Vb. Borisov et al., GENERAL-PURPOSE SEMIAUTOMATIC APPARATUS FOR MEASURING THE VISCOSITY AND DENSITY OF LIQUIDS, Instruments and experimental techniques, 37(3), 1994, pp. 368-373
The paper describes an apparatus for measuring the viscosity and densi
ty of liquids. Using modified magnetic-suspensions and falling-slug me
thods, the apparatus can operate at a pressure of 0.1 Pa to 300 MPa in
a temperature range of 100 to 500-degrees-K. The maximum viscosity er
ror under the operating conditions is less than 1.5%, the density erro
r is 0.15%.