DNV Phast v8.0 Product PHAST examines the progress of a chemical process incident from initial release through formation of a cloud or pool to final dispersion - calculating concentration, fire radiation, toxicity and explosion overpressure. Due to its reliability and outstanding technical superiority, PHAST is used by over 300 organisations world-wide. PHAST is owned by Det Norske Veritas (DNV). PHAST is a comprehensive hazard analysis package, applicable to all stages of design and operation across a range of process and chemical industry sectors. It is used to identify situations which present potential hazards to life, property or the environment. Such scenarios may be removed by re-design of the process or plant, or modification to existing operational procedures. Scenarios which remain may be submitted to further analysis such as rigorous risk assessment, where necessary, using more sophisticated QRA tools such as SAFETI.