Standard for Fibre Reinforced Underground Tanks for Flammable and Combustible Liquids

1  Scope

1. 1. This Standard sets forth minimum design and construction requirements for fibre reinforced plastic, non-pressure tanks that are used for the underground storage of flammable and combustible liquids.

1.2  This Standard covers tanks of either single, double or multiple wall construction.

1.3  Tanks covered by this Standard are fabricated, inspected, and tested for leakage prior to shipment from the factory as completely assembled vessels.

1.4  This Standard covers tanks where the primary tank may have a single compartment or have multiple compartments.

1.5  These tanks are intended for installation and use in accordance with applicable documents.

1.6   Accessories, such as, ladders, tank sumps, risers, and guide lugs, that do not affect tank performance and are attached to the tank internally or externally during manufacture are permitted but not covered by this standard.

1.7  Except for optional Climate Change Adaptation requirements in Appendix F, these requirements do not cover special evaluations for resistance to, or use after earthquakes, floods, high wind events, or other natural disasters.