3467 Failure mode and effects analysis tool for above-ground storage tanks storing petroleum, petroleum products or other fuels – Part 2: Effects analysis for secondary containment

Overview:

This technical publication is a user guide to accompany the workbook for the Failure mode and effects analysis tool for above-ground storage tanks storing petroleum, petroleum products or other fuels - Part 2: Effects analysis for secondary containment (a.k.a. Part 2).

This user guide and the associated workbook build on Failure mode and effects analysis tool for above-ground storage tanks storing petroleum, petroleum products or other fuels – Part 1: Failure mode analysis for primary containment (a.k.a. Part 1), which assesses the vulnerability of above-ground storage tanks (ASTs) (primary containment) to catastrophic tank failure (CTF) using the failure modes and effects analysis (FMEA) technique, by focusing on the factors that affect vulnerability to failure (causes) and primary failure modes.

For vulnerable ASTs, the Part 2 workbook considers the effects aspects of the FMEA technique for AST CTF loss of containment (LoC) fluid flow on secondary containment, which may result in secondary containment failure (breach), or the fraction of an AST’s stored volume of fluid that may overtop the secondary containment wall, leading to wider LoC fluid flow.

The AST failure rates determined in Part 1 may be used with the volumes of fluid released from failure or overtopping the secondary containment predicted in the Part 2 effects analysis to inform a predictive CTF LoC major accident hazard (MAH) risk assessment for ASTs and its secondary containment.

Please note that the workbook is free to download, but password protected. The password is contained within the accompanying publication.