Mg marine water test Askoll

How to do the test

1. Repeatedly rinse the test tube with water to analyze.

2. Fill the test tube with 2 mL of water to analyze.

3. Add 5 drops of reagent Mg 1 and shake the tube for about 20 seconds.

4. Add 5 drops of reagent Mg 2 and shake the tube, the solution will color red-violet.

5. Mount the plastic spout on the syringe tip aspiring 1 mL of the reagent Mg 3 and put it slowly in the tube until the water sample will turn from red-violet to blue. The number of tenths of mL required to turn the liquid color into the test tube will indicate the content of Magnesium according to the notes shown in the table at the back of this leaflet. It is also possible to calculate the content of Magnesium by multiplying for 1,500 the number of mL necessary to change the liquid in the test tube. Example: 0,90 mL of Mg 3 necessary to turn the color from violet red to blue X 1500 = 1350 mg/L of Magnesium.