How do I maintain the sampling cones?

Refer to the Maintenance DVD and the Hardware Maintenance manual
The maintenance method varies depending on the level of dirt on the cone.  Methods include:
 1. Cleaning the cone with hyper pure water, and then using ultrasonic cleaning.
 2. Ultrasonic cleaning with Citranox (surfactant), rinsing with pure water and ultrasonic cleaning with pure water.
 3. Gently wiping the inside and outside of the cone with a cotton swab moistened with 2% nitric acid.
 4. Scrubbing the cone with a wet cotton swab with alumina powder. Be careful not to deform the cone tip or cavity.