Water hardness analysis test

Water hardness or lime content varies from region to region:

Water hardness range: 1 French degree corresponds to 10 mg/l CaCO3 (calcium and magnesium salts).

• Low hardness: 0°f < TH15°f (softening not essential)
  
• Medium hardness: 15°f < TH 25°f (softening desirable)
• High hardness: 25°f < TH 35°f (softening recommended)
• High hardness: TH > 35°f (softening essential)

• Add 1 drop of reagent, shake and observe water coloring:

If the water turns blue, the concentration is < 1 TH°.

If the water turns pink, the concentration is 2 TH°.

Add the reagent drop by drop until the color is red

FROM PINK COLORING onwards, each drop added corresponds to 1 Th

(equivalent to 1 HF°= 10 ppm CaCo3) to determine TH concentration and return to blue

(e.g.: 40 drops for a change from pink to blue indicates that the Th is 40).

It's important to keep your test away from light, heat or cold. Store at room temperature.