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10. Standard solutions
10.1. Buffer solutions
The pH values of the buffer solutions are shown by temperature in Table 1.
Table 1. Stored pH, Redox and temperature values
Temperature
°C
0
10
20
25
30
40
50
60
70
80
90
10.2. Conductivity standard solutions
The conductivity values of the standard solutions are shown by temperature in Table 2.
Table 2. Stored conductivity and temperature values
Temperature
°C
15.0
16.0
17.0
18.0
19.0
20.0
21.0
22.0
23.0
24.0
25.0
26.0
27.0
28.0
29.0
30.0
31.0
32.0
33.0
34.0
35.0
sensION+ MM150 HACH 0710.indd ANG:25
sensION+ MM150 HACH 0710.indd ANG:25
°F
32
2.01
4.01
50
2.01
4.00
68
2.00
4.00
77
2.00
4.01
86
2.00
4.01
104
2.00
4.03
122
2.00
4.06
140
2.00
4.10
158
2.01
4.16
176
2.01
4.22
194
2.01
4.30
°F
µS/cm
59
119
60.8
122
62.6
125
64.4
127
66.2
130
68
133
69.8
136
71.6
139
73.4
142
75.2
145
77
147
78.8
150
80.6
153
82.4
156
84.2
159
86
162
87.8
165
89.6
168
91.4
171
93.2
174
95
177
pH
7.12
9.52
7.06
9.38
7.02
9.26
7.00
9.21
6.99
9.16
6.97
9.06
6.97
8.99
6.98
8.93
7.00
8.88
7.04
8.83
7.09
8.79
Conductivity (CE)
µS/cm
mS/cm
1147
10.48
1173
10.72
1199
10.95
1225
11.19
1251
11.43
1278
11.67
1305
11.91
1332
12.15
1359
12.39
1386
12.64
1413
12.88
1440
13.13
1467
13.37
1494
13.62
1522
13.87
1549
14.12
1581
14.37
1609
14.62
1638
14.88
1667
15.13
1696
15.39
mV
10.30
––
10.17
245
228
10.06
10.01
220
9.96
212
9.88
195
9.82
178
9.76
160
––
142
––
––
––
––
mS/cm
92.5
94.4
96.3
98.2
100.1
102.1
104.0
105.4
107.9
109.8
111.8
113.8
115.7
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