1. SCOPE 1.1 This Standard covers steel contained tank assemblies that are used for
aboveground storage of flammable and combustible liquids such as gasoline, fuel oil, or similar
products with a relative density not greater than 1.0. 1.2 Contained tank assemblies consist of primary tanks contained within steel
containments having capacities of not less than 110% of the capacities of the primary tanks.
The calculation of this capacity includes any part of the primary tank that would be submerged
in the containment. 1.3 The minimum design of the containment shall be such that any leak from a
perforation in the lower half of the primary tank shall be contained. 1.4 This Standard does not cover requirements for accessory devices and
appurtenances such as overfill protection, spill containment and sumps. 1.5 Contained tank assemblies are intended for stationary installation and use in
accordance with the following: A 2005 National Fire Code of Canada, Part 4; and
B CSA-B139, Installation Code for Oil Burning Equipment.
CAN/ULC-S653-2006 history
2006CAN/ULC-S653-2006 STANDARD FOR ABOVEGROUND STEEL CONTAINED TANK ASSEMBLIES FOR FLAMMABLE AND COMBUSTIBLE LIQUIDS