Addendum to Side-pocket Mandrels, Second EditionAmendment by American Petroleum Institute, 10/01/2021

Liquid Ring Vacuum Pumps and Compressors for Petroleum, Chemical, and Gas Industry Services, 2nd Editionstandard by American Petroleum Institute, 07/01/2021

Datasheets for use with Std 671, Fifth EditionData Sheet by American Petroleum Institute, 09/01/2021

Pipeline Facility Construction Inspection, First Editionstandard by American Petroleum Institute, 10/01/2021

Metering Assemblies: Loading-Rack and Tank-Truck Metering Systems, First EditionHandbook / Manual / Guide by American Petroleum Institute, 07/01/2021

Safe Operation of Hydrofluoric Acid Alkylation Units, Fifth Editionstandard by American Petroleum Institute, 08/01/2021

Specification for Line Pipe, Fifteenth Editionstandard by American Petroleum Institute, 03/01/1956

Addendum to Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Eighth EditionAmendment by American Petroleum Institute, 07/01/2021

MPMS Chapter 4.6: Pulse InterpolationHandbook / Manual / Guide by American Petroleum Institute, 10/01/2021

Errata 9 to Specification for Pipelineand Piping Valves, Twenty-Fourth EditionAmendment by American Petroleum Institute, 07/28/2021

testData Sheet by American Petroleum Institute,

Errata to Pipeline Control Systems CybersecurityAmendment by American Petroleum Institute, 08/01/2021