7 merck certipur 25, Merck certipur 25 – Metrohm 914 pH / Conductometer User Manual
Page 83
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7 Appendix
pH Meter/Conductometer
￭￭￭￭￭￭￭￭
73
7.1.7
Merck CertiPUR 25
Table 12
Merck CertiPUR 25 buffer solutions
Temp.
(°C)
Merck CertiPUR (25°C)
pH
4.00
pH
7.00
pH
9.00
pH
10.00
0
-
-
-
-
5
4.05
7.09
9.22
10.22
10
4.04
7.08
9.16
10.18
15
4.02
7.04
9.10
10.10
20
4.01
7.02
9.06
10.06
25
4.00
7.00
9.00
10.00
30
3.99
6.98
8.98
9.94
35
3.98
6.98
8.93
9.90
40
3.98
6.97
8.89
9.86
45
3.98
6.97
8.86
9.80
50
3.98
6.97
8.84
9.73
55
-
-
-
-
60
-
-
-
-
65
-
-
-
-
70
-
-
-
-
75
-
-
-
-
80
-
-
-
-
85
-
-
-
-
90
-
-
-
-
95
-
-
-
-
NOTE
Update
The values of the individual buffers with the corresponding tempera-
tures are kept up to date as far as possible. However, they may be
changed by the different manufacturers.
This manual is related to the following products: