For the presumptive identification of PCP (phencyclidine). Test J should be used after positive results from Tests A, G, I and W.
In order to test an unknown substance, simply slide off the pouch clip and, using the loading device, place a small amount of the unknown substance in the pouch. Break the glass ampules (from left to right). Agitate the solution in the pouch and watch for the color change(s). Next, compare the color(s) of the solution to the color(s) printed on each pouch.