pH Test Strips- 4 Packs of 320 pH. 1-14 Test Paper- Litmus Paper pH Test Strips- pH Balance Test Strips for Women for Water Saliva Urine Soil Testing

4 Packs of 320 pH Test Strips, pH. 1-14 Test Paper, litmus Paper pH Test Strips, pH Balance Test Strips for Women for Water Saliva Urine Soil Testing SPECIFICATIONS: Each pack size: 70 x 45 x 5 mm This test strip has full range of 1 to 14 by intervals: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14. 1 - 3 indicates a very acidic substance; 4 - 6 indicates an acidic substance; 7 indicates neutral; 8 - 11 indicates alkalinity; 12 - 14 indicates a very high level of alkalinity. Please search special test strips if a higher precision needed. PACKAGE INCLUDE: 4 packs/ 320 pieces pH test paper METHOD OF MEASUREMENT: Step 1: Take out a test paper. Step 2: Use glass rods, cotton swabs or other sharp objects to dip a small amount of test material onto the test paper to see the color change. Step 3: Finally, we can know the pH value by comparing the color classification on the colorimetric board. NOTE: Do not immerse the PH bar in the test solution. This may result in incorrect test results. please put the test droplet on the PH test paper