Coffee Break Training: Hazardous Materials: Bulk Liquefied Petroleum Gas Container Separation Distances [open pdf - 314KB]
"Liquefied petroleum gases (LPGs) include propane, butane, and other LPG mixtures that are popular fuel sources for heating, cooking, illumination, and industrial processes. LPG has an ignition temperature in air of 900 ºF to 1,020 ºF (482 ºC to 549 ºC) and a maximum flame temperature in air from 3,595 ºF to 3,615 ºF (1,979 ºC to 1,991 ºC). These hazards require that storage facilities be arranged to minimize catastrophic events. National Fire Protection Association (NFPA) 58, 'Liquefied Petroleum Gas Code', includes the following distance requirements for separating LPG containers from adjacent containers, important buildings, groups of buildings, or the property line of adjacent parcels where structures can be erected."
Coffee Break Training - Fire Protection Series No. FP-2009-7
United States Fire Administration: http://www.usfa.fema.gov/