(Sensitivity 0,5 to 10 mg/l(ppm) Fe)
- Rinse the test tube with the water to be tested and fill the 5ml. Mark.
- Add 5 drops Total Iron Indicator, stopper the test tube and shake gently.
- After 3-5 minutes, compare the reddish color to color reference chart to determine concentration of total iron in mg/l (ppm)
- Color comparation must be completed within 20 minutes.
