Ap. Ershov et al., EFFECT OF THE CONICITY OF CAPILLARIES ON VISCOSITY MEASUREMENT, Colloid journal of the Russian Academy of Sciences, 59(5), 1997, pp. 561-565
A possibility for using tapered capillaries for measuring viscosity wa
s experimentally and theoretically investigated. It was demonstrated t
hat even the small conicity of capillaries may substantially affect me
asurement results. Formulas were proposed, allowing for the correct an
alysis of the measurement results in tapered capillaries.