Half Price Standard Code

Downhole Perforating Tools, First Edition
standard by American Petroleum Institute, 05/01/2022

Datasheets for API Std 546
Data Sheet by American Petroleum Institute, 05/01/2022

Gate, Globe, and Check Valves for Sizes DN 100 (NPS 4) and Smaller for the Petroleum and Natural Gas Industries, Eleventh Edition
standard by American Petroleum Institute, 05/01/2022

Specification for Fiberglass Reinforced Plastic Tanks, Fifth Edition
standard by American Petroleum Institute, 05/01/2022

Specification for Line Pipe, Thirty-second Edition
standard by American Petroleum Institute, 03/01/1982

Specification for Rotating Control Devices
standard by American Petroleum Institute, 06/01/2022

Addendum 3 to Specification for Wellhead and Tree Equipment, Twenty-First Edition
Amendment by American Petroleum Institute, 08/01/2022

Safe Access/Egress Involving Floating Roofs of Storage Tanks in Petroleum Service, Fourth Edition
standard by American Petroleum Institute, 07/01/2022

Specification for Line Pipe, Thirty-fourth Edition
standard by American Petroleum Institute, 05/31/1984

Recommended Practice for Guarding of Pumping Units, Fourth Edition
standard by American Petroleum Institute, 07/01/2022