Operating Instructions
Thermo Scientific Alpha COND 1000
33
Substance Concentration
wt
%
Conductivity 10
-4
S/cm
Conductivity
Coefficient
KBr 5
465
2.06
(15
C) 10
928
1.94
20
1907 1.77
KCN 3.25
507
2.07
(15
C) 6.5
1026
1.93
NH
4
Cl 5
918
1.98
10
1776 1.86
15
2586 1.71
20
3365 1.61
25
4025 1.54
(NH
4
)
2
SO
4
5
552
2.15
10
1010 2.03
20
1779 1.93
30
2292 1.91
12.4 Appendix 4 –Conductivity of Various Aqueous Solutions at 25°C
Conductivity Resistivity
Pure Water
0.05
uS/cm
18
M
Ω
-cm
Power Plant Boiler Water
0.05 - 1
uS/cm
1 - 18
M
Ω
-cm
Distilled Water
0.5
uS/cm
2
M
Ω
-cm
De-ionized Water
0.1 - 10
uS/cm
0.1 - 10
M
Ω
-cm
De-mineralised Water
1 - 80
uS/cm
0.01 - 1
M
Ω
-cm
Mountain Water
10
uS/cm
0.1
M
Ω
-cm
Drinking Water
0.5 - 1
mS/cm
1 - 2
M
Ω
-cm
Waste-water
0.9 - 9
mS/cm
0.1 - 1
M
Ω
-cm
Potable Water Maximum
1.5
mS/cm
0.7
M
Ω
-cm
Brackish Water
1 - 80
mS/cm
0.01 - 1
M
Ω
-cm
Industrial Process Water
7 - 140
mS/cm
rarely stated
Ocean Water
53
mS/cm
rarely stated
