Penn Robert W, Kearsley Elliot A
Institute for Basic Standards, National Bureau of Standards, Washington, D.C. 20234.
J Res Natl Bur Stand A Phys Chem. 1971 Nov-Dec;75A(6):553-560. doi: 10.6028/jres.075A.043.
The viscosity of a sample of di(2-ethylhexyl) sebacate has been determined by measuring the pressure at taps along a closed channel containing the flowing liquid. By means of relative viscosity measurements in conventional capillary viscometers, we are able to express our results in terms of the viscosity of water at 20 °C. We find a value of 0.010008 poise. An appendix outlines the calculation of upper and lower bounds for the geometrical flow constant.
通过测量含有流动液体的封闭通道沿线各个出口处的压力,测定了癸二酸二(2-乙基己基)酯样品的粘度。借助传统毛细管粘度计进行相对粘度测量,我们能够将结果表示为20℃时水的粘度。我们得到的值为0.010008泊。附录概述了几何流动常数上下限的计算方法。