Ph Values At Various Temperature - Hanna Instruments HI 8510 Instruction Manual

pH VALUES AT VARIOUS
TEMPERATURE
Temperature has an effect on pH. The
calibration buffer solutions are effected by
temperature changes to a lesser degree than
normal solutions.
Please refer to the following chart to perform
the pH calibration:
TEMP
°C °F 4.01 6.86
0 32 4.01 6.98
5 41 4.00 6.95
10 50 4.00 6.92
15 59 4.00 6.90
20 68 4.00 6.88
25 77 4.01 6.86
30 86 4.02 6.85
35 95 4.03 6.84
40 104 4.04 6.84
45 113 4.05 6.83
50 122 4.06 6.83
55 131 4.07 6.84
60 140 4.09 6.84
65 149 4.11 6.85
70 158 4.12 6.85
For instance, if the buffer's temperature is
25°C (77°F), calibrate to read 4.01 or 7.01 or
10.01 on the display.
If the buffer's temperature is 20°C, calibrate
to read 4.00/7.03/10.06 on the display.
If the buffer's temperature is 50°C, calibrate
to read 4.06/6.98/9.82 on the display.
43
pH VALUES
7.01 9.18 10.01
7.13 9.46 10.32
7.10 9.39 10.24
7.07 9.33 10.18
7.04 9.27 10.12
7.03 9.22 10.06
7.01 9.18 10.01
7.00 9.14 9.96
6.99 9.10 9.92
6.98 9.07 9.88
6.98 9.04 9.85
6.98 9.01 9.82
6.98 8.99 9.79
6.98 8.97 9.77
6.99 8.95 9.76
6.99 8.93 9.75