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Comparisons of working pH standards of national metrological institutes in COOMET

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Measurement Techniques Aims and scope

Results of comparisons of working pH standards of national metrological institutes that are members of COOMET are presented. Working pH standards composed of secondary transducers and measurement (glass) electrodes and comparison (chlorosilver) electrodes are used for the comparisons. The results show that the overwhelming majority of laboratories that participated in the comparisons present data on pH measurements that possess deviations from the mean that do not exceed ±0.01 pH, which corresponds to the declared measurement uncertainty.

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References

  1. R. Beits, Determination of pH. Theory and Practice [Russian translation], Khimiya, Leningrad (1968).

    Google Scholar 

  2. “Measurement of pH. Definition, standards and procedures (UPAC Recommendations 2002),” Pure Appl. Chem., 74, 2169 (2002).

  3. State Standard GOST 8.134-98, GSI. pH Scale of Aqueous Solutions [in Russian].

  4. A. S. Doynikov et al., “Comments on the introduction of inter-governmental standard All-Russia State Standard 8.134-98, pH Scale of Aqueous Solutions,” Elektrokhimiya, 36, No. 3, 374 (2000).

    Google Scholar 

  5. N. N. Zdorikov et al., “Comparison of the primary method for pH measurement of the VNIIFTRI and PTB,” Metrologiya, 35, 781 (1998).

    Article  ADS  Google Scholar 

  6. State Standard GOST 8.027-2001, GSI. State Accuracy Chart for Instruments for the Measurement of Constant Electrical Voltage and EMF [in Russian].

  7. Handbook on the Expression of Measurement Uncertainty [in Russian], VNIIM im D. I. Mendeleeva, St. Petersburg (1999).

  8. State Standard GOST 8.120-99, GSI. State Accuracy Chart for Instruments for pH Measurement [in Russian].

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Authors and Affiliations

  1. All-Russia Research Institute of Physicotechnical and Radio Engineering Measurements (VNIIFTRI), Mendeleevo, Russia

    O. V. Karpov, V. D. Kutovoy, V. A. Zvezdina, I. A. Lukashov & M. V. Kazakova

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  1. O. V. Karpov
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  2. V. D. Kutovoy
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  3. V. A. Zvezdina
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  4. I. A. Lukashov
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  5. M. V. Kazakova
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Correspondence to O. V. Karpov.

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Translated from Izmeritel’naya Tekhnika, No. 1, pp. 27–33, January, 2010.

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Karpov, O.V., Kutovoy, V.D., Zvezdina, V.A. et al. Comparisons of working pH standards of national metrological institutes in COOMET. Meas Tech 53, 40–50 (2010). https://doi.org/10.1007/s11018-010-9456-3

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  • DOI: https://doi.org/10.1007/s11018-010-9456-3

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