Description
Test Procedure:
- Rinse vial three times with the water to be tested. Then, fill vial to the top line with water and dip one Phosphate strip into the vial for 20 seconds while using a gentle up and down motion. Be sure that all test pads are in contact with the water.
- Remove and discard the strip.
- With the colour chart on a flat surface, after 40 seconds, place the sample vial on the white circles. Viewing from the top, slide the vial from one white circle to the next until the best colour match is found. Complete the colour match within 15 seconds.