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5003.8.4.1 Construction.
Gas rooms shall be protected throughout by a sprinkler system. Gas rooms shall be separated from the remainder of the building in accordance with the construction codes, including the Building Code, based on the occupancy group into which the building has been classified.
5003.8.4.2 Ventilation system.
The ventilation system for gas rooms shall be designed to operate at a negative pressure relative to the surrounding area. Highly toxic and toxic gases shall additionally comply with the requirements of FC 6004.2.2.6. The ventilation system shall be installed in accordance with the construction codes, including the Mechanical Code.
5003.8.5 Exhausted enclosures.
Where an exhausted enclosure is used to increase maximum allowable quantity per control area or when the location of hazardous materials in exhausted enclosures is provided to comply with the requirements of FC Chapter 60, the exhausted enclosure shall be in accordance with FC 5003.8.5.1 through 5003.8.5.3.
5003.8.5.1 Construction.
Exhausted enclosures shall be of noncombustible construction.
5003.8.5.2 Ventilation.
The ventilation system for exhausted enclosures shall be designed to operate at a negative pressure relative to the surrounding area. Ventilation systems used for highly toxic and toxic gases shall additionally comply with the requirements of FC 6004.1.3. The ventilation system shall be installed in accordance with the construction codes, including the Mechanical Code.
5003.8.5.3 Fire extinguishing system.
Exhausted enclosures where flammable materials are used shall be protected by a fire extinguishing system in accordance with FC Chapter 9 and the construction codes, including the Building Code.
5003.8.6 Gas cabinets.
Where a gas cabinet is used to increase the maximum allowable quantity per control area or when the location of compressed gases in gas cabinets is provided to comply with the requirements of FC Chapter 60, the gas cabinet shall be in accordance with FC 5003.8.6.1 through 5003.8.6.3.
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