Instructions:
Step 1: First fill the red field on the package leaflet with some finely ground sample (this is approximately 10 milligrams).
Step 2: Add the contents of both tubes to the bottle of liquid, creating a greenish top layer.
Step 3: Then add the sample to the bottle, close the lid and shake for 2 seconds.
Step 4: If the sample is positive, there may be a color change in the bottom layer. Compare this with the color chart on the test leaflet. The darker it gets, the more cocaine is present. If the color change is still transparent and shows a light to medium brown color, the sample has a large amount of adulterants.