How do you properly calibrate a pipette for accurate measurements in the laboratory?

To properly calibrate a pipette for accurate measurements in the laboratory, follow these steps:

1. Check the pipette for any visible damage or contamination.
2. Use a calibrated balance to weigh the water dispensed by the pipette.
3. Compare the measured weight to the expected weight based on the pipette's specifications.
4. Adjust the pipette if there is a discrepancy by following the manufacturer's instructions for calibration.
5. Repeat the calibration process until the pipette consistently delivers accurate measurements.