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Description
Test GH Rinse the measuring vessel with the water sample several times and fill to the mark (5ml). Hold the dropper bottle vertically and add the reagent drop by drop, swirling the sample carefully until it changes color from red to green. Count drops. 1 drop corresponds to 1 °d total hardness. Rinse the measuring vessel thoroughly after use.
Test KH Rinse the measuring vessel with the water sample several times and fill to the mark (5ml). Hold the dropper bottle vertically and add the reagent drop by drop, swirling the sample carefully until it changes color from blue to yellow. Count drops. 1 drop corresponds to 1 °d carbonate hardness. Rinse the measuring vessel thoroughly after use.
Test pH 5-10 Rinse the measuring vessel with the water sample several times and fill to the mark (5ml). Hold the dropper bottle vertically, add 5 drops of reagent and mix the sample by swirling it carefully. Place the measuring vessel on the color chart and assign the color comparison value by viewing it from above. Rinse the measuring vessel thoroughly after use.
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