Fire extinguishers are used to control or extinguish small fires.Fire extinguishers should be fully charged and operational at all times. In the US, there are three types of fire extinguisher inspection. These are physical, internal, and hydrostatic. Fire extinguisher inspection may be done outside of regular service intervals if the extinguisher has been exposed to excessive heat or mechanical
. damage has occurred. Check out this link for more information on fire extinguisher inspection: http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9811.