Specification for Drill String Non-return Valves, First Edition, Includes Addendum 1 (2019)standard by American Petroleum Institute, 07/01/2006

Datasheets for API Std 685Data Sheet by American Petroleum Institute, 02/01/2011

Datasheets for API Std 612Data Sheet by American Petroleum Institute, 2014

Addendum 1 to Specification for Rotary Drill Stem Elements, First Edition -- Identical to ISO 10424-1:2004Amendment by American Petroleum Institute, 03/01/2007

Specification for Wellhead and Christmas Tree Equipment, 8th Editionstandard by American Petroleum Institute, 01/01/1971

Specification for Verification Test of Wellhead Surface Safety Valves and Underwater Safety Valves for Offshore Service(includes Errata dated December 1996)standard by American

Specification for Vertical and Horizontal Emulsion Treaters, Fifth Editionstandard by American Petroleum Institute, 10/01/2008

Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, Includes Errata 1 (2017)standard by American Petroleum Institute, 04/01/2017

Specification for Casing and Tubingstandard by American Petroleum Institute, 04/01/2002

Errata for Specifications for Pumping Units, Eighteenth EditionAmendment by American Petroleum Institute, 07/01/2009

SCADA Security, First Editionstandard by American Petroleum Institute, 09/01/2004

Plate Heat Exchangers for General Refinery Services - Part 2 - Brazed Alumninum Plate-fin Heat Exchangers First Edition - ISO Adoption from