Item Type: PH Level Testing PaperMaterial: Test PaperColor: As Pictures ShownMeasuring Range: PH1-14Storage: Dry storage is recommended1Accurate, efficient, no reference color, no halo, with high use value.2Dip a glass stick or dropper in a small amount of reagent and smear it on the paper. Then observe the change of color and compare the color of the paper.3Reusable, just pack and store in a dry place after using is ok.4Provides reliable and accurate pH readings.5Appropriate for testing alkaline or acid level of any liquid.1. Do not put the test paper directly into the solution2. The test paper cannot measure the PH of concentrated sulfuric acid3. More accurate measurement results in normal temperature environment1 Box PHLevelTestingPaper