1. Rinse the water sample test tube several times with the water to be tested and then fill with sample water to the 5 ml mark.
2. Add 4 drops of the test reagent solution and mix repeatedly turning the test tube upside down. If the sample contains ammonia, the colour changes. Test developements takes 10 to 13 minutes.
3. Match the colour of the sample with the colour chart by positioning the test tube next the most similar colour. For accurate readings compare the colours from above.
4. If ammonia is not present in the water, the fresh water solution remains clear and for salt water samples the solution turns a milky white colour.
CAUTION: if the ammonia level exceeds 1,0 mg/l we recommended that you immediatly change a third of the water in the aquarium, if the level reading is between 0,1 and 0,5 mg/l reduce the ammonia level in the water utilizing PRODAC NITRIDAC. Thoroughly clean the test tube after use, securely seal all reagent containers and store in a cool, dry place away from sunlight. Keep the product out of reach of children.