3.4.1
Systems in Unfinished Areas
Unfinished areas are defined as attic spaces, spaces above suspended
ceilings, crawl spaces, pipe chases, and spaces where walls or ceilings are
not painted or not constructed of a prefinished material. Provide primed
surfaces with one coat of red alkyd gloss enamel applied to a minimum dry
film thickness of 0.025 mm 1.0 mil.
3.4.2
Systems in Other Areas
Provide primed surfaces with two coats of paint to match adjacent surfaces,
except provide valves and operating accessories with one coat of red alkyd
gloss enamel applied to a minimum dry film thickness of 0.025 mm 1.0 mil.
Provide piping with 50 mm 2 inch wide red enamel bands or self-adhering red
plastic tape bands spaced at maximum of 6 meters 20 foot intervals
throughout the piping systems, except in finished areas, such as offices,
the red bands may be deleted.
3.5
FIELD QUALITY CONTROL
Perform tests to determine compliance with the specified requirements in
the presence of the Contracting Officer. Test, inspect, and approve piping
before covering or concealing.
3.5.1
Preliminary Tests
Pneumatically test each piping system with carbon dioxide, nitrogen, or dry
air at 1034 kPa (gage) 150 psig for 2 hours with no leakage or reduction in
gage pressure. Gages used shall be calibrated. Upon completion and before
final acceptance of the work, test each piping system by discharging a
minimum of one 34 kg 75 pound cylinder of carbon dioxide to demonstrate the
reliability and proper functioning of each pressure-operated switch and the
discharge of carbon dioxide gas from each system discharge nozzle. After
discharge, clean wire screens at nozzles if provided. If screens or
nozzles show evidence of plugging, discharge an additional cylinder with
the nozzles removed. Individually test remote control stations and other
components and accessories to demonstrate proper functioning. When tests
have been completed and corrections made, submit a signed and dated
certificate.
3.5.2
Formal Inspection and Tests
Do not submit request for formal tests and inspection until preliminary
tests and corrections are complete and approved. The [_____] Division,
Naval Facilities Engineering Command, Fire Protection Engineer, will
witness formal tests and approve all systems before they are accepted.
Submit written request for formal inspection at least [_____] [15] working
days prior to the inspection date. An experienced technician regularly
employed by the system installer shall be present during the inspection.
At this inspection, repeat the required tests as directed. Furnish carbon
dioxide, instruments, appliances, equipment, and personnel for the tests.
3.6
SCHEDULE
Some metric measurements in this section are based on mathematical
conversion of inch-pound measurement, and not on metric measurement
commonly agreed to by the manufacturers or other parties. The inch-pound
and metric measurements shown are as follows:
SECTION 13961N
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