Request for Assistance in Preventing Hazards in the Use of Water Spray (Fog) Streams to Prevent or Control Ignition of Flammable Atmospheres

摘要

Fire departments and teams responding to incidents involving flammable gas or vapor mixtures are cautioned that the use of water spray (fog) streams to prevent ignition or control flame propagation may be extremely dangerous. Significant fires or explosions can occur despite the use of water spray. Under certain conditions, the use of water spray may in fact increase the severity of such fires and explosions. The use of water spray cannot be relied upon to quench a fire in a flammable atmosphere.