across a radiating surface, combined with ascertainment of the heat-transmission coefficient

Full Title

Measuring quantity of heat (measuring temperature by calorimetry G01K3/00 - G01K11/00; specially adapted for measuring thermal properties of materials, e.g. specific heat, heat of combustion G01N) > Measuring quantity of heat conveyed by flowing media, e.g. in heating systems (G01K17/02, G01K17/04 take precedence) > based upon measurement of temperature difference > across a radiating surface, combined with ascertainment of the heat-transmission coefficient