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API (American Petroleum Institute) is a leader in the development of petroleum and petrochemical equipment and operating standards covering topics that range from drill bits to environmental protection. These embrace proven, sound engineering and operating practices and safe, interchangeable equipment and materials. Many have been incorporated into state and federal regulations and adopted by ISO for worldwide acceptance.
Integrity Operating Windows, Second Edition
Standard published on 1.12.2021
Selected format:Pressure Equipment Integrity Incident Investigation, Second Edition
Standard published on 1.4.2021
Selected format:Guidance for the Development of Ultrasonic Examiner Qualification Programs, First Edition
Standard published on 1.5.2021
Selected format:Errata 1 to Guidance for the Development of Ultrasonic Examiner Qualification Programs, First Edition
Adjunct of the standard published on 1.10.2024
Selected format:Recommended Practice for Source Inspection and Quality Surveillance of Fixed Equipment, First Edition
Standard published on 1.7.2019
Selected format:Fire Test for Evaluation of Valve Stem Packing and Piping Flange Gaskets, Third Edition
Standard published on 1.9.2025
Selected format:Recommended Practice for Well Control Operations, Second Edition
Standard published on 1.5.2006
Selected format:Steel Line Blanks
Standard published on 1.3.1985
Selected format:Process Valve Qualification Procedure, Sixth Edition
Standard published on 1.4.2019
Selected format:Check Valves: Flanged, Lug, Wafer, and Butt-welding, Ninth Edition
Standard published on 1.2.2022
Selected format:Latest update: 2026-03-15 (Number of items: 2 266 660)
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