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Accurate measurements of the viscosity of water in the temperature range 19.5–25.5°C

Author

Listed:
  • Berstad, D.A.
  • Knapstad, B.
  • Lamvik, M.
  • Skjølsvik, P.A.
  • Tørklep, K.
  • Øye, H.A.

Abstract

The viscosity of water has been measured with high accuracy in the temperature range 19.5–25.5°C, using an absolute oscillation viscometer. The resulting data are represented by the modified Arrhenius expression In (η/mPa s) = 1.85191 - 3201.27 K/T + 779359 K2/T2. The viscosity of water at 20°C and atmospheric pressure is 1.0006 mPa s ± 0.05% at the 68% confidence level. This value is 0.13% lower than the currently recommended value at 20°C: 1.002 ± 0.001 mPa s.

Suggested Citation

  • Berstad, D.A. & Knapstad, B. & Lamvik, M. & Skjølsvik, P.A. & Tørklep, K. & Øye, H.A., 1988. "Accurate measurements of the viscosity of water in the temperature range 19.5–25.5°C," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 151(2), pages 246-280.
    • Handle: RePEc:eee:phsmap:v:151:y:1988:i:2:p:246-280
    DOI: 10.1016/0378-4371(88)90015-5
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