Waters Xevo TQ MS Operator's, Overview And Maintenance Manual page 105

6. Tip the pump toward the drain plug aperture and allow the oil to drain
completely into the container.
Warning:
roughing pump oil according to local environmental
regulations. The oil can be contaminated with biohazards
or toxic materials.
7. Dispose of the roughing pump oil in accordance with local environmental
regulations.
8. Use the lint-free cloth to remove loose particles from the magnetic tip of
the oil drain plug.
Replacing the Varian roughing pump oil and oil mist filter
To avoid spreading contamination, dispose of
February 11, 2013, 71500130002 Rev. D 105