Propellant Charging Room (Gas House, Gassing Room) : Any room or enclosure in which the propellant is added to the aerosol containers. The definition includes prefabricated gas houses and enclosures
NFPA 30B Code for the Manufacture and Storage of Aerosol Products, 2002 ed. http://www.nfpa.org/assets/files/AboutTheCodes/30B /30B-A2002-rop.pdf, (Code: Code for the Mfg and Storage of Aerosol Prod for the Mfg and Storage of Aerosol Prod - Amer) {194 NFC}