3717-1-04.1(N) Equipment, utensils, and linens: design and construction

Pressure measuring devices for mechanical warewashing equipment - accuracy. Pressure measuring devices that display the pressures in the water supply line for the fresh hot water sanitizing rinse are to have increments of one pound per square inch (seven kilopascals) or smaller and be accurate to plus or minus two pounds per square inch (plus or minus fourteen kilopascals) in the range indicated on the manufacturer's data plate.