ITEM NAME:1 Box PH Test Strips Litmus Paper PH 0.0-7.0 Water Alkaline Acid Test Paper #JT1 Product Description Description: Features: Easy to use, high measurement accuracy, easy to carry in boxes. Usage method: Test the acidity and alkalinity of the solution: Take a small piece of test paper on the surface dish or glass sheet, dip it in the middle of the test paper with a clean and dry glass rod, observe the stable color, compare with the standard colorimetric card, and judge the nature of the solution. Test the acidity and alkalinity of the gas: wet the test paper with distilled water, stick it to the end of the glass rod, then send it to the container mouth where the gas is to be measured, observe the change of color, and judge the nature of the gas. (Test paper can't touch the wall of the container) Specifications: PH range: 0.0-7.0 Material: Paper Size: 88*66*10mm/3.46*2.6*0.39" Usage: Acidity and alkalinity test Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. Included: 1 Box X PH Test Paper.(Test paper can't touch the wall of the container). Usage: Acidity and alkalinity test. PH range:0.0-7.0. Included: 1 Box X PH Test Paper. Material: Paper. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.