Thermal conductivity of refrigerant 507A in gaseous state

Thermal conductivity of refrigerant 507A in gaseous state has been measured with a stationary method of coaxial cylinders in the temperatures range of 315–425 K and pressures 0.105–1.855 MPa. Estimated values of temperature, pressure, and thermal conductivity measurement errors are, respectively, ± 0.05 K, ± 3.75 kPa and ± 1.5–2.5 %. Approximation dependence for thermal conductivity in the whole studied temperature and pressure range has been obtained. Results have been compared with available literature data.