Abstract
Gas viscosity of non-azeotoropic mixtures of R 22 and R 152a was measured with an oscillating disk viscometer of the Maxwell type at 273.15-303.15 K and pressures up to 0.7 MPa. An empirical equation was obtained for the viscosity as a function of composition, temperature and pressure. Atmospheric viscosity is found to be predicted fairly well by the Sutherland-Thiesen equation, the coefficients of which were appoximated by Brokaw's method.
