pH color chart is printed on the side of the dispenser
Color changes for each half pH unit
وصف
1. Dip the test paper into the liquid to be tested. 2. Observe the color change on the pH color chart printed on the side of the dispenser. 3. Interpret the pH level based on the color change, with each half pH unit indicated. 4. For saliva or urine testing, follow standard collection procedures before dipping the test paper.