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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 to Calculation of Heater-tube Thickness in Petroleum Refineries, Seventh Edition
Adjunct of the standard published on 1.12.2021
Selected format:Addendum to Calculation of Heater-tube Thickness in Petroleum Refineries, Seventh Edition
Adjunct of the standard published on 1.1.2025
Selected format:Measurement of Noise from Fired Process Heaters (Metric Only)
Standard published on 1.3.1980
Selected format:Heat Recovery Steam Generators for Combustion Turbine Exhaust Applications, Third Edition
Standard published on 1.5.2024
Selected format:Burners for Fired Heaters in General Refinery Services, Fourth Edition, Includes Addendum 1 (2026)
Standard published on 1.7.2024
Selected format:Addendum 1 to Burners for Fired Heaters in General Refinery Services, Fourth Edition
Adjunct of the standard published on 1.8.2026
Selected format:Post-Combustion NOx Control for Fired Equipment in General Refinery Services and Petrochemical Services, Third Edition
Standard published on 31.8.2017
Selected format:Flare Details for Petroleum, Petrochemical, and Natural Gas Industries, Fourth Edition, Includes Addendum 1 (2025) and Addendum 2 (2026)
Standard published on 1.11.2024
Selected format:Addendum 1 to Flare Details for Petroleum, Petrochemical, and Natural Gas Industries, Fourth Edition
Adjunct of the standard published on 1.1.2025
Selected format:Addendum 2 to Flare Details for Petroleum, Petrochemical, and Natural Gas Industries, Fourth Edition
Adjunct of the standard published on 1.6.2026
Selected format:Latest update: 2026-10-25 (Number of items: 2 208 009)
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