High-pressure High-temperature Design Guidelines, Third Editionstandard by American Petroleum Institute, 07/01/2022

Specification for Line Pipe, Fifth Editionstandard by American Petroleum Institute, 01/01/1934

Addendum to Technical Report on Materials Selection for Bolting, First EditionAmendment by American Petroleum Institute, 05/01/2022

Specification for Valves, Twenty-Fifth Edition, Includes Errata 1 (2021) and Errata 2 (2022)standard by American Petroleum Institute, 11/01/2021

Inspection, Assessment, and Repair of Heavy Wall Reactor Vessels in High-temperature High-pressure Hydrogen Service, First Editionstandard by American Petroleum Institute, 05/01/2022

Use of Duplex Stainless Steels in Hydroprocessing Reactor Effluent Air Coolers (REACs)standard by American Petroleum Institute, 08/01/2022

Standard Practice for Automatic Sampling of Petroleum and Petroleum Products, Sixth EditionHandbook / Manual / Guide by American Petroleum Institute, 09/01/2022

Addendum 1 to Flow-control Devices for Side-pocket Mandrels, Second EditionAmendment by American Petroleum Institute, 06/01/2022

Addendum 3 to Specification for Wellhead and Tree Equipment, Twenty-First EditionAmendment by American Petroleum Institute, 08/01/2022

Specification for Wellhead and Christmas Tree Equipment, Nineteenth Edition, Includes Erratas 1-5 (2009), Addendums 1, 2, 3, and 4 (2008)standard by American

Specification for Line Pipe, Twenty-sixth Edition standard by American Petroleum Institute, 04/01/1971

Specification for Line Pipe, Twenty-seventh Edition standard by American Petroleum Institute, 03/01/1973