Half Price Standard Code

Specification for Drilling and Production Hoisting Equipment (PSL 1 and PSL 2), Fourth Edition / ISO 13535:2000 (Modified), Petroleum and natural gas industries-Drilling and production equipment-Hoisting equipment, Addendum
Amendment by American Petroleum Institute, 04/15/2005

Design and Construction of Liquefied Petroleum Gas Installations (LPG)
standard by American Petroleum Institute, 05/01/2001

Datasheets for API Std 612
Data Sheet by American Petroleum Institute, 2014

Flaned and Welding-End Steel Wedge-Gate and Plug Valves for Refinery Use
standard by American Petroleum Institute, 01/01/1949

Addendum 1 to Welding of Pipelines and Related Facilities, 21st Edition
Amendment by American Petroleum Institute, 07/01/2014

Shell-and-tube Heat Exchangers, Eighth Edition
standard by American Petroleum Institute, 08/01/2007

Specification for Rotary Drill Stem Elements, Fortieth Edition, March 2006 Addendum
Amendment by American Petroleum Institute, 03/01/2006

Standard for Third Party Network Connectivity, First Edition
standard by American Petroleum Institute, 11/01/2007

Addendum 1 for Specification for Wire Rope
Amendment by American Petroleum Institute,

High-pressure High-temperature Design Guidelines, Second Edition, Includes Errata 1 (2019) and Addendum 1 (2019)
standard by American Petroleum Institute, 03/01/2018