This International Standard is applicable to the performance of dosimeters with ionization chambers and/or semi-conductor detectors as used in X-ray diagnostic imaging.