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Table 1 pH, ORP (mV) and temperature values
Temperature
°C
°F
0
32
2.01
4.01
10
50
2.01
4.00
20
68
2.00
4.00
25
77
2.00
4.01
30
86
2.00
4.01
40
104
2.00
4.03
50
122
2.00
4.06
60
140
2.00
4.10
70
158
2.01
4.16
80
176
2.01
4.22
90
194
2.01
4.30
Conductivity standard solutions
Refer to
Table 2
for conductivity values of standard solutions at varying
temperatures.
Table 2 Conductivity and temperature values
Temperature
°C
°F
µS/cm
15.0
59
119
16.0
60.8
122
17.0
62.6
125
18.0
64.4
127
19.0
66.2
130
pH
7.12
9.52
10.30
7.06
9.38
10.17
7.02
9.26
10.06
7.00
9.21
10.01
6.99
9.16
9.96
6.97
9.06
9.88
6.97
8.99
9.82
6.98
8.93
9.76
7.00
8.88
–
7.04
8.83
–
7.09
8.79
–
Conductivity (EC)
µS/cm
mS/cm
mS/cm
1147
10.48
92.5
1173
10.72
94.4
1199
10.95
96.3
1225
11.19
98.2
1251
11.43
100.1
Table 2 Conductivity and temperature values (continued)
mV
Temperature
20.0
68
–
21.0
69.8
245
22.0
71.6
228
23.0
73.4
220
24.0
75.2
212
25.0
77
195
26.0
78.8
178
27.0
80.6
160
28.0
82.4
–
29.0
84.2
–
30.0
86
–
31.0
87.8
32.0
89.6
33.0
91.4
34.0
93.2
35.0
95
Salinity values for dissolved oxygen meters
Table 3
can be used to convert conductivity values to salinity for dissolved
oxygen meters.
Conductivity (EC)
133
1278
11.67
136
1305
11.91
139
1332
12.15
142
1359
12.39
145
1386
12.64
147
1413
12.88
150
1440
13.13
153
1467
13.37
156
1494
13.62
159
1522
13.87
162
1549
14.12
165
1581
14.37
168
1609
14.62
171
1638
14.88
174
1667
15.13
177
1696
15.39
102.1
104.0
105.4
107.9
109.8
111.8
113.8
115.7
–
–
–
–
–
–
–
–
English 15
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