SPJ ENTERPRISE™ Water pH 1-14 Alkaline Test Paper Litmus Strips - Soil & Liquid pH Testing Kit for Drinking Water, Aquariums, Pools & Hydroponics

The test strip color changes must be matched with the pH scale color chart within about 15 seconds.

The scale reads from 1 to 14

pH paper help you to maintain good healthy body by testing many usual everyday substances, including moisturized soap, lemon juice, milk, liquid detergent, moisturized soil, saliva, urine, sweat etc.

1 - 3 indicates a very acidic substance, 4 - 6 indicates an acidic substance

7 indicates neutral, 8 - 11 indicates alkalinity

Paper Size 59 millimeter x 8 millimeter