410 Ind. Admin. Code 7-24-61

Current through October 23, 2024

Section 410 IAC 7-24-61 - "pH" defined

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

Indiana State Department of Health; 410 IAC 7-24-61; filed Oct 13, 2004, 12:30 p.m.: 28 IR 828; readopted filed Jul 15, 2010, 12:12 p.m.: 20100728-IR-410100261RFA

Readopted filed 11/10/2016, 8:45 a.m.: 20161207-IR-410160371RFA

Readopted filed 9/15/2022, 10:01 a.m.: 20221012-IR-410220206RFA