Thermo Scientific Alpha pH 800, Manual

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11.2 Appendix 2
The following table shows the various pH values at different temperature of the
solution during calibration.
Temperature
(
o
C)
pH 1.68
(oxalate)
pH 4.01
(phthalate)
pH 6.86
(tetraoxalate)
pH 7.00
(neutral
phosphate)
pH 9.18
(tetra borate )
pH 10.01
(carbonate)
0 1.67 4.01 6.98 7.12 9.47 10.32
5 1.67 4.01 6.95 7.09 9.38 10.25
10 1.67 4.00 6.92 7.06 9.32 10.18
15 1.67 4.00 6.90 7.04 9.27 10.12
20 1.68 4.00 6.88 7.02 9.22 10.06
25 1.68 4.01 6.86 7.00 9.18 10.01
30 1.69 4.01 6.85 6.99 9.14 9.97
35 1.69 4.02 6.84 6.98 9.10 9.93
40 1.70 4.03 6.84 6.97 9.07 9.89
45 1.70 4.04 6.83 6.97 9.04 9.86
50 1.71 4.06 6.83 6.97 9.01 9.83
55 1.72 4.08 6.83 6.97 8.99 9.81
60 1.73 4.10 6.84 6.98 8.96 9.79
70 1.74 4.12 6.85 6.99 8.92 9.76
80 1.77 4.16 6.86 7.00 8.89 9.74
90 1.80 4.20 6.88 7.02 8.85 9.73