Second-class working standards for pH. Features of use and ways of development

V.A. Zvezdina, S.V. Prokunin, I.V. Morozov

Al’manac of Modern Metrology № 1 (6) 2016, pages 64–65

This work is devoted to metrological support of the pH scale using working standards of the 2nd category that are designed in compliance with GOST 8.120, for the verification and calibration of pH working standards of 3rd grade and working measuring instruments – pH meters and measuring electrodes, and when the control errors of the measuring techniques the pH of the liquid media.

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