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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.
Model Form of Offshore Operating Agreement, Second Edition
Standard published on 1.7.1996
Selected format:Recommended Practice for Ultrasonic Evaluation of Pipe Imperfections, Second Edition, Includes Addendum 1 (2009)
Standard published on 1.6.2005
Selected format:Addenndum 1 to Recommended Practice for Ultrasonic Evaluation of Pipe Imperfections, Second Edition
Adjunct of the standard published on 1.4.2009
Selected format:Metering Assemblies - General Considerations, First Edition
Standard published on 1.7.2021
Selected format:Metering Assemblies: Loading-Rack and Tank-Truck Metering Systems, First Edition
Standard published on 1.7.2021
Selected format:Metering Assemblies: Service Station Dispensing Metering Systems
Standard published on 1.7.1994
Selected format:Metering Assemblies - Pipeline and Marine Loading/Unloading Measurement Systems, First Edition
Standard published on 1.7.2021
Selected format:Manual of Petroleum Measurement Standards, Chapter 6-Metering Assemblies, Section 4-Metering Systems for Aviation Fueling Facilities, Second Edition
Standard published on 1.1.2007
Selected format:Metering Assemblies-Lease Automatic Custody Transfer (LACT) Systems, First Edition
Standard published on 1.12.2023
Selected format:Steel Gate Valves - Flanged and Butt-welding Ends, Bolted Bonnets, Fourteenth Edition, Includes Errata 1 (2024)
Standard published on 1.5.2021
Selected format:Latest update: 2026-03-13 (Number of items: 2 266 261)
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