API Spec 12J pdf download Specification for Oil and Gas Separators 1 Scope1.1 General This specfication covers minimum requirements for the design, fabrication, and shop testing of oil-field type oil andgas separators and/or oil-gas-water separators used in the production of oil and/or gas, and usually located but notlimited to some point on the producing flowline between the wellhead and pipeline.Separators...