API Std 20C
Closed Die Forgings for Use in the Petroleum and Natural Gas Industry, 2nd Edition
standard by American Petroleum Institute, 10/01/2015
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API TR 977
ASTM C704 Test Variability Reduced to Allow Further Optimization of Erosion-resistant Refractories for Critical Oil Refining Applications, First Edition
standard by American Petroleum Institute, 02/01/2018
API Spec 13A Errata
Errata 1 & 2 for Specification for Drilling Fluid Materials, Eighteenth Edition
standard by American Petroleum Institute, 05/01/2015
API Spec 6D Addendum 2
Addenda 2 to Specification for Pipeline Valves, Twenty-third Edition (Identical to ISO 14313:2007)
Amendment by American Petroleum Institute, 08/01/2011
API Spec 7NRV (R2012)
Specification for Drill String Non-return Valves, First Edition
standard by American Petroleum Institute, 07/01/2006
API Std 685
Sealless Centrifugal Pumps for Petroleum, Heavy Duty Chemical, and Gas Industry Services, Includes Errata (2007)
standard by American Petroleum Institute, 10/01/2000
API Std 520, Part 2
Sizing, Selection, and Installation of Pressure-relieving Devices-Part II, Installation, Sixth Edition
standard by American Petroleum Institute, 03/01/2015
API Spec 20A Addendum 1
Addendum to Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in the Petroleum and Natural Gas Industry, 2nd Edition.
Amendment by American Petroleum Institute, 09/01/2018
API Std 599
Metal Plug Valves – Flanged, Threaded and Welding Ends
standard by American Petroleum Institute, 08/01/2002