| Water tests set for the reliable and exact determination of four crucial water equivalents: Total hardness, carbonate hardness, pH value (fresh water) and nitrite content in the water. Beside the test reagents it contains of four cuvettes, color cards and a dosing syringe. After measurement of the pH and of the KH value can be read off over the CO²-calculation table of the CO² content of the water. |
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Tetra Test Laborett