Sper Scientific 850038 Pure Water Meter - Manual (Page 45)

Average temperature coefficients of standard
electrolyte solutions expressed as %/ C of the
conductivity value at 25 C
Temp. Range
C
15 - 25 1.725 1.863 1.882 1.981
15 - 25 - 35 1.730
(15 - 27 C)
25 - 35 1.762
(25 - 27 C)
KCl 1 M KCl 0.1 M KCl 0.01 M Saturated
NaCl
1.906 1.937
(15 - 34 C)
2.041
1.978 1.997
(25 - 34 C)
2.101
T2 should be selected as a typical sample temperature
and should be approximately 10 C different from T1.
The temperature coefficients of the following
electrolytes generally fall into the ranges shown below:
Acids: 1.0 - 1.6%/ C
Bases: 1.8 - 2.2%/ C
Salts: 2.2 - 3.0%/ C
Drinking water: 2.0%/ C
Ultrapure water: 5.2%/ C
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