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CCQM-K17
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CCQM-K17
Information
Metrology area, branch   Amount of Substance, Electrochemistry
Description   pH measurement of phthalate buffer solutions
Time of measurement   2001
Status   Approved for equivalence, Results available
Reference(s)   Metrologia, 2003, 40, Tech. Suppl., 08006
Measurand   pH 4.1 at temperature 25 °C
Parameter(s)   Temperature: 15 °C, 25 °C and 37 °C
Transfer device(s)   A phthalate buffer, containing potassium hydrogen phthalate at a molality of 0.05 mol/kg
Comparison type   Key comparison
Consultative Committee  CCQM (Consultative Committee for Amount of Substance)
Conducted by   CCQM (Consultative Committee for Amount of Substance)