Half Price Standard Code

Addendum 1 to Specifications for Pumping Units, Nineteenth Edition
Amendment by American Petroleum Institute, 04/01/2018

Flanged Steel Pressure-relief Valves, Seventh Edition, Includes Errata 1 (2018)
standard by American Petroleum Institute, 09/01/2017

Addendum 1 to Drilling and Well Servicing Structures, Fourth Edition
Amendment by American Petroleum Institute, 12/01/2016

Packers and Bridge Plugs, Third Edition (ISO 14310:2008, Modified Adoption)
standard by American Petroleum Institute, 04/01/2015

Diverter Equipment Systems, Third Edition, Includes Addendum 1 (2018)
standard by American Petroleum Institute, 08/01/2017

Fire Test for Quarter-turn Valves and Valves Equipped with Nonmetallic Seats, 6th Edition
standard by American Petroleum Institute, 09/01/2010

Errata 3 to Specification for Pipelineand Piping Valves, Twenty-Fourth Edition
Amendment by American Petroleum Institute, 02/01/2015

Addendum 3 to Specification for Line Pipe, Forty-fourth Edition
Amendment by American Petroleum Institute, 07/01/2011

Specification for Casing and Tubing, Tenth Edition, Includes Errata 1 (2018) and Errata 2 (2019)
standard by American Petroleum Institute, 06/01/2018

Use of Duplex Stainless Steels in the Oil Refining Industry, First Edition
standard by American Petroleum Institute, 05/01/2005