Specification for Wellhead and Christmas Tree Equipment, Nineteenth Edition, Includes Erratas 1-5 (2009), Addendums 1, 2, 3, and 4 (2008)
standard by American Petroleum Institute, 07/01/2004

Hydrostatic Test Water Treatment and Disposal Options for Liquid Pipeline Systems
standard by American Petroleum Institute, 10/01/1998

Rotary-Type Positive Displacement Compressors for Petroleum, Chemical, and Gas Industry Services
standard by American Petroleum Institute, 03/01/1997

Guidelines for Work in Inert Confined Spaces in the Petroleum Industry
standard by American Petroleum Institute, 11/01/1997

Spark Ignition Properties of Hand Tools
standard by American Petroleum Institute, 07/01/1989

Weight Loss Test Method for the Measurement of Deck-Fitting Loss Factors for Internal Floating-Roof Tanks
Handbook / Manual / Guide by American Petroleum Institute, 05/01/1997

Metals Criteria for Land Management of Exploration and Production Wastes: Technical Support Document for API Recommended Guidance Values
standard by American Petroleum Institute, 01/01/1995

Manual of Petroleum Measurement Standards Chapter 9 – Density Determination – Section 3 – Standard Test Method for Density, Relative Density, and API Gravity of Crude Petroleum and Liquid Petroleum Products by Thermohydrometer Method
Handbook / Manual / Guide by American Petroleum Institute, 11/01/2002

Compressibility Factors for Hydrocarbons: 0-90 degrees API Gravity Range
Handbook / Manual / Guide by American Petroleum Institute, 08/01/1984

Marine Measurement, Section 5: Guidelines for Cargo Analysis and Reconciliation of Cargo Quantities, 2nd Edition
Handbook / Manual / Guide by American Petroleum Institute, 11/01/2003