“Empty” means a condition achieved when tubing, a container, or inner liner removed from a container that previously contained liquid or solid material, including, but not limited to, a chemotherapeutic agent, is considered empty. The tubing, container, or inner liner removed from the container shall be considered empty if it has been emptied so that the following conditions are met:
(a) If the material that the tubing, container, or inner liner held is pourable, no material can be poured or drained from the tubing, container, or inner liner when held in any orientation, including, but not limited to, when tilted or inverted.
(b) If the material that the container or inner liner held is not pourable, no material or waste remains in the container or inner liner that can feasibly be removed by scraping.