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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.
Temperature Correction for the Volume of NGL and LPG Tables 23E, 24E, 53E, 54E, 59E, and 60E, Second Edition (API 11.2.4 / GPA 8217)
Standard published on 1.6.2019
Selected format:A Simplified Vapor Pressure Correlation for Commercial NGLs, Second Edition, Includes Errata 1 (2023)
Standard published on 1.12.2020
Selected format:Errata 1 to A Simplified Vapor Pressure Correlation for Commercial NGLs, Second Edition
Adjunct of the standard published on 1.10.2023
Selected format:Ethylene Density, Second Edition
Standard published on 1.5.2013
Selected format:Miscellaneous Hydrocarbon Product Properties - Denatured Ethanol Density and Volume Correction Factors, Third Edition
Standard published on 1.5.2019
Selected format:Miscellaneous Hydrocarbon Product Properties - Denatured Ethanol and Gasoline Component Blend Densities and Volume Correction Factors, First Edition, Includes Errata 1 (2025)
Standard published on 1.5.2019
Selected format:Errata 1 to Miscellaneous Hydrocarbon Product Properties - Denatured Ethanol and Gasoline Component Blend Densities and Volume Correction Factors, First Edition
Adjunct of the standard published on 1.10.2025
Selected format:Density of Water and Water Volume Correction Factors for Calibration of Volumetric Provers, Second Edition
Standard published on 1.7.2018
Selected format:Density/Weight/Volume Intraconversion (Parts 1-3), First Edition Includes Errata 1 (2011) and Errata 2 (2025)
Standard published on 1.3.2009
Selected format:Errata to API Manual of Petroleum Measurement Standards Chapter 11.5 (Parts 1 to 3), Densite/Weight/Volume Intraconversion, First Edition (single-user license) (Errata Updated, September 2013)
Adjunct of the standard published on 1.9.2011
Selected format:Latest update: 2026-03-16 (Number of items: 2 266 785)
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