shall be subjected to maintenance not more than one year apart or when
specifically indicated by an inspection.
Stored pressure types
containing a loaded stream agent shall be disassembled on an annual basis
and subjected to complete maintenance. Prior to disassembly, the
extinguisher shall be fully discharged to check the operation of the
discharge valve and pressure gauge.
A conductivity test shall be
conducted annually on all carbon dioxide hose assemblies. Hose assemblies
found to be nonconductive shall be replaced.
Every six years, stored pressure extinguishers that
require a 12-year hydrostatic test shall be emptied and subjected to the
applicable maintenance procedures.
The removal of agent
from halogenated agent extinguishers shall only be done using a halon
closed recovery system. When the applicable maintenance procedures are
performed during periodic recharging or hydrostatic testing, the six-year
requirement shall begin from that date.
Fire Hose NFPA
Rack and Reel Hose.
on racks and reels and in hose houses shall be removed and service tested
at intervals not exceeding five years after purchase date and every three
In-service hose shall
be unracked, unreeled, or unrolled and physically inspected at least
Dry Chemical Systems
semiannually, maintenance shall be conducted in accordance with the
manufacturer's maintenance manual.
As a minimum, such
maintenance shall consist of the following:
- Check to
see that the hazard has not changed.
- Examine all
detectors, expellant gas container(s), agent container(s), releasing
devices, piping, hose assemblies, nozzles, alarms, and all auxiliary
- Verify that
the agent distribution piping is not obstructed.
- Examine the
dry chemical. If there is evidence of caking, the dry chemical shall be
discarded and the system shall be recharged in accordance with the
chemical in stored pressure systems does not require semiannual
examination, but shall be examined at least every six
parts of dry chemical extinguishing systems shall be subjected to a
hydrostatic pressure test at intervals not exceeding 12
*Codes as determined by National Fire Protection