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IX. pH BUFFERS
The temperature characteristics of pH calibration buffers 4.00, 4.01,
6.86,7.00, 9.18 and 10.01 are stored inside the instrument. The
buffers used to calibrate the instrument must exhibit the same
temperature characteristics as the stored values.
TABLE 1.
°C
0
5
10
15
20
25
30
35
40
45
50
55
60
Note: The actual reading of the instrument can differ from the values
shown by ±0.01 pH.
4.00
6.86
4.01
6.98
4.00
6.95
4.00
6.92
4.00
6.90
4.00
6.88
4.00
6.86
4.01
6.85
4.02
6.84
4.03
6.84
4.04
6.83
4.06
6.83
4.07
6.83
4.09
6.84
9.18
4.01
9.46
4.01
9.39
4.01
9.33
4.00
9.28
4.00
9.23
4.00
9.18
4.01
9.14
4.01
9.10
4.02
9.07
4.03
9.04
4.04
9.02
4.06
8.99
4.08
8.97
4.10
30
7.00
10.01
7.11
10.32
7.08
10.25
7.06
10.18
7.03
10.12
7.01
10.06
7.00
10.01
6.98
9.97
6.98
9.93
6.97
9.89
6.97
9.86
6.97
9.83
6.97
9.80
6.98
9.78
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