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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.
Specification for Fire Test for Check Valves
Standard published on 15.2.1995
Selected format:Specification for End Closures, Connectors, and Swivels, Includes Errata 1 (2008)
Selected format:Heat Treatment and Testing of Carbon, Micro-alloyed, and Low-alloy Steel Wrought and Cast Components, Third Edition
Standard published on 1.3.2023
Selected format:Testing of Oilfield Elastomers, Second Edition
Standard published on 1.10.2022
Selected format:Testing of Oilfield Elastomers (A Tutorial)
Standard published on 1.2.1992
Selected format:Metallic Material Limits for API Equipment Used in High Temperature Applications, Third Edition
Standard published on 1.7.2022
Selected format:Referenced Standards for Committee 6, Standardization of Valves and Wellhead Equipment
Standard published on 1.7.1990
Selected format:Guidelines for Design and Manufacture of Surface Wellhead Running, Retrieving and Testing Tools, Clean-out Tools and Wear Bushings, First Edition
Standard published on 1.2.2020
Selected format:Design Calculations for Pressure-containing Equipment, Second Edition
Standard published on 1.2.2019
Selected format:Rotary Drill Stem Elements, Second Edition, Includes Errata 1 (2023), Errata 2 (2025), and Addendum 1 (2025)
Standard published on 1.2.2023
Selected format:Latest update: 2026-03-13 (Number of items: 2 266 261)
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