Nevada Administrative Code|Section 446.303 - Warewashing: Chemical sanitizers

                                                
 446.303. 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.
 
 Added to NAC by Bd. of Health by R069-10, eff. 12-18-2013
 
NRS 439.200, 446.940