ULC-S643-00

1. SCOPe 1.1 These requirements cover single and double wall cylindrical horizontal steel non-pressure tanks that are used for the aboveground storage of flammable and combustible liquids with a relative density not greater than 1.0, such as gasoline, fuel oil, or similar products. 1.2 Section 3 of these requirements covers single wall tanks. 1.3 Section 4 of these requirements covers double wall tanks. 1.4 These requirements cover tanks which are fabricated, inspected and tested for leakage before shipment from the factory as completely assembled vessels. 1.5 These requirements do not cover tanks of capacities greater than 5000 L. 1.6 These requirements cover aboveground tanks provided with integral supports to allow for relocation as required by their intended service. These tanks are for installation at locations such as farms, construction sites, demolition sites, exploration sites, forestry operations and similar locations. 1.7 Tanks fabricated in accordance with this Standard are not intended for the transportation of fuel nor are they to be transported while containing fuel.