CO2 is covered in NFPA 12. What I am going to say is that based on the information provided below, if a gas system was installed for the current rooms use, the same could be extended to the second room as well. The real issue is that the system installed was calculated for a specific area i.e. 400^2 and now you are adding to that space. In order to cover the new area, an installer would need to recalculate both areas combined and based on those calculations determine how much gas (CO2) is needed. This should be done by a licensed installer that can certify the system. Bill E. Anderson, Fire Chief Office of the PIADC Safety Officer U.S. Dept. of Homeland Security Plum Island Fire Department P.O. Box 848 Greenport, NY 11944-0848 Telephone: 631-323-3215 Fax: 631-323-3053 BB: 631-767-0495 -----Original Message----- From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**list.uvm.edu] On Behalf Of Ferm Barret A Sent: Tuesday, June 28, 2011 4:04 PM To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU Subject: [DCHAS-L] Post request from Barry Ferm Dear DCHAS, I would like to have input as to what are the requirements, recommendations or criteria for fire suppression in a chemical stockroom. Ours is ca. 400 ft^2, containing all the basics: gen org, gen inorg, oxidizers, poisons, flammables, reactive metals, corrosives (the latter 5 groups are in separate, ventilated cabinets). We currently have a CO2 system, but we are creating a second store room, and want to know if we need a non-water suppression system. Many thanks! Barry Ferm, St. Ambrose University. FermBarretA**At_Symbol_Here**sau.edu
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