Test hardness TH - Reagent drop

TH TEST LIQUID

This drop test to determine the degree TH waters which we want to determine the hardness.

The hardness corresponds to all of the alkaline earth ions are calcium ions and magnesium mainly.
This kit consists of a reagent bottle and its graduated test tube.

Instructions :
Pour the water sample in the test tube to the mark.
 

Add some drops of reagent and shake.
If the color is blue, TH = 0: the water is not hard.
If the color is purple, water has a certain hardness dropwise reagent TH.
Count the number of drops added until a blue coloration.