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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.
Measurement and Calibration of Spheres and Spheroids
Standard published on 1.1.1966
Selected format:Measurement and Calibration of Tank Cars
Standard published on 1.10.1966
Selected format:Liquid Calibration of Tanks
Standard published on 1.9.1966
Selected format:Correcting Gauge Tables for Incrustation
Standard published on 1.8.1993
Selected format:Wind Tunnel Testing of External Floating-Roof Storage Tanks
Standard published on 1.6.1993
Selected format:Reconciliation of Liquid Pipeline Quantities
Standard published on 1.12.2003
Selected format:State of the Art Multiphase Flow Metering, First Edition
Standard published on 1.8.2004
Selected format:API Technical Report 2567, Evaporative Loss from Storage Tank Floating Roof Landings
Standard published on 1.4.2005
Selected format:Evaporative Loss from the Cleaning of Storage Tanks, First Edition
Standard published on 1.11.2007
Selected format:Evaporative Loss from Closed-vent Internal Floating-roof Storage Tanks
Standard published on 1.8.2008
Selected format:Latest update: 2025-12-24 (Number of items: 2 253 093)
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