General-purpose Form-wound Squirrel Cage Induction Motors-250 Horsepower and Larger, First Edition
standard by American Petroleum Institute, 01/01/2005

Fired Heaters for General Refinery Services
standard by American Petroleum Institute, 09/01/1995

Fired Heaters for General Refinery Service, Fourth Edition
standard by American Petroleum Institute, 08/01/2007

Fired Heaters for General Refinery Service, Fifth Edition
standard by American Petroleum Institute, 02/01/2016

Check Valves: Flanged, Lug, Wafer and Butt-welding, 7th Edition
standard by American Petroleum Institute, 09/01/2010

Check Valves: Flanged, Lug, Wafer and Butt-welding, 6th Edition
standard by American Petroleum Institute, 09/01/2004

Valve Inspection and Testing
standard by American Petroleum Institute, 05/01/2004

Valve Inspection and Testing, Ninth Edition
standard by American Petroleum Institute, 09/01/2009

Valve Inspection and Testing, Tenth Edition
standard by American Petroleum Institute, 10/01/2016

Metal Plug Valves-Flanged, Threaded and Welding Ends, Sixth Edition
standard by American Petroleum Institute, 10/01/2007