2 Packs PH 1-14 Test Paper Litmus Strips Tester, 80pcs Per Pack
There is a strong correlation between the pH of the body's internal environment and 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.The scale reads from 1 to 14:1 - 3 indicates a very acidic substance4 - 6 indicates an acidic substance7 indicates neutral8 - 11 indicates alkalinity12 - 14 indicates a very high level of alkalinityPH 1-14 color chart in each packThe test strip color changes must be matched with the pH scale color chart within about 15 secondsPaper Size:app 45mm x 7mm (L x W)