Mj. Assael et Sk. Polimatidou, MEASUREMENTS OF THE VISCOSITY OF REFRIGERANTS IN THE VAPOR-PHASE, International journal of thermophysics, 18(2), 1997, pp. 353-366
Measurements of the viscosity of refrigerants R124, R125, R134a, and R
152a in the vapor phase are presented. The measurements, performed in
a new vibrating-wire instrument, cover a temperature range from 273 to
333 K from about atmospheric pressure up to below the saturation pres
sure. The uncertainty of the reported values is estimated to be better
than +/- 1%. Comparison with measurements of other investigators reve
als a lack of reliable data in the vapor region for these compounds.