410 Ind. Admin. Code 7-24-61
Current through November 6, 2024
Authority: IC 16-42-5-5
Affected: IC 16-42-5
Sec. 61.
"pH" means the symbol for the negative logarithm of the hydrogen ion concentration, which is a measure of the degree of acidity or alkalinity of a solution. Values between zero (0) and seven (7) indicate acidity, and values between seven (7) and fourteen (14) indicate alkalinity. The value for pure distilled water is seven (7), which is considered neutral.
410 IAC 7-24-61