have a tag attached to it showing the maintenance or recharge date and the initials or
signature of the person who performed the service.
(3) An extinguisher shall receive a thorough inspection at least once a year to
insure operability. An extinguisher requiring recharging or weighing shall be
maintained at least annually.
(4) An extinguisher showing evidence of corrosion or mechanical injury shall be
subjected to an approved hydrostatic test as specified in R 408.10836(2) or shall be
replaced. A pump-type water or antifreeze extinguisher or a nonrefillable container
showing evidence of corrosion or mechanical injury shall be replaced.
(5) Stored pressure dry chemical extinguishers that require a 12-year hydrostatic
test shall be emptied every 6 years in compliance with applicable maintenance
procedures. When recharging or hydrostatic testing is performed, the 6-year requirement
shall begin from that date. Dry chemical extinguishers having a nonrefillable
disposable container are exempt from this requirement.
History: 1979 AC; 1984 AACS.
R 408.10836. Testing.
Rule 836. (1) An extinguisher shall receive an approved hydrostatic test every 5
years, except for dry chemical extinguishers with brazed brass, aluminum, or mild
steel shells; bromotrifluoromethane extinguishers; and dry powder extinguishers for
metal fires, which shall be tested every 12 years. The hydrostatic test date shall be
recorded on a suitable metallized decal or equally durable material which has been
affixed by a heatless process to the shell of the extinguisher and which shows the date
of the test, test pressure, and the name of the person or agency making the test.
An extinguisher tested after July 5, 1974, shall have a label which will not retain its
original condition when removal from an extinguisher is attempted. An extinguisher
manufactured under the Untied States department of transportation specifications
incorporated in subrule (2) of this rule may have the inspection date and the
serviceman's or firm's name, initials, or symbol stamped into the cylinder.
(2) An extinguisher, cylinder, or cartridge used for storage of a compressed gas,
manufactured as prescribed by United States department of transportation specifications,
shall be hydrostatically tested in accordance with the United States department of
transportation regulations prescribed in 49 C.F.R. Part 179 to 190, 2004 edition, which
are incorporated herein by reference.
(3) A nitrogen cylinder or other cylinder for inert gas, such as on a wheeled
extinguisher, shall be tested at not less than 5 year intervals.
(4) The hose and couplings on an extinguisher equipped with a shut-off nozzle at the
outlet end of the hose shall have a hydrostatic test interval prescribed for the unit on
which the hose is installed.
(5) A dry chemical and dry powder hose assembly requiring a hydrostatic test shall
be at a test pressure of 300 pounds per square inch for 1 minute. A carbon dioxide hose
assembly requiring a hydrostatic test shall be at a test pressure of 1,250 pounds per
square inch for 1 minute. Such hoses shall be tested within a protective cage.