Waters Xevo TQD Operator's, Overview And Maintenance Manual page 190

19. Use the O-ring removal kit to carefully remove the shaft mounting
flange O-ring from the APPI source enclosure side.
20. Dispose of the O-rings in accordance with local environmental
regulations.
4-114 Maintenance Procedures
The O-rings can be contaminated with biohazard-
Warning:
ous and/or toxic materials. Ensure that they are correctly
disposed of according to local environmental regulations.
Lamp mounting flange O-ring