General Purpose Gear Units for Petroleum, Chemical and Gas Industry Services
standard by American Petroleum Institute, 07/01/1997

Drill Pipe, Second Edition, Includes Errata 1 (2020)
standard by American Petroleum Institute, 05/01/2020

Methanol Vehicle Emissions
standard by American Petroleum Institute, 12/01/1990

Errata to Metering: General Considerations for Measurement by Meters
Handbook / Manual / Guide by American Petroleum Institute, 06/12/2008

Standard Practice for Sampling and Handling of Fuels for Volatility Measurement, Fourth Edition
Handbook / Manual / Guide by American Petroleum Institute, 12/01/2017

Water Calibration of Volumetric Provers
Handbook / Manual / Guide by American Petroleum Institute, 08/01/1984

Monitoring Near Refineries for Airborne Chemicals on the SARA Title III Section 313 List Volume IV: Sampling and Analytical Protocols for Selected SARA Title III Chemicals in Airborne Emissions
standard by American Petroleum Institute, 12/01/1988

A PIDX Implementation Guide for EDI Gas Flow User Group
standard by American Petroleum Institute, 07/01/1993

Evaporative Loss Measurement: Documentation File for API Manual of Petroleum Measurement Standards Chapter 19.5 – Atmospheric Hydrocarbon Emissions from Marine Vessel Transfer Operations, First Edition
Handbook / Manual / Guide by American Petroleum Institute, 09/01/2009

Odor Threshold Studies Performed with Gasoline and Gasoline Combined with MTBE, ETBE and TAME
standard by American Petroleum Institute, 01/01/1994

Allocation Measurement of Oil and Natural Gas: Allocation Measurement, First Edition, Includes Addenda 1 (2013) and 2 (2016)
Handbook / Manual / Guide by American Petroleum Institute, 08/01/1993

API MPMS Chapter 10-Sediment and Water Section 6-Standard Test Method for Water and Sediment in Fuel Oils by the Centrifuge Method (Laboratory Procedure), Fifth Edition
Handbook / Manual / Guide by American Petroleum Institute, 08/01/2013