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32.8 Stored buffer series for pH calibration
55
60
65
70
Temp.
(°C)
30
35
40
45
50
75
80
85
90
95
NOTICE
4.06
4.07
4.09
4.11
pH
4.00
4.00
4.01
4.02
4.03
4.04
4.13
4.15
4.18
4.20
4.23
6.99
7.00
7.00
7.01
7.02
6.97
6.97
6.98
6.98
Precisa pH
7.00
6.99
6.98
6.98
6.97
6.97
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
8.81
8.79
8.76
8.74
pH
9.00
8.96
8.93
8.90
8.87
8.84
8.73
8.71
8.70
8.68
8.67
Update
The values of the individual buffers with the corresponding temperatures are kept as up to date as possible.
However, they may be changed by the respective manufacturers.
32.8.12 Merck CertiPUR 20 / Titrisol
Table 34 Merck CertiPUR 20 / Titrisol buffer solutions
Merck CertiPUR 20 / Titrisol
Temp.
(°C)
0
5
10
15
20 pH
2.000
2.010
2.010
2.010
2.000
2.000
pH
4.000
4.050
4.040
4.020
4.010
4.000
pH
7.000
7.130
7.070
7.050
7.020
7.000
pH
9.000
9.240
9.160
9.110
9.050
9.000
pH
12.000
12.580
12.410
12.260
12.100
12.000
510 ￭￭￭￭￭￭￭￭ 900 Touch Control
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Key Features
- Dynamic equivalence point titration (DET)
- Monotonic equivalence point titration (MET)
- Endpoint titration (SET)
- Water determination according to Karl Fischer (KFT)
- Titration with constant maintenance of the measured value (STAT)
- Manual titration (MAT)
- Coulometric water content determination according to Karl Fischer (KFC)
- Bromine index determination (BRC)
- Intuitive touch-sensitive screen for easy operation
- Comprehensive user administration for secure data management