5M PH Test Paper Roll, 1-14 Alkaline Acid Indicator Testing Universal Laboratory

1¡¢1. Compact and light circular design, easy to use and carry, the length of each roll is approximate. 2¡¢2. The pH test paper has a complete pH range, which can measure the pH value from 0 to 14, and the time interval of the pH color card: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, easy to read. 3¡¢3. It has a wide range of uses and can determine the pH value of any liquid. Using pH test paper, you can measure the pH of human urine, saliva, drinking water, swimming pools, aquariums, hydroponics, aquariums, food, etc. 4¡¢4. Easy to use: Take out a small test strip, immerse the test strip in the test solution for half a second, and then compare it with the standard color on the card to get the result. 5¡¢5. Our pH test paper is composed of a 5 meter long roll, which can perform about 250 measurements (each measurement is 2cm).Specification: 5meter/rollTest range: ph1-14Shelf life: 3 years1* PH Test PapeDue to the different monitor and light effect,the actual color maybe a slight different from the picture color.Please allow 1-2cm differs due to manual measurement.