API SPEC 12J : 2008

1 Scope
  1.1 General
  1.2 Compliance
2 Definitions
3 Material
  3.1 ASME Code
  3.2 Selection
  3.3 Corrosion Consideration
4 Design
  4.1 Type, Size, Pressure and Temperature Ratings
  4.2 Process Design and Sizing
  4.3 Design Checklist
  4.4 Sample Calculation
5 Fabrication, Testing, and Painting
  5.1 Fabrication
  5.2 Painting
  5.3 Internal Coating
  5.4 Preparation for Shipment
6 Marking
  6.1 API Nameplate
  6.2 ASME Code Nameplate
  6.3 Stamping
7 Inspection and Rejection
  7.1 ASME Code Inspection
  7.2 Inspection Notice
  7.3 Inspection by Purchaser
  7.4 Rejection
  7.5 Compliance
Annex A (informative) - Process Considerations
Annex B (informative) - Corrosion Guidelines
Annex C (informative) - Design and Sizing Calculations
Annex D (normative) - Separator Sizing Example Calculation
Annex E (informative) - Separator Design Information
Annex F (informative) - Use of the API Monogram by Licensees
Bibliography

Describes minimum requirements for the design, fabrication, and shop testing of oil-field type oil and gas separators and/or oil-gas-water separators used in the production of oil and/or gas, and usually located but not limited to some point on the producing flowline between the wellhead and pipeline.