Recommended Practice for Gaging and Inspection of Casing, Tubing and Pipe Line ThreadsAmendment by American Petroleum Institute, 09/01/2004

Errata for Specifications for Pumping Units, Eighteenth EditionAmendment by American Petroleum Institute, 03/01/2009

Subcritical Cracking of Modern 2 1/4 Cr-1Mo 1/4 V Steel Due to Dissolved Internal Hydrogen and H2 Environment, Research Report, First Editionstandard

Closed Die Forgings for Use in the Petroleum and Natural Gas Industry, First EditionAmendment by American Petroleum Institute, 07/01/2014

Recommended Practice Welding Guidelines for the Chemical, Oil, and Gas Industriesstandard by American Petroleum Institute, 12/01/2009

Centrifugal Fans for Petroleum, Chemical and Gas Industry Services, Third Editionstandard by American Petroleum Institute, 12/01/2014

Errata for Specification for Drilling Fluid Materials, Eighteenth Editionstandard by American Petroleum Institute, 08/01/2014

Errata to Recommended Practice for Analysis, Design, Installation, and Testing of Safety Systems for Subsea Applications, First EditionAmendment by American Petroleum Institute,

Addendum 3 for Specification for Rotary Drill Stem Elements, First Edition -- Identical to ISO 10424-1:2004Amendment by American Petroleum Institute, 04/01/2011

The Technical Basis Document for API RP 941, First Edition, Includes Addendum 1 (2019)standard by American Petroleum Institute, 09/01/2008

Datasheets for Air-Cooled Heat Exchangers for General Refinery Services, Sixth Edition - Adoption of ISO 13706-1:2005Data Sheet by American Petroleum Institute,

Addendum 1 to Materials and Fabrication of 2 1/4Cr-1Mo, 2 1/4Cr-1Mo-1/4V, 3Cr-1Mo, and 3Cr-1Mo-1/4V Steel Heavy Wall Pressure Vessels for High-temperature, High-pressure