MIL-HDBK-1027/1B
sized for a minimum airflow of 2.36 L/s at 820 kPa. Piping, a
means for filling the extinguishers, and a suitably sized air
receiver should also be provided.
c) The entire foam fill station should be surrounded
by a containment to collect spills. Ramps should be provided
for access to the containment. Floor drains should be provided
in the containment and in two sites in the bulk storage area
where filled bottles will be stored. A room designated as an
extinguisher washdown room should be located adjacent to the
fill station. The AFFF fill station should be in accordance
with Appendix G, Figure G-10.
d) EAB and AFFF fill compressors are sources of loud
noise and vibration and should be located to minimize noise and
vibration interference with training. Noise control for these
compressors should be provided.
3.12.3.8 CO2 Extinguisher Fill Station. A CO2 extinguisher
recharging station should be provided for the 21C12, 21C12A,
19F5, and 19F5A structures. The recharging system should
consist of low-pressure refrigerated bulk storage tank and
system with CO2 at -17.8 degrees C and 2100 kPa, and a manual
extinguisher fill pump. The system should be insulated and
should have safety valves between isolation valves. Safety
valves should vent outdoors. Ensure isolation valves are
operable without interference with piping insulation. See
Appendix I, Figures I-1 through I-7 for CO2 details.
3.12.3.9 Repair Lockers.
Repair lockers are not required for
the 21C12.
3.12.3.10 Ceilings. The ceiling in the fireplace compartment
should be 2438 mm above the training floor and constructed of
grating hung from the roof. Access to the space above the
ceiling should be provided. The roof should be a minimum of
3658 mm above the training floor.
3.12.3.11 Doors. Doors in the training structure should be
44.45 mm, hollow, metal doors unless indicated otherwise.
Submarine doors between staging areas and the training
compartment should visually simulate the watertight door on a
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