API MPMS Chapter 9 – Density Determination, Section 2-Standard Test Method for Density or Relative Density of Light Hydrocarbons by Pressure Hydrometer, Second Edition
Handbook / Manual / Guide by American Petroleum Institute, 03/01/2003

Construction, Operation, and Maintenance of Large Diameter Rural Gas Gathering Lines, First Edition
standard by American Petroleum Institute, 03/01/2020

Metering Assemblies: Loading-Rack and Tank-Truck Metering Systems for Non-LPG Products
Handbook / Manual / Guide by American Petroleum Institute, 04/01/1994

Weight Loss Test Method for the Measurement of Rim-Seal Loss Factors for Internal Floating-Roof Tanks
Handbook / Manual / Guide by American Petroleum Institute, 07/01/1998

Errata for Fire Test for End Connections
Amendment by American Petroleum Institute, 12/01/2008

Supplement 1 – Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms – Load and Resistance Factor Design
Amendment by American Petroleum Institute, 02/01/1997

Operation, Maintenance, Surveillance, and Troubleshooting of Gas-lift Installations, Third Edition
standard by American Petroleum Institute, 06/01/2008

API Manual of Petroleum Measurement Standards, Chapter 5 , Metering -Section 7, Testing Protocol for Differential Pressure Flow Measurement Devices, First Edition
Handbook / Manual / Guide by American Petroleum Institute, 02/01/2003

Production Facilities on Offshore Structures – HISTORICAL PUBLICATION
standard by American Petroleum Institute, 01/01/1974

Review of Groundwater Models
standard by American Petroleum Institute, 01/01/1982

Special Purpose Gear Units for Refinery Service, Chemical and Gas Industry Services
standard by American Petroleum Institute, 06/01/1995

Engine Oil Licensing and Certification System
standard by American Petroleum Institute, 12/01/1996