Assertion: charcoal | /r/HasProperty | finished its lifespan
Facets:
value: in a particular application
type: OTHER
Source sentences:
text: Reactivated charcoal is activated charcoal that has finished its lifespan in a particular application and is then exposed again to the steam-activation process that removes the adsorbed pollutants and restores about 90% of the activity level, so that it can be safely used again.