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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.
S-N Fatigue Design Guidelines and Test Data for Low-alloy Steel Bolts
Standard published on 1.3.2022
Selected format:Manual of Petroleum Measurement Standards Chapter 22.1 General Guidelines for Developing Testing Protocols for Devices Used in the Measurement of Hydrocarbon Fluids
Standard published on 1.2.2022
Selected format:Manual of Petroleum Measurement Standards Chapter 22—Testing Protocol Section 2—Differential Pressure Flow Measurement Devices
Standard published on 1.2.2022
Selected format:Testing Protocol for Flare Gas Metering
Standard published on 1.8.2015
Selected format:Manual of Petroleum Measurement Standards, Chapter 22.4 Testing Protocol for Pressure, Differential Pressure, and Temperature Measuring Devices
Standard published on 1.11.2022
Selected format:Manual of Petroleum Measurement Standards Chapter 22.6 Testing Protocol for Gas Chromatographs
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
Standard published on 1.1.2023
Selected format:Repairing Hazardous Liquid Pipelines
Standard published on 1.9.2015
Selected format:Safe Hot Tapping Practices in the Petroleum and Petrochemical Industries
Standard published on 1.3.2020
Selected format:Preparing Tank Bottoms for Hot Work
Standard published on 1.4.2022
Selected format:Latest update: 2025-07-25 (Number of items: 2 209 786)
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