Standard solutions, Are not used. refer to, Technical buffer solutions – Hach-Lange SENSION+ pH31 User Manual
Page 18: Din 19267), Replacement parts and accessories (continued)
Replacement parts and accessories (continued)
Description
Item no.
3x50 mL printed beakers for benchtop pH calibration
LZW9110.98
Three-sensor holder, for sensION+ benchtop instruments
LZW9321.99
Holder and clamp for three sensors
LZW9155.99
Pyrex glass chamber, continuous flow measurements
LZW9118.99
PP protector, electrode storage
LZW9161.99
Standard solutions
Technical buffer solutions (DIN 19267)
Refer to
pH and ORP (mV) values of specific buffer sets at
varying temperatures.
Table 4 pH, ORP (mV) and temperature values
Temperature
pH
mV
°C
°F
0
32
2.01
4.01
7.12
9.52
10.30
—
10
50
2.01
4.00
7.06
9.38
10.17
245
20
68
2.00
4.00
7.02
9.26
10.06
228
25
77
2.00
4.01
7.00
9.21
10.01
220
30
86
2.00
4.01
6.99
9.16
9.96
212
40
104
2.00
4.03
6.97
9.06
9.88
195
50
122
2.00
4.06
6.97
8.99
9.82
178
60
140
2.00
4.10
6.98
8.93
9.76
160
70
158
2.01
4.16
7.00
8.88
—
—
80
176
2.01
4.22
7.04
8.83
—
—
90
194
2.01
4.30
7.09
8.79
—
—
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