ULC 677

This Standard covers minimum requirements for shop fabricated, aboveground fire tested tank assemblies intended for storage of flammable and combustible liquids that have a specific gravity not greater than 1.0 and that are compatible with the material of the tank.

Tank assemblies constructed to meet this Standard are intended to withstand exposure to a 1 h hydrocarbon pool fire.

These tank assemblies are intended for stationary installation and use in accordance with the following:

A National Fire Code of Canada, Part 4;
B CSA B139, Installation Code for Oil Burning Equipment;
C PN1326, Environmental Code of Practice for Aboveground and Underground Storage Tank Systems Containing Petroleum and Allied Petroleum Products;
D The Requirements of the Authority Having Jurisdiction.

Tank assemblies covered by these requirements are fabricated, inspected, and tested for leakage before shipment from the factory as completely assembled units.

These requirements do not address methods of anchoring which may be required to prevent uplift from flooding or movement due to wind or seismic forces.

These requirements do not address either the construction, or attachment means of ladders, stairs, runways, guardrails, platforms, or equipment supports.