Nova-Tech pH 110 - Manual (Page 68)

Instruction Manual CyberScan pH 11 / 110
64
14.3 Standard pH Buffers
The following table shows the various pH values at different temperature of the
solution during calibration.
Temperature
(ºC)
pH 1.68
(oxalate)
pH 4.01
(phthalate)
pH 7.00
(neutral
Phosphate)
pH 10.01
(carbonate)
pH 12.45
(Saturated
Calcium
Hydroxide
Solution)
0 1.67 4.01 7.12 10.32 13.43
5 1.67 4.01 7.09 10.25 13.21
10 1.67 4.00 7.06 10.18 13.00
15 1.67 4.00 7.04 10.12 12.81
20 1.68 4.00 7.02 10.06 12.63
25 1.68 4.01 7.00 10.01 12.45
30 1.69 4.01 6.99 9.97 12.29
35 1.69 4.02 6.98 9.93 12.13
40 1.70 4.03 6.97 9.89 11.99
45 1.70 4.04 6.97 9.86 11.84
50 1.71 4.06 6.97 9.83 11.70
55 - 4.08 6.97 9.81 -
60 - 4.10 6.98 9.79 -
70 - 4.12 6.99 9.76 -
80 - 4.16 7.00 9.74 -
90 - 4.20 7.02 9.73 -
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