Term - PH
|PH||SWPP Photographic Glossary|
Tuesday 12th November 2019
The rating of the acid or alkalinity of a solution in a scale from 0 to 14. It's based on the hydrogen ion concentration in a solution. Chemical solutions with higher PH ratings are increasingly alkaline, while lower ones acid. Distilled water is neutral with a PH rating of 7.
Information provided by: SWPP