010-7 Wyo. Code R. §§ 7-18 - Manual and Mechanical Warewashing Equipment, Chemical Sanitization -Temperature, pH, Concentration, and Hardness

(a) A chemical sanitizer used in a sanitizing solution for a manual or mechanical operation at contact times specified under Chapter 7, Section 17(a) (iii), shall meet the criteria specified in Chapter 9, Section 29 Sanitizers, Criteria, shall be used in accordance with the EPA-registered label use instructions, and shall be used as follows:

(i) A chlorine solution shall have a minimum temperature based on the concentration and pH of the solution as listed in the following chart:

Concentration Range	Minimum Temperature
mg/l	pH 10 or less oF (oC)	pH 8 or less oF (oC)
25-49	120 (49)	120 (49)
50-99	100 (38)	75 (24)
100	55 (13)	55 (13)

(ii) An iodine solution shall have a:

(A) Minimum temperature of 68 ^oF (20 ^oC);

(B) pH of 5.0 or less or a pH no higher than the level for which the manufacturer specifies the solution is effective; and

(C) Concentration between 12.5 mg/l and 25 mg/l.

(iii) A quaternary ammonium compound solution shall:

(A) Have a minimum temperature of 75^oF (24^oC);

(B) Have a concentration as specified under Chapter 9, Section 29, and as indicated by the manufacturer's use directions included in the labeling; and

(C) Be used only in water with 500 mg/l hardness or less or in water having a hardness no greater than specified by the EPA-registered label use instructions.

(iv) If another solution of a chemical specified under Chapter 7, Section 18(a) (i)- (iii) is used, the license holder shall demonstrate to the regulatory authority that the solution achieves sanitization and the use of the solution shall be approved; or

(v) If a chemical sanitizer other than chlorine, iodine, or a quaternary ammonium compound is used, it shall be applied in accordance with the EPA-registered label use instructions.

Notes

010-7 Wyo. Code R. §§ 7-18