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

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Measurement Techniques Aims and scope

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.

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Authors and Affiliations

  1. Shatlygin & Co, Kharkov, Ukraine

    K. N. Firsov

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  1. K. N. Firsov
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Correspondence to K. N. Firsov.

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Translated from Izmeritel’naya Tekhnika, No. 1, pp. 64–66, January, 2017.

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Firsov, K.N. Influence of Partial Wetting on the Results of Verification of Glass Hydrometers for Ethanol. Meas Tech 60, 92–95 (2017). https://doi.org/10.1007/s11018-017-1155-x

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  • DOI: https://doi.org/10.1007/s11018-017-1155-x

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