V.I. Dobrovolsky, S.V. Prokunin

Al’manac of Modern Metrology № 1 (17) 2019, pages 72–78

The article is devoted to metrological assurance of hydrogen exponent (pH) in aqueous solutions. The article considers metrological works, including participation in international comparisons, at the State primary standard (SPS) of the pH indicator of hydrogen ions in aqueous solutions of GET 54-2011.

Key words: primary standard, hydrogen exponent, pH, international comparisons of standards, ionometry.

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