Best Laboratory Practices - Pipette Reference - Anatomy of a Pipette

1. The adjustment screw to adjust the volume

2. The micrometer which gives feedback on the set screw setting

3. The displacement piston which displaces air in the air chamber

4. The air chamber that separates the liquid or sample from the plunger and mechanicals of the pipette.

5. The aspirate/dispense spring, this is the “First Stop” spring

6. The blow out spring, this is the “Second Stop” spring

7. The calibration adjustment screw