| Metrology area, Sub-field | Chemistry and Biology, Electrochemistry |
| Description | Acidity function of an unknown phthalate buffer at zero chloride molality |
| Time of measurements | 2022 |
| Status | Planned |
| Measurand | Acidity function at at zero chloride molality, pa0 (pH) Nominal value of pH ~4.01 at temperature 25 °C |
| Parameters | Temperature: 15 °C, 25 °C and 37 °C, and optional at 5 °C and 50 °C |
| Transfer device | Aqueous phthalate buffer |
| Comparison type | Key Comparison |
| Consultative Committee | CCQM (Consultative Committee for Amount of Substance) |
| Conducted by | CCQM (Consultative Committee for Amount of Substance) |
| Pilot institute |
PTB
Physikalisch-Technische Bundesanstalt Germany |
| Contact person | Frank Bastkowski |
| Pilot laboratory | |
|---|---|
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
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