• The API 12D specification is utilized in the fabrication and erection of field welded tanks for storage of production liquids. In general, this standard is commonly used by upstream petrochemical companies. The API 12D standard is to field erected tanks as API 12F is to shop built tanks. API 12D predetermines tank dimensions, design pressure and vacuums, with accessories and testing requirements. This eliminates the need for further engineering, effectively reducing the cost of each tank.
• This standard covers the design, manufacture and installation of vertical aboveground cylindrical tanks, steel fabricated and welded, with nominal capacities ranging from 79.5 m3 to 1590 m3 (in standard sizes).
