Process Hazard Analysis Software Tool—a specialized software solution used for consequence analysis and risk assessment. Manufacturer: Det Norske Ventas (DNV) Purpose: PHAST models discharge, dispersi... Process Hazard Analysis Software Tool—a specialized software solution used for consequence analysis and risk assessment. Manufacturer: Det Norske Ventas (DNV) Purpose: PHAST models discharge, dispersion, fires, explosions, and toxic effects for a wide range of loss-of-containment scenarios. It is used in industries such as oil and gas, petrochemical, LNG, pharmaceutical, hydrogen, ammonia, carbon capture, insurance, academia, and government.