9V0882

WATER HARDNESS TEST STRIP 40-1000mg/l (50 TESTS)

The total water hardness indicates the amount of minerals (calcium, magnesium, calcium carbonate, magnesium carbonate) present inside the water. The value is expressed in ppm. Consider the equivalence 1°fH = 0,55°dH  = 10mg/l = 10ppm to calculate the water hardness in french degrees using the chromatic scale on the package.

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