Abstract
A summary of the first CCQM-K9 key international comparisons of pH measurements to assess the level of the national standards of ten countries is presented. It is shown that there is good agreement between the results obtained within the limits of the measurement uncertainty declared by the participants.
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REFERENCES
W. Richter and P. Spitzer, CCQM Discussion Paper on pH Measurements, Sevres 9/II (1999).
“The standard base of Russia,” Izmer. Tekh., No. 10, 3 (1999).
Metrologia, 33, 95 (1996).
Metrologia, 34, 375 (1996).
Metrologia, 37, 85 (2000).
R. G. Bates and E. Guggenheim, Pure and Appl. Chem., 1, 163 (1960).
A. K. Covington, R. G. Bates, and R. A. Durst, Pure and Appl. Chem., 57, No. 3, 531 (1985).
O. V. Karpov, I. I. Maksimov, and A. L. Seifer, Izmer. Tekh., No. 11, 59, (2000).
M. J. T. Milton and R. I. Wielgosz, Rapport 13-e session, Sevres, 08-09/IX (1998).
N. N. Zdorikov et al, Izmer. Tekh., No. 12, 51 (1997).
Y. C. Wu, W. F. Koch, and R. A. Durst, NBS Special Publ., Washington DC, N260-53 (1988).
Guide Exp. Uncertainty in Measurement. Inter. Organiz. Standard, Geneva (1993).
R. Gary and R. G. Bates, J. Research NBS, 65A, 495 (1961).
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Doinikov, A.S., Zdorikov, N.N., Karpov, O.V. et al. The Results of the CCQM-K9 Key International Comparisons of National Standards of pH Measurements. Measurement Techniques 45, 214–222 (2002). https://doi.org/10.1023/A:1015560326186
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DOI: https://doi.org/10.1023/A:1015560326186