3 din (according to din standard 19267, 2012), Din (according to din standard 19267, 2012) – Metrohm 914 pH / Conductometer User Manual
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7 Appendix
pH Meter/Conductometer
￭￭￭￭￭￭￭￭
69
7.1.3
DIN (according to DIN standard 19267, 2012)
Table 8
DIN buffer solutions
Temp.
(°C)
DIN (according to DIN standard 19267, 2012)
pH
1.00
pH
3.00
pH
4.00
pH
7.00
pH
9.00
pH
12.00
0
1.08
-
4.67
6.89
9.48
-
5
1.08
-
4.66
6.86
9.43
-
10
1.09
3.10
4.66
6.84
9.37
13.37
15
1.09
3.08
4.65
6.82
9.32
13.15
20
1.09
3.07
4.65
6.80
9.27
12.96
25
1.09
3.06
4.65
6.79
9.23
12.75
30
1.10
3.05
4.65
6.78
9.18
12.61
35
1.10
3.05
4.66
6.77
9.13
14.44
40
1.10
3.04
4.66
6.76
9.09
12.29
45
1.10
3.04
4.67
6.76
9.04
12.13
50
1.11
3.04
4.68
6.76
9.00
11.98
55
1.11
3.04
4.69
6.76
8.97
11.84
60
1.11
3.04
4.70
6.76
8.92
11.69
65
1.11
3.04
4.71
6.76
8.90
11.56
70
1.11
3.04
4.72
6.76
8.88
11.43
75
1.12
3.04
4.74
6.77
8.86
11.30
80
1.12
3.05
4.75
6.78
8.85
11.19
85
1.12
3.06
4.77
6.79
8.83
11.08
90
1.13
3.07
4.79
6.80
8.82
10.99
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 respective manufacturers.