Always be on the safe side!
Working with Process Safety can be very challenging due to the mandatory national and international legislation.
Directives may change and requirements change accordingly. Global Functional Safety (GFS) has an in-depth knowledge of national and international standards and directives and can thus render qualified and up-to-date services to our customers, so they comply with the Seveso directive, also referred to as COMAH (Control of Major Accident Hazards).
The Seveso directive applies to all companies handling or storing dangerous substances. They are defined into two categories depending on the quantity of the dangerous substances. That is, the Lower tier sites (below 50 tons) and the Top tier (above 200 tons).
Dangerous substances can also be of oxidizing, explosive or flammable character. When a company handles such substances, the local authorities must be consulted.
Accidents do happen, but the consequences can be limited by implementing thoroughly defined safety barriers.
Safety barriers can be:
- Passive barriers such as dikes and firewalls, etc.
- Active barriers which are technical systems, that can detect the hazardous situation and have the ability to define proper action and execute the required action within a defined time frame.
- Partly active barriers rely on the proper action by an operator. In this case the human factor must be considered.
Using the gas dispersion simulation software Phast, the loss of containment incidents can be analysed to determine how the pool spreading and evaporation cloud (flammable/toxic) may spread within the perimeter of the company. The effect on a possible third party in the area can also be analysed.
The results of the analysis form a valuable basis to define additional safety barriers, typical safety systems, and to improve gas detection layout as well.