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November 1, 1971Journal of Research of the National Bureau of Standards Section A Physics and Chemistry7 citationsOpen Access

An absolute determination of viscosity using channel flow

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Abstract

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.

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A 1971 study studied this question.

synapsesocial.com/papers/6a836d99428d7ba9909eee52https://doi.org/10.6028/jres.075a.043
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