80 pieces of pH test strips for making cold process soap supplies, alkaline detection 1-14st test strip for DIY soap maker craft

Hello! Thank you for checking our product page! Instructions: 1. Simply press the test strip on the body or liquid you are testing. After half a second, remove the paper and use the included color chart, and compare the color change of the paper to determine the pH level of your test subject. 2. The acidic or alkaline solution cannot be indicated when its density is less than 0.01%. 3. Keep the remaining paper dry. There is a strong relationship between the pH of the body's internal environment and pH paper helps you maintain good health by testing many common daily substances, including moisturizing soap, lemon juice, milk, liquid detergents, moist soil, saliva, urine, sweat... The scale reads from 1 to 14: -1 - 3 indicates highly acidic substance -4 - 6 indicates acidic substance -7 indicates neutral -8 - 11 indicates alkaline -12 - 14 indicates very high level of alkalinity - pH color chart 1-14 in each package - The color change of the test strip should match the pH scale color chart within approximately 15 seconds - Paper size: application 45 mm × 7 mm (length × width) Note: Please allow a difference of 1-3 millimeters due to manual measurement. Due to different screens and lighting, the image may not reflect the actual color of the item. Thank you for your understanding. Wishing you happy shopping in our store and happiness every day!