API Bull 11L2 (R1999) Catalog of Analog Computer Dynamometer Cards standard by American Petroleum Institute, 12/01/1969
API 11AX Supplement 1 Supplement 1 to Specification for Subsurface Sucker Rod Pumps and Fittings, Fifth Edition Amendment by American Petroleum Institute, 04/01/1968
API RP 940 [ Withdrawn ] Steel Deterioration in Hydrogen: A Report on Corrosion Research, Seventh Edition standard by American Petroleum Institute, 11/16/1967
API RP 31 [ Withdrawn ] Recommended Practice and Standard Form for Electrical Logs - WITHDRAWN - No Replacement standard by American Petroleum Institute, 01/01/1967
API Std 2554 (R2012) Measurement and Calibration of Tank Cars standard by American Petroleum Institute, 10/01/1966
API Std 2555 (R2014) Liquid Calibration of Tanks standard by American Petroleum Institute, 09/01/1966
API 2521 Use of Pressure-Vacuum Vent Valves for Atmospheric Loss standard by American Petroleum Institute, 09/01/1966
API 11AX Specification for Subsurface Sucker Rod Pumps and Fittings, Fifth Edition standard by American Petroleum Institute, 03/01/1966
API Std 2552 (R2018) Measurement and Calibration of Spheres and Spheroids standard by American Petroleum Institute, 01/01/1966
API 44 [ Withdrawn ] Sampling Petroleum Reservoir Fluids - WITHDRAWN - No Replacement standard by American Petroleum Institute, 01/01/1966
API 620-1966 [ Withdrawn ] Design and Construction of Large, Welded, Low-Pressure Storage Tanks - 1966 Edition - Includes 1968 Supplement - WITHDRAWN standard by American Petroleum Institute, 01/01/1966
API STD 2550 Method for Measurement and Calibration of Upright Cylindrical Tanks, 1st Edition standard by American Petroleum Institute, 10/01/1965