Oliveira, Carla Padrel deCaetano, Fernando J. P.Mata, José L. Correia daFareleira, João M. N. A.Wakeham, William A.2012-03-152012-03-152004Oliveira, Carla Padrel de [et al.] - Viscosity measurements of liquid toluene at low temperatures using a dual vibrating-wire technique. "International Journal of Thermophysics" 8Em linha]. ISSN 0195-928X (Print) 1572-9567 (Online). Vol. 25, nº 1 (2004), p. 1-110195-928X1572-9567http://hdl.handle.net/10400.2/2077A recently developed dual vibrating-wire technique has been used to perform viscosity measurements of liquid toluene in the temperature range 213 K ≤ T ≤ 298 K, and at pressures up to approximately 20 MPa. The results were obtained by operating the vibrating-wire sensor in both forced and free decay modes. The estimated precision of the viscosity measurements, in either mode of operation, is ±0.5%, for temperatures above or equal to 273 K, increasing with decreasing temperature up to ±1% at 213 K. The corresponding overall uncertainty is estimated to be within ±1% and ±1.5%, respectively.engDual vibrating-wire techniqueLow temperatureTolueneViscosityjournal article