Standard Method for Measurement and Calibration of Horizontal Tanks
standard by American Petroleum Institute, 01/01/1965

Recommended Practice for Use and Procedures for Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures (with June 2004 and April 2005 Errata)
standard by American Petroleum Institute, 04/28/2004

Fire Test for Valve with Automatic Backseats, Includes Errata 1 (2008)
standard by American Petroleum Institute, 04/01/1999

Guidelines for the Use of Petroleum Industry-specific International System (SI) Units, Fourth Edition
Handbook / Manual / Guide by American Petroleum Institute, 06/01/2019

Management of Hazards Associated With Location of Process Plant Buildings, 2nd Edition
standard by American Petroleum Institute, 11/01/2003

API Recommended Practice 9B, Application, Care, and Use of Wire Rope for Oilfield Service, Eleventh Edition
standard by American Petroleum Institute, 09/01/2002

Evaporative Loss Measurement, Section 1-Evaporative Loss from Fixed-Roof Tanks, Fourth Edition
Handbook / Manual / Guide by American Petroleum Institute, 10/01/2012

Cathodic Protection of Aboveground Petroleum Storage Tanks
standard by American Petroleum Institute, 12/01/1997

Contractor and Owner Safety Program Implementation, Second Edition
standard by American Petroleum Institute, 08/01/2004

Special-Purpose Couplings for Petroleum, Chemical, and Gas Industry Services
standard by American Petroleum Institute, 10/01/1998