Wellcom to the coralsea
Instruction.Nitrate Test
Fill the test vial with 1 ml of water.
Add 2 drops of NO3-A.
Add 2 drops of NO3-B.
Add 1 level scoop of NO3-C powder.
Swirl gently (DO NOT SHAKE) for 30 seconds. Let stand for 3 minutes.
Place the test vial on the white part of the color chart and compare colors looking from top.The nitrate values are in ppm (mg/L).