NAVI D-25 Instruction Manual page 189

7 Reference
7.1 pH measurement
178
pH values of pH 7 and pH 10 standard solutions
at various temperatures (US-standard settings)
pH 7
standard
Temp.
solution
(°C)
Neutral
phosphate
0
5
10
15
20
25
30
35
40
45
Calibration is performed using Nernst's equation with the
above values.
pH 10
standard
solution
Carbonate
7.119 10.318
7.086 10.245
7.058 10.178
7.035 10.117
7.015 10.061
7.000 10.011
6.988 9.965
6.979 9.925
6.973 9.888
6.969 9.856
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