Inspection of Pressure-relieving Devices, Third Editionstandard by American Petroleum Institute, 11/01/2009

Welded Tanks for Oil Storage, 5th Editionstandard by American Petroleum Institute, 07/01/1973

Design and Construction of Liquefied Petroleum Gas Installations (LPG)standard by American Petroleum Institute, 05/01/2001

Specification for Shop Welded Tanks for Storage of Production Liquids, Includes Errata (2007)standard by American Petroleum Institute, 11/01/1994

Process Analyzers, Second Editionstandard by American Petroleum Institute, 11/01/2001

Care and Handling of Sucker Rods, Includes 1991 Supplementstandard by American Petroleum Institute, 10/01/1989

Bolted Bonnet Steel Gate Valves for Petroleum and Natural Gas Industries - Modified National Adoption of ISO 10434:1998standard by American Petroleum Institute,

Addendum to API Standard 521, Pressure-relieving and Depressuring Systems, Fifth EditionAmendment by American Petroleum Institute, 05/01/2008

Addendum 1 to Recommended Practice for Setting, Maintenance, Inspection, Operation and Repair of Tanks in Production Service, Fifth EditionAmendment by American Petroleum

Measurement of Proppants Used in Hydraulic Fracturing and Gravel-packing Operations, Second Editionstandard by American Petroleum Institute, 08/01/2018

Specification for Wellhead and Christmas Tree Equipment, 12th Editionstandard by American Petroleum Institute, 01/01/1979

Recommended Practice for the Design, Construction, Operation, and Maintenance of Offshore Hydrocarbon Pipelines (Limit State Design), Fourth Edition, Includes Errata (May 2011)standard