14
The TDS value in aqueous solutions is directly proportional to
conductivity. The ratio between the two parameters depends on the
solution and usually it is set to a factor of 0.5 (corresponding to a
solution of CaCO
3
). This means that 1 µS/cm is equal to 0.5 mg/L
(ppm) of TDS.
For manual temperature compensation, refer to the following chart:
For instance, the TDS values of the calibration solutions at 25°C are
1382 mg/L or 12.41 g/L when using HI 7032 or HI 7036,
respectively.
At 20°C, the values are 1251 mg/L or 11.24 g/L, respectively.
With the solutions at 30°C, the values are 1515 mg/L or 13.61 g/L,
respectively.
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