A calibration logbook is used to record outcomes of accuracy check and calibration adjustment procedures which are performed on a specific breath alcohol testing instrument. The U.S. Department of Transportation regulations require Breath Alcohol Technicians to maintain a calibration logbook for every Evidential Breath Tester (EBT) used in the testing facility. The logbook is used by the Breath Alcohol Technician to document the accuracy of the EBT at the time of a particular test, as well as the precision and accuracy of the instrument.
The calibration logbook contains columns to record date, time, operator name, procedure (Accuracy Check or Calibration Adjustment), lot number of the calibration standard, target value of the calibration standard, and the result of the Accuracy Check or Calibration Procedure.
The calibration logbook should also be used when a technician takes the instrument out of service for repairs or training purposes. When a new dry gas tank is received, the technician should record the new tank in service event, including lot number, tank number and expiration date information found on the tank’s label.
The Calibration logbook is one of the documents that may be called into court and challenged, so it’s important to keep accurate records and to write neatly.
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