Gas Fires: Use a Fog Spray
Never attempt to extinguish a gas fire, but you may use a fog spray to cool combustible exposures if it is safe to do so. You may also extinguish all open flames not originating from a gas pipe.
Do not use solid or straight stream nozzles on or near a gas leak. Multiple overlapping fog streams can be used to protect the rescue team and direct the body of the fire during rescue operations.