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USACE / NAVFAC / AFCESA
UFGS-13961N (September 1999)
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Preparing Activity: NAVFAC
Replacing without revision
NFGS of same number and date
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated 23 June 2005
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SECTION 13961N
CARBON DIOXIDE FIRE EXTINGUISHING (HIGH PRESSURE)
09/99
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NOTE: This guide specification covers the
requirements for high-pressure carbon dioxide fire
extinguishing systems for protection of data
processing equipment and similar electronics
occupancies?.
Comments and suggestions on this guide specification
are welcome and should be directed to the technical
proponent of the specification. A listing of
technical proponents, including their organization
designation and telephone number, is on the Internet.
Recommended changes to a UFGS should be submitted as
a Criteria Change Request (CCR).
Use of electronic communication is encouraged.
Brackets are used in the text to indicate designer
choices or locations where text must be supplied by
the designer.
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NOTE: System requirements must conform to Unified
Facilities Criteria (UFC) 3-600-01 Design: Fire
Protection Engineering for Facilities and NFPA 12,
"Carbon Dioxide Extinguishing Systems."
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NOTE: With minor changes, this guide specification
can be adapted to other occupancies or needs, such
as the protection of electric generators. Total
flooding carbon dioxide systems shall not be
installed in normally occupied spaces. In other
spaces, consideration must be given to the
possibility that personnel could be trapped in an
atmosphere made by the discharge of carbon dioxide.
Lockout keyed switches or audible pre-discharge
signals shall be provided. Provide a sufficient
time delay to allow for evacuation under worst case
SECTION 13961N
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