Degradation of colour temperature characteristic of thermographic sheets of Czechoslovak provenance provoked by UV radiation.

The presented study deals with the changes of thermooptic qualities of thermographic sheet, provoked by UV irradiation. The thermographic sheets of inland provenance produced by are possible to use in medical coloured surface thermography. The method adapted for measuring gives quite reproducible results and for its relative simplicity it is convenient for medical workplaces where the surface thermography and the UV radiation sources are in use. The knowledge of degradation influence of UV irradiation on the sheets could be useful in any medical workplaces engaged with thermography.