Copper h2o Test Kit
Fill a clean test tube with 5ml of water to be tested (to the line on the bottle).
Add 10 drops of test solution, holding dropper bottle upside down in a completely vertical position to assure uniformity of drops added to the water sample.
Cap the test tube and shake the tube for 5 seconds. Do not hold finger over the open end of test tube, as this may affect test results.
Wait one minute for the color to develop.
Remove the cap. Hold the test tube upright over the white area on the color chart and view the color of the solution by looking down from above through the tube from top to bottom. Compare the color of the sample with the printed colors.
Even a very faint color indicates the presence of copper. The closest color match on the test chart indicates the total PPM of total copper (free and chelated) in the water sample.