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63.11.4 Required Protection

Fire Code 2021 of West Virginia > 63 Compressed Gases and Cryogenic Fluids > 63.11 Carbon Dioxide Beverage Systems > 63.11.4 Required Protection
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Carbon dioxide storage tanks, cylinders, piping, and equipment located indoors, in rooms, and other areas where a leak of carbon dioxide can collect shall be provided with either ventilation in accordance with 63.11.4.1 or an emergency alarm system in accordance with 63.11.4.2. [55:13.11.4]
63.11.4.1 Ventilation
Mechanical ventilation shall be in accordance with the Uniform Mechanical Code and shall comply with all of the following:
  1. Mechanical ventilation in a room or area shall be at a rate of not less than 1 ft3/min/ft2 (0.00508 m3/s/m2).
  2. Exhaust shall be taken from a point within 12 in. (305 mm) of the floor.
  3. The ventilation system shall be designed to operate with a negative pressure in relation to the surrounding area.
[55:13.11.4.1]
63.11.4.2 Emergency Alarm System
Emergency alarm systems shall comply with all of the following:
  1. Areas where carbon dioxide can accumulate, continuous gas detection shall be provided.
  2. The system shall be capable of detecting and notifying the building occupants of a gas release of carbon dioxide at, or in excess of, the Time-Weighted Average-Permissible Exposure Limit (TWA-PEL) published by the Occupational Safety and Health Administration (OSHA) and the Threshold Limit Value-Short Term Exposure Limit (TLV®-STEL) published by the American Conference of Governmental Industrial Hygienists (ACGIH). More conservative set points shall be permitted to be used.
  3. The emergency alarm system activation shall initiate a local alarm within the room or area in which the system is installed.
[55:13.11.4.2]
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