eutech-instruments cyberscan ph 110 phmvrs232 meter User Manual
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.
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
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
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 -