Oliveira, Carla Padrel deWakeham, William A.2012-05-162012-05-161993Oliveira. Carla Padrel de; Wakeham, William A. - The viscosity of R32 and R125 at saturation. "International Journal of Thermophysics" [Em linha]. ISSN 0195-928X (Print) 1572-9567 (Online). Vol. 14, nº 6 (1993), p. 1131-11430195-928X1572-9567http://hdl.handle.net/10400.2/2114This paper reports new measurements of the viscosity of R32 and R125, in both the liquid and the vapor phase, over the temperature range 220 to 343 K near the saturation line. The measurements in both liquid and vapor phases have been carried out with a vibrating-wire viscometer calibrated with respect to standard reference values of viscosity. It is estimated that the uncertainty of the present viscosity data is one of 0.5-1%, being limited partly by the accuracy of the available density data. The experimental data have been represented by polynomial functions of temperature for the purposes of interpolation.engRefrigerantsViscosityR32R125journal article