Hanna Instruments HI 9910 - Manual (Page 30)

30
Please refer to the following chart for a more accurate pH calibration:
For instance, if the buffer temperature is 25°C (77°F), calibrate
the meter to read 4.01, 7.01 or 10.01 on the display.
If the buffer temperature is 20°C, calibrate it to 4.00, 7.03 or
10.06.
If the buffer temperature is 50°C, calibrate it to 4.06, 6.98 or
9.82.
pH pH pH pH pH VALUES AT VARIOUS VALUES AT VARIOUS VALUES AT VARIOUS VALUES AT VARIOUS VALUES AT VARIOUS
TEMPERATURES TEMPERATURES TEMPERATURES TEMPERATURES TEMPERATURES
TEMP pH VALUES
°C °F 4.01 6.86 7.01 9.18 10.01
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
32
41
50
59
68
77
86
95
104
113
122
131
140
149
158
4.01
4.00
4.00
4.00
4.00
4.01
4.02
4.03
4.04
4.05
4.06
4.07
4.09
4.11
4.12 6.98
6.95
6.92
6.90
6.88
6.86
6.85
6.84
6.84
6.83
6.83
6.84
6.84
6.85
6.85 7.13
7.10
7.07
7.04
7.03
7.01
7.00
6.99
6.98
6.98
6.98
6.98
6.98
6.99
6.99 9.46
9.39
9.33
9.27
9.22
9.18
9.14
9.10
9.07
9.04
9.01
8.99
8.97
8.95
8.93 10.32
10.24
10.18
10.12
10.06
10.01
9.96
9.92
9.88
9.85
9.82
9.79
9.77
9.76
9.75