Neutral pH-7 displayed on a digital pH measuring device (ECO pH pH-Pocket-Tester by Step Systems)
Size: 3419px × 5147px
Photo credit: © PHOTOSTOCK-ISRAEL/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 7, acidity, basicity, chemistry, device, devices, instrument, instruments, measure, measurement, measuring, neutral, ph, science, scientific