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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.
Recommended Practice for the Measurement of Viscous Properties of Completion Fluids
Standard published on 1.7.2023
Selected format:Recommended Practice for the Measurement of Viscous Properties of Completion Fluids
Standard published on 1.10.2010
Selected format:Stress Corrosion Cracking of Corrosion Resistant Alloys in Halide Brines Exposed to Acidic Production Gas
Standard published on 1.7.2022
Selected format:Size Measurement of Dry, Granular Drilling Fluid Particulates
Standard published on 1.10.2018
Selected format:Manual of Petroleum Measurement Standards Chapter 14.1 Collecting and Handling of Natural Gas Samples for Analysis by Gas Chromatography
Standard published on 1.9.2022
Selected format:Manual of Petroleum Measurement Standards Chapter 14.10 Natural Gas Fluids Measurement—Measurement of Flow to Flares
Standard published on 1.12.2021
Selected format:Manual of Petroleum Measurement Standards Chapter 14-Natural Gas Fluid Measurement Section 12-Measurement of Gas by Vortex Meters
Standard published on 1.3.2017
Selected format:Manual of Petroleum Measurement Standards Chapter 14.13 Simplified Metering System Design and Performance-based Methodology for Non-custody Gas Measurement
Standard published on 1.10.2022
Selected format:Manual of Petroleum Measurement Standards Chapter 14.14 Venturi Metering of Natural Gas and Other Related Hydrocarbon Fluids
Standard published on 1.3.2023
Selected format:Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids-Concentric, Square-edged Orifice Meters Part 1: General Equations and Uncertainty Guidelines
Standard published on 1.9.2017
Selected format:Latest update: 2025-07-11 (Number of items: 2 208 012)
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