We will be closed on Monday, September 7, in observance of Labor Day. We will resume our normal business hours on Tuesday, September 8.
pH is the measurement of weak acidity in water, see links below: https://simple.wikipedia.org/wiki/PH https://en.wikipedia.org/wiki/PHTop 10 mistakes when using a pH meterWhy and How to Determine pH in Foods by NDSU Clifford Hall III