2020
DOI: 10.1088/0026-1394/58/1a/08003
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Final report on APMP.QM-K18.2016 key comparison on pH measurement of carbonate buffer

Abstract: Main text This key comparison is being performed to evaluate the degree of equivalence of measurement procedures to support the participants' claims of Calibration and Measurement Capabilities (CMCs) and to evaluate the capabilities of participants for the determination of the pH of carbonate buffer solutions. This is the fourth APMP key comparison on pH measurement following APMP.QM-K9/P16 (phosphate), APMP.QM-K19/P25 (borate) and APMP.QM-K91/P29 (phthalate). The r… Show more

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“…One more calibration and measurement capability (CMC) was approved in the database of BIPM [5] for (10.01 -10.02) pH with an absolute extended uncertainty -Uabs.= 3.9E-3, with the coverage factor k=2, according to the results of the participation of the electrochemical laboratory of the NIO-6 in key comparison organized by the Working Group on Electrochemical Analysis (EAWG) of the BIPM Consultative Committee for Amount of Substance: Metrology in Chemistry and Biology (CCQM) CCQM-K18.2016 Key comparison on carbonate buffer [6].…”
Section: Metrological Characteristics Of the Improved Standard Arementioning
confidence: 99%
“…One more calibration and measurement capability (CMC) was approved in the database of BIPM [5] for (10.01 -10.02) pH with an absolute extended uncertainty -Uabs.= 3.9E-3, with the coverage factor k=2, according to the results of the participation of the electrochemical laboratory of the NIO-6 in key comparison organized by the Working Group on Electrochemical Analysis (EAWG) of the BIPM Consultative Committee for Amount of Substance: Metrology in Chemistry and Biology (CCQM) CCQM-K18.2016 Key comparison on carbonate buffer [6].…”
Section: Metrological Characteristics Of the Improved Standard Arementioning
confidence: 99%