Each day of use, laboratories shall record refrigerator temperature readings and any temperature excursions with corrective action in a logbook. Any thermometer used shall be calibrated or verified at least annually, using a recognized National Metrology Institute such as NIST, traceable references when available, bracketing the range of use.

Added at 28 Ok Reg 1201, eff 7-1-11

Amended at 36 Ok Reg 1599, eff 9-15-19