Add 2 ml tank water to test tube
Add 4 drops of Mg-1 swirl for 30 sec
Add one spoon of Mg-2 powder - swirl for 10 sec
Draw Mg-3 reagent into syringe until the lower end of the black part is at the 1 ml mark. (Do not concern yourself with where the liquid level in the syringe ends up.
Start adding the syringe until the color turns from pink/purple to blue/gray. (Usually, once the water looks clear with no color, that is the end point)
Hold the syringe with the tip facing up and read the position of the upper end of the black ring.
Each division corresponds to 0.01 ml.
Since you dont' have the table,
ppm Mg = (1 - final reading of stringe ) x 1500
Example: lets say your syringe ended up at 0.14
1 minus .14 = .86 x 1500 = 1290
