Measurement of ultraviolet radiation is a common issue in many fields of applications. The easy way to approach to ultraviolet measurement is by using broad band probes. Their use should be straightforward, but their calibration is not always simple to be applied in small industrial, test and research laboratories. The paper presents the two main approaches to the calibration of ultraviolet probes, with their related limitation on their use and difficulties in the extension of the calibration to the cases considering radiating source different from the one used in the calibration. Starting from the approach applied at metrological laboratories, an attempt to overcome this problem is presented which takes advantage of the information commonly provided by manufacturer on data sheets of probes and sources, i.e. data easily achievable by all laboratories.