Professional 1-14 PH Litmus Paper Ph Test Strips Water Cosmetics Soil Acidity Test Strips With Control Card

description There is a strong correlation between the pH of the internal envment of the body and the pH paper. By testing many common daily substances, including moisturizing soap, lemon juice, milk, liquid detergent, moisturizing soil, saliva, urine, and sweat, Help you stay healthy... etc. Scale from 1 to 14: 1-3 gives a very acidic substance 4-6 give acidic substance 7 means neutral 8-11 gives alkalinity 12-14 gives very high alkalinity PH 1-14 color card per pack The color change of the test paper must match the pH scale color chart within about 15 seconds Paper size: about 45mm x 7mm (length x width) Instructions: 1. Just pre the test strip on the object or liquid you want to test. After half a second, take out the paper and compare the color change of the paper together with the color chart to find out the acidity of the test object. 2. When the density is lower than 0.01%, do not give acid or alksolution. 3. Keep the remaining paper dry Package Included: 1set = 80 pH test strips

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