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pH VALUES AT VARIOUS TEMPERATURES
Temperature has a significant effect on pH . The calibration
buffer solutions are effected by temperature changes to a
lesser degree than normal solutions .
For manual temperature calibration please refer to the
following chart:
TEMP
°C
°F
0
32
5
41
10
50
15
59
20
68
25
77
30
86
35
95
40
104
45
113
50
122
55
131
60
140
65
149
70
158
For instance, if the buffer temperature is 25 °C, the display
should show pH4 .01, 7 .01 or 10 .01 at pH4, 7 or 10 buf-
fers, respectively .
At 20 °C, the display should show pH4 .00, 7 .03 or 10 .06 .
The meter reading at 50 °C will then be 4 .06, 6 .98 or 9 .82 .
pH VALUES
4.01
6.86
4 .01
6 .98
4 .00
6 .95
4 .00
6 .92
4 .00
6 .90
4 .00
6 .88
4 .01
6 .86
4 .02
6 .85
4 .03
6 .84
4 .04
6 .84
4 .05
6 .83
4 .06
6 .83
4 .07
6 .84
4 .09
6 .84
4 .11
6 .85
4 .12
6 .85
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
105
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