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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.
Brushless Synchronous Machines - 500 kVA and Larger, Fourth Edition
Standard published on 1.5.2022
Selected format:General-purpose Form-wound Squirrel Cage Induction Motors-185 kW (250 hp) through 2240 kW (3000 hp), Second Edition
Standard published on 30.4.2017
Selected format:Conducting Oil and Gas Producing and Gas Processing Plant Operations Involving Hydrogen Sulfide
Standard published on 15.2.1995
Selected format:Manual on Installation of Refinery Instruments and Control Systems; Part II-Process Stream Analyzers; Section 5-Oxygen Analyzers
Standard published on 1.8.1983
Selected format:Process Measurement, Second Edition
Standard published on 1.2.2016
Selected format:Signal Processing, Transmission, and Installation, Second Edition
Standard published on 1.1.2025
Selected format:Refinery Valves and Accessories for Control and Safety Instrumented Systems, Third Edition
Standard published on 1.5.2026
Selected format:Process Control Systems - Functions and Functional Specification Development, Third Edition
Standard published on 1.5.2021
Selected format:Process Control Systems - Process Control System Design, Second Edition
Standard published on 1.8.2023
Selected format:Process Control Systems - Project Execution and Process Control System Ownership, Second Edition
Standard published on 1.1.2021
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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