1.1 General
1.1.1 This specification covers material, design, fabrication, and testing requirements for new shop-fabricated vertical, cylindrical, aboveground, welded steel storage tanks in the standard sizes and capacities, and for internal pressures approximately atmospheric, given in Table 1 .
1.1.2 This specification is designed to provide the oil production industry with tanks of adequate safety and reasonable economy for use in the storage of crude petroleum and other liquids commonly handled and stored by the production segment of the industry. This specification is for the convenience of purchasers and manufacturers in ordering and fabricating tanks.
1.1.3 Only tanks built to the requirements stated in this specification may be identified as 1 2F tanks. Tanks built to dimensions other than listed in Table 1 are outside the scope of this specification.
1.1.4 This specification has requirements given in two alternate systems of units. The manufacturer shall comply with the US Customary (USC) units. The SI unit equivalent is provided for convenience.
NOTE Per API document style, SI unit values appear first, followed by their USC equivalents in parentheses.
