§141.534. How does my system use this data to calculate an inactivation ratio?
40 C.F.R. § 141.534
Use the tables in § 141.74(b)(3)(v) to determine the appropriate CT99.9 value. Calculate the total inactivation ratio as follows, and multiply the value by 3.0 to determine log inactivation of Giardia lamblia:
Notes, amendments, and revision history
Amendments
[67 FR 1839, Jan. 14, 2002, as amended at 69 FR 38856, June 29, 2004]
Source
Source: 67 FR 1839, Jan. 14, 2002, unless otherwise noted.
Authority
Authority: 42 U.S.C. 300f, 300g-1, 300g-2, 300g-3, 300g-4, 300g-5, 300g-6, 300j-4, 300j-9, and 300j-11.
Source
Source: 40 FR 59570, Dec. 24, 1975, unless otherwise noted.
Amendments
[67 FR 1839, Jan. 14, 2002, as amended at 69 FR 38856, June 29, 2004]