Instructions for use: Take a sample so that there is about 0,5-1,5 cm of the solution to be tested in the bottom of the vessel. Place the white absorption membrane of a test strip into the sample and allow it to adsorb the solution. If there are copper ions in the sample, a brown region will begin to form. The test is complete when the sample reaches the top of the test strip. Typically, this takes 4 to 6 minutes. Measure the length of the brown region (except the length of absorption membrane) and convert it to copper ion concentration using the table.
Storage: Avoid exposing the test strips to sunlight and moisture. Keep pack cool and dry (storage temperature not above +30°C).