Universal 1-14 pH Test Paper Roll, Wide Range [5.5 Yard (5m) Length x 1/4" (7mm) Thick Roll with Dispenser]

5.5 Yard (5m) Length x 1/4" (7mm) Thick Roll of 1-14 pH test paper. These wide-range pH strips provide an excellent color separation for any solution and offer clear bright single color matches at every pH 1.0 interval from pH 1.0-14.0. As a safety precaution, an unknown solution should be measured for its pH value. If it is found to be too acidic, the solution may be dangerous to handle, or may have special disposal requirements. These strips are a general use pH paper, which can be used for many applications, including: Classroom Demonstrations, General Laboratories, Industrial Testing, Food Service Safety Testing, Emergency Testing, Agricultural Testing. Please note, this item is not intended for medical use. Instructions: Open the reel and remove some of the paper, using the paper you should test your solution leaving the paper in the solution for around 1-2 seconds. The paper should then be instantly compared to the reel's color chart to give you a pH reading.