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Measurement Techniques
Published in: Measurement Techniques 1/2017

10-05-2017

Influence of Partial Wetting on the Results of Verification of Glass Hydrometers for Ethanol

Author: K. N. Firsov

Published in: Measurement Techniques | Issue 1/2017

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Abstract

We consider the influence of the capillary properties of fluids during verification of working hydrometers for ethanol at zero scale corresponding to distilled water. It is shown that there is an essential difference in the correction values obtained at that point when using testing methods of comparison and hydrostatic weighing. It was found that the wetting contact angle at zero depends on the diameter of the rod and significantly affects the discrepancy between the results of checking the hydrometer using these two methods. We obtain the dependence of the wetting contact angle on the rod diameter.
previous article Metrological Support of Liquid and Aerosol Particle Counters
next article Determination of the Temperature Dependence of the Shielding of Water Protons and a Method for Estimating the Temperature of Living Tissues

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Literature
1.
P 50.2.041–2004, Glass Hydrometers. Methods of Verification.
2.
GOST 8.428–81, GSI. Hydrometers. The Values of Liquid Surface Tension Coefficients.
3.
GOST 18481–81, Hydrometers and Glass Cylinders. General Technical Specifications.
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S. I. Gauzner, S. S. Kivilis, A. P. Osokina, and A. N. Pavlovsky, Measurement of Mass, Volume, and Density: Textbook, Izd. Standartov, Moscow (1982).
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V. M. Gotovtsev and A. N. Rumyantsev, “A mechanism for spreading a liquid on a solid surface,” Fund. Issled., No. 9–2, 312–317 (2014).
6.
M. N. Mohamed, M. A. Bayoumi, A. Eltawil Alaaeldin, and A. E. Abuelezz, “Design and validation of an automated hydrometers calibration system,” Int. J. Innov. Res. Sci., Eng. Technol., 3, Iss. 5, 12735–12741 (2014).
7.
J. D. Wright, V. E. Bean, and J. Aguilera, “NIST calibration services for hydrometers,” NIST, No. 8 (2008).
8.
P. A. Rehbinder, “Surface phenomena in disperse systems,” Coll. Chem., 300–332 (1978).
9.
B. D. Summ, “Wetting hysteresis,” Soros. Obraz. Zh., No. 7, 98–102 (1999).
10.
A. Afre Rakesh, Hayashi Yasuhiko, and Soga Tetsuo, “Enhanced photovoltaic device performance upon modification of indium tin oxide coated glass by liquid nitrogen treatment,” J. Phys. D: Appl. Phys., 42, No. 4 (2009).
Metadata
Title
Influence of Partial Wetting on the Results of Verification of Glass Hydrometers for Ethanol
Author
K. N. Firsov
Publication date
10-05-2017
Publisher
Springer US
Published in
Measurement Techniques / Issue 1/2017
Print ISSN: 0543-1972
Electronic ISSN: 1573-8906
DOI
https://doi.org/10.1007/s11018-017-1155-x

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