API RP 621
Recommended Practice for Reconditioning of Metallic Gate, Globe, and Check Valves
standard by American Petroleum Institute, 03/01/2001
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API Spec 6D Errata
Errata 1 to Specification for Pipeline Valves, Twenty-third Edition (Identical to ISO 14313:2007)
Amendment by American Petroleum Institute, 06/01/2008
API Std 676 Datasheets
Datasheets for Positive Displacement Pumps – Rotary
Data Sheet by American Petroleum Institute, 11/01/2009
API RP 7HU1 Errata
Errata for Safe Use of 2-inch Hammer Unions for Oilfield Applications, First Edition
Amendment by American Petroleum Institute, 02/01/2014
API TR 941-A Addendum 1
Addendum to The Technical Basis Document for API RP 941, First Edition
Amendment by American Petroleum Institute, 06/01/2019
API TR 1149
Pipeline Variable Uncertainties and Their Effects on Leak Detectability, Second Edition
standard by American Petroleum Institute, 09/01/2015
API Std 609
Butterfly Valves: Double Flanged, Lug- and Wafer-Type
standard by American Petroleum Institute, 05/01/2004
API RP 7G Addendum 2
Addendum 2 to Recommended Practice for Drill Stem Design and Operation Limits
Amendment by American Petroleum Institute, 09/01/2009
API Std 650 Errata – Chinese
Errata to Chinese Translation of API Std 650 Welded Tanks for Oil Storage, Twelfth Edition
Amendment by American Petroleum Institute, 10/01/2014
API Spec Q1
Specification for Quality Management System Requirements for Manufacturing Organizations for the Petroleum and Natural Gas Industry, Ninth Edition, Includes Errata (February 2014), Errata 2 (March 2014), Addendum 1 (June 2016) and 2 (June 2018) (Addendums Available in English Only)
standard by American Petroleum Institute, 06/01/2013