320x 1-14 pH Indicator Test Strips Laboratory Paper Litmus Tester Urine Saliva 320x 1-14 pH Indicator Test Strips  Laboratory Paper Litmus Tester Urine Saliva Description: Labratory pH indication strips with several uses. You can use the paper for cooking, like checking the acidity of coffee or the alkalinity of tea. Match the color changed strip with the pH scale color chart within ~15 seconds. Maintain a healthy lifestyle by testing many common everyday substances, such as moisturized soap, lemon juice, milk, liquid detergent, moisturized soil, saliva, urine, sweat, etc.  The full pH scale goes from 1 to 14: 1 - 3 : highly acidic substance 4 - 6 : an acidic substance 7 : neutral 8 - 11 : alkalinity 12 - 14 : very high alkalinity Please Note:  The strips must be properly stored at room temperature out of direct sunlight and should be kept in a sealed bag when not in use or they can become defective. Package Contents: 4 Packs of 80 pH Indicator Strips with Color Chart