Five steps to API 2350 complianceTank overfill incidents have resulted in loss of life and billions of dollars in damages to petroleum facilities worldwide. One of the worst incidents – the overflow of a petrol storage tank at Buncefield Oil Depot (UK) – has been traced to the failure of level control to maintain containment of the flammable liquid. More common are minor spills that cause significant environmental impact and result in millions of dollars in clean-up fees and environmental agency fines.In the wake of this incident, the American Petroleum Institute’s (API) Recommended Practice (RP) 2350, the most widely accepted guideline for overfill prevention of petroleum storage tanks, has been revised. The fourth edition should be finalised by the end of 2011 and is expected to combine the prescriptive standards of RP 2350 with the functional safety standards of Safety Instrumented Systems (SIS), as described in IEC 61511.
As part of continued safety improvements and to provide verification of systems defined as critical to the safety of the storage tank facilities, one of Letico’s Clients, a major oil company, has asked Letico to review to their current operating practices.