Demonstrate competency in packaging techniques: use appropriate package according to size, utilize proper labeling of contents and expiration dates, and properly seal packages with tape or heat where appropriate to properly safeguard items·needed protection in packaging (i.e. sharp or delicate instruments). Demonstrate by explanation the functional operation of the steam and Sterrad sterilizers in terms of time, temperature, pressure, contact, and humidity; describe and understand Leak testing, Bowie/Dick testing, and appropriate documentation; describe what happens during each phase of the complete sterilization cycle.