Definition(s)
Inside Air Foam System
Inside air foam system is a fixed high-expansion foam fire-extinguishing system with foam generators located inside the protected space and drawing air from that space. A high-expansion foam system using inside air consists of both the foam generators and the foam concentrate.
Source: IMO MSC.1/Circ.1271, Guidelines for the approval of high-expansion foam using inside air for the protection of machinery spaces and cargo pump-rooms, 4 June 2008, International Maritime Organization. Regulatory Guidance
Inside Air Foam System
Inside air foam system is a fixed high-expansion foam fire-extinguishing system with foam generators located inside the protected space and drawing air from that space. <fixed foam fire-extinguishing systems>.
Source: IMO Resolution MSC.327(90), amendments to the International Code for Fire Safety Systems, 25 May 2012, International Maritime Organization. Regulatory Guidance