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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.
Addendum 2 to Testing Protocols - General Guidelines for Developing Testing Protocols for Devices Used in the Measurement of Hydrocarbon Fluids, Second Edition
Adjunct of the standard published on 1.2.2022
Selected format:Manual of Petroleum Measurement Standards, Chapter 22-Testing Protocol Section 2-Differential Pressure Flow Measurement Devices, Second Edition
Standard published on 1.4.2017
Selected format:Testing Protocol for Flare Gas Metering, Second Edition
Standard published on 1.11.2025
Selected format:Testing Protocol for Pressure, Differential Pressure, and Temperature Measuring Devices, Second Edition
Standard published on 1.2.2025
Selected format:Testing Protocols—Flow Computational Device, First Edition
Standard published on 1.3.2024
Selected format:Testing Protocol for Gas Chromatographs, First Edition
Standard published on 1.8.2015
Selected format:API Manual of Petroleum Measurement Standards Chapter 22.7, EI HM 77, Testing Protocol for Multiphase Meter, First Edition
Standard published on 1.1.2023
Selected format:Repairing Hazardous Liquid Pipelines, Fifth Edition
Standard published on 1.9.2015
Selected format:API Recommended Practice 2201, Safe Hot Tapping Practices in the Petroleum & Petrochemical Industries, Fifth Edition
Standard published on 1.7.2003
Selected format:Dismantling and Disposing of Steel from Aboveground Leaded Gasoline Storage Tanks
Standard published on 1.1.1991
Selected format:Latest update: 2025-12-24 (Number of items: 2 253 093)
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