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Test Method for Determining the Total Hardness of Natural and Potable Water

  • ANALYTICAL CHEMISTRY OF WATER
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Abstract

This paper presents a test method for determining the total hardness in natural and drinking waters using an indicator solution for test titration. The developed method offers a rapid and efficient procedure for assessing the total hardness across a wide range of water bodies. The relative standard deviation of a single result in determining the overall hardness does not exceed 10%. The lower limit for determining the total hardness is 1°dH/5 cm3 of the sample solution.

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REFERENCES

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Funding

The work was carried out within the framework of the project of the National Academy of Sciences of Ukraine “The Latest Approaches to Solving Chemical-Analytical Problems of Studying the Composition of Functional Materials and Quality Control of Pharmaceutical Products” (project no. 0122U002561).

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Authors and Affiliations

  1. Institute for Single Crystals, National Academy of Sciences of Ukraine, 61072, Kharkiv, Ukraine

    L. V. Gudzenko

Authors
  1. L. V. Gudzenko
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Correspondence to L. V. Gudzenko.

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The author declares that she has no conflicts of interest.

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Translated by O. Zhukova

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Cite this article

Gudzenko, L.V. Test Method for Determining the Total Hardness of Natural and Potable Water. J. Water Chem. Technol. 45, 383–387 (2023). https://doi.org/10.3103/S1063455X23040033

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  • DOI: https://doi.org/10.3103/S1063455X23040033

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