pH testing
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The pH value of a solution expresses how acidic or basic it is, ranging from 0 to 14, with 7 being neutral (neither acidic nor basic), and lower values becoming increasingly acidic. More technically, the pH of a solution is defined as the negative logarithm of the concentration of hydrogen ion. This expresses a concentration like "0.0000001 mol H+ per liter" as a more user-friendly term: pH 7.
Typical pH ranges:
Potential sources
- https://www.brunwater.com/articles/ph-meter-operation
- https://www.brunwater.com/articles/more-ph-probe-care-and-usage-guidance
- http://www.milkthefunk.com/wiki/PH_Meter
- https://www.homebrewtalk.com/threads/ph-meter-recommendations-please.682163/