Warewashing: Chemical sanitizers.

A chemical sanitizer used in a sanitizing solution for a manual or mechanical operation at approved exposure times must meet the sanitizer criteria specified in this chapter and must be used as follows: 1. A chlorine solution must have a minimum temperature based on the concentration and pH of the solution as listed in the following chart: Minimum Concentration Minimum Temperature mg/L pH 10 or less °F (°C) pH 8 or less °F (°C) 25 120°F (48.9°C) 120°F (48.9°C) 50 100°F (37.8°C) 75°F (23.9°C) 100 55°F (12.8°C) 55°F (12.8°C) 2. An iodine solution must have: (a) A minimum temperature of 68°F (20°C); (b) A pH of 5.0 or less or a pH not higher than the level for which the manufacturer specifies the solution is effective; and (c) A concentration between 12.5 mg/L and 25 mg/L. 3. A quaternary ammonium compound solution must: (a) Have a minimum temperature of 75°F (23.9°C); (b) Have a concentration 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 not greater than specified by the manufacturer’s label. 4. If another solution of a chemical specified in subsection 1, 2 or 3 is used, the permit holder must demonstrate to the health authority that the solution achieves sanitization and the use of the solution must be approved. 5. If a chemical sanitizer other than chlorine, iodine or a quaternary ammonium compound is used, the sanitizer must be applied in accordance with the manufacturer’s directions for use included in the labeling.