ITEM NAME:160 pH Test Strips Litmus Test Paper Full Range 1-14 Acidic Alkaline Indicator I.8 - 11 indicates alkalinity. 12 - 14 indicates a very high level of alkalinity. 1 - 3 indicates a very acidic substance. 4 - 6 indicates an acidic substance. Half second later, take out the paper and using the color chart included, compare the color change of the paper to find out the acidity level of your testing subject.
