Analyzer and Bench Meter
13.3 Examples of temperature coefficients (α-value)
Substance at 25 ° C
HCl
KCl
CH3COOH
NaCl
H2SO4
HF
α-coefficients of conductivity standards for a calculation to a reference temperature of
25°C
Table 13-7 α-coefficients of conductivity standards
Standard
84 μS/cm
1413 μS/cm
12.88 mS/cm
Table 13-6 Temperature coefficient examples
Concentration [%]
10
10
10
10
10
1.5
Measurement
Measurement
temp.: 15° C
temp.: 20° C
1.95
1.95
1.94
1.94
1.90
1.89
Temperature coefficient α [%/°C]
1.56
1.88
1.69
2.14
1.28
7.2
Measurement
temp.: 30° C
1.95
1.94
1.91
EN-47
Measurement
temp.: 35° C
2.01
1.99
1.95