Standard for Aboveground Nonmetallic Tanks for Fuel Oil and Other Combustible Liquids

This Standard covers the minimum requirements for nonmetallic or composite primary tanks, secondary tanks, and open or closed secondary containments from 227 to 2500 L (60 to 660 US gal) primary tank capacity intended primarily for the storage and supply of heating fuel for oil burning equipment, or alternately for the storage of diesel fuels for compression ignition engines and motor oils (new and used) for automotive service stations, in aboveground applications.

Each tank type is permitted to be fabricated in a combination of various shapes (cylindrical, rectangular or obround), orientations (horizontal, vertical) and may have integral options (tank supports or accessories) as covered in this Standard.  These shop-built tanks are completely fabricated, inspected, and tested for leakage before shipment from the factory as completely assembled vessels except for options intended for field assembly in accordance with the manufacturer's instructions.

These tanks are intended for stationary installation. These tanks are not intended for the transportation of fuel, nor are they intended to be transported while containing liquids.

These requirements do not cover storage of waste oils or other combustible liquids with different fire, physical or material compatibility properties with respect to the intended liquids in Clause 1.1 but do cover 100 % biodiesel and biodiesel blends up to 100 %. These requirements do not cover storage of flammable liquids.

These requirements do not cover special evaluations for resistance to hurricanes, tornadoes, earthquakes, floods, fires or other natural disasters; or resistance to vehicle impact.