PHAST is used to analyse situations that present potential hazards to life, property and the environment and to quantify their severity. Consequences may then be managed or reduced by design of the process or plant, modification to existing operational procedures, or by implementing other mitigation measures.

Key Differentiators

Plant layout

Inventory planning

Pollution control

Providing input to major accident prevention and safety management planning

Emergency response plan development

Safety case preparation

Compliance with regulations

Non-standard operations analysis


Key Functions

Calculate discharge of mixtures and pure comnents in scenarios of leaks, catastrophic ruptures, relief valves and disk ruptures, tank roof collapse, venting from tank vapor space, etc.

Calculate dispersion of gas and liquid for evaluation of fire, explosion or toxic release to quantify possible risks.

Calculate venting frequency.

Analyze explosion and toxic possibility, including liquid rainout, pool spreading and vaporization, jet fire, pool fire, fire ball, explosion, etc.

Build charts of high toxic density and indoor/ outdoor toxic effects.

Calculate possible risks and combustibility.

Model and cycle radiation in explosions and dispersing clouds with high pressure in explosions.

Improve source term modelling of two-phase mixtures for many models including catastrophic rupture, leak, line rupture, relief valve and disc rupture.

User-friendly interface.

PHAST is continuously developed to ensure it is the industry standard by extensive research and development and experimental validation. Recent validation includes modeling of LNG, CO2 and Hydrogen.