CAN/ULC-S669-14 Standard for Internal Retrofit Systems for Underground Tanks for Flammable and Combustible Liquids

National Standard of Canada. The Standards Council of Canada. Underwriters Laboratories of Canada (ULC). This First Edition. Approved by October 2014. 36 p. This Standard provides minimum requirements for nonmetallic internal retrofit systems intended for field installation in underground tanks for the storage of flammable and combustible liquids, such as:
A. Petroleum products, including petroleum hydrocarbon fuels with low bio-blends per specifications and similar flammable or combustible liquid petroleum derivatives, such as fuel components (cetane, hexane, heptane), and oils (lubricating, hydraulic, machine);
B. Oxygenated fuel blends, including all ²petroleum products² liquids; plus petroleum hydrocarbon fuels with low-biofuels blends;
C. Oxygenates, including all petroleum product and ²oxygenated fuel blends² liquids; plus pure/ denatured or highest oxygenated blend stocks for use in mixing of dispensed lower fuel-blends and components, such as biodiesel and ethanol; and
D. Other flammable and combustible liquids that can be demonstrated to be compatible with the internal retrofit system materials.