(a) Temperature measuring devices — Food.
- (1) Food temperature measuring devices that are scaled only in Celsius or dually scaled in Celsius and Fahrenheit shall be accurate to plus or minus one degree Celsius (1°C) in the intended range of use. Pf
- (2) Food-temperature measuring devices that are scaled only in Fahrenheit shall be accurate to plus or minus two degrees Fahrenheit (2°F) in the intended range of use. Pf
(b) Temperature measuring devices — Ambient air and water.
- (1) Ambient air and water temperature measuring devices that are scaled in Celsius or dually scaled in Celsius and Fahrenheit shall be designed to be easily readable and accurate to plus or minus one and one-half degrees Celsius (1.5°C) in the intended range of use. Pf
- (2) Ambient air and water temperature measuring devices that are scaled only in Fahrenheit shall be accurate to plus three degrees Fahrenheit (3°F) in the intended range of use. Pf
- (c) Pressure measuring devices — Mechanical warewashing equipment. Pressure measuring devices that display the pressures in the water supply line for the fresh hot water sanitizing rinse shall have increments of seven kilopascals (7 kPa) (one pound per square inch (1 psi)) or smaller and shall be accurate to plus or minus fourteen kilopascals (14 kPa) (plus or minus two pounds per square inch (2 psi)) in the range indicated on the manufacturer’s data plate.