Wis. Admin. Code NR § 810.53

Current through May 28, 2024

Section NR 810.53 - CT table for viruses when using free chlorine

CT Values for Inactivation of Viruses by Free Chlorine

		Log Inactivation
	Temperature, °C		1.0 pH			2.0 pH				3.0 pH			4.0 pH
		6 - 9		10	6 - 9		10		6 - 9		10	6 - 9		10
	0.5	3		23	6		45		9		66	12		90
	5	2		15	4		30		6		44	8		60
	10	2		11	3		22		4		33	6		45
	15	1		8	2		15		3		22	4		30
	20	1		6	1		11		2		16	3		22
	25	1		3	1		7		1		11	2		15

Wis. Admin. Code Department of Natural Resources § NR 810.53

CR 09-073: cr. Register November 2010 No. 659, eff. 12-1-10.