API Spec 12F-1994 Specification for Shop Welded Tanks for Storage of Production Liquids

American Petroleum Institute (API). Eleventh Edition, November 1, 1994. 30 p. This specification covers material, design, fabrication, and testing requirements for shop-fabricated vertical, cylindrical, aboveground, dosed top. welded steel storage tanks in various standard sizes and capacities for internal pressures approximately atmospheric, not to exceed those listed in Column 2, Table 1.
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.