Key Comparison on the pH of a Phthalate Buffer
Project Description
This key comparison is being performed to evaluate the degree of equivalence of national standard measurement procedures for the measurement of pH of phthalate buffer solutions under the umbrella of the CIPM-MRA.
The comparison is a regional, subsequent comparison of the key comparison CCQM-K91.2022. The comparison is open to the National Metrology Institutes (NMI) or Designated Institutes (DI) of member or associate states of the Meter Convention. Institutes from other regions are invited if they had registered for the original CCQM-K91.2022 but had to withdraw afterwards.
PTB (Germany) is the co-pilot laboratory and will provide the samples; NMIJ (Japan) will be the linking laboratory.