How to measure the salinity of water?

It may sometimes be necessary to add salt to a freshwater aquarium or a garden pond.

Depending on the purpose of the salt treatment, the concentrations can vary between 0.5 g and 10 g of salt per liter of water.

In these cases, the salinity can be estimated by measuring the conductivity of the water.

Examples of conductivity meters adapted to this measurement range :

EC/TDS/°C tester, 20.00 mS; 10.00 g/L (reference Hanna HI 98312)

PH/EC/TDS/°C tester, 20.00 mS; 10.00 g/L (reference Hanna HI 98130)

Solutions standards 6.44 g/L, 25 sachets of 20 mL (reference Hanna HI 70038P)