Metrohm 914 pH / Conductometer - Manual (Page 80)

7.1 Saved buffer series
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70 ￭￭￭￭￭￭￭￭
pH Meter/Conductometer
7.1.4 Fisher
Table 9 Fisher buffer solutions
Temp.
(°C)
Fisher
pH
2.00
pH
4.00
pH
7.00
pH
10.00
0 - 4.01 7.13 10.34
5 1.98 3.99 7.10 10.26
10 1.98 4.00 7.07 10.19
15 2.02 3.99 7.05 10.12
20 2.00 4.00 7.02 10.06
25 2.00 4.00 7.00 10.00
30 2.00 4.01 6.99 9.94
35 2.02 4.02 6.98 9.90
40 2.01 4.03 6.97 9.85
45 2.01 4.04 6.97 9.81
50 2.01 4.06 6.97 9.78
55 - 4.07 6.97 9.74
60 - 4.09 6.98 9.70
65 - 4.11 6.99 9.68
70 - 4.13 7.00 9.65
75 - 4.14 7.02 9.63
80 - 4.16 7.03 9.62
85 - 4.18 7.06 9.61
90 - 4.21 7.08 9.60
95 - 4.23 7.11 9.60
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 respective manufacturers.