3717-1-04.4(N)(1) Equipment, utensils, and linens: maintenance and operation

A chlorine solution is to have a minimum temperature based on the concentration and pH of the solution as listed in the following chart; Concentration range – ppm (mg/L) · Minimum temperature – pH 10 or less °F (°C) · Minimum temperature – pH 8 or less °F (°C) 25 - 49 · 120 (49) · 120 (49) 50 - 99 · 100 (38) · 75 (24) 100 · 55 (13) · 55 (13)