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API - American Petroleum Institute

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The American Petroleum Institute - API - represents more than 400 members involved in the oil and natural gas industry.

Over 900 API standards serve as the basis for API quality programs covering production material and lubricants, and certification programs for storage tanks, pressure vessels, and piping inspectors. API publish recommended practices, research reports, and specifications on pipelines, valves, offshore structures, oil-spill response procedures, environmental protection, exploration, facility management and much more.

The API membership work is organized in

  • the API upstream segment
  • the API downstream segment
  • the API marine segment
  • the API pipeline segment

Popular Titles from API

Some popular titles from API are

  • API Publication 4721
    Analytical Detection and Quantification Limits: Survey of State and Federal Approaches
  • API 526
    Flanged Steel Pressure Relief Valves
  • API 620
    Design and Construction of Large, Welded, Low-Pressure Storage Tanks
  • API RP 1007
    Loading and Unloading of MC 306 / DOT 406 Cargo Tank Motor Vehicles
  • ANSI/API 1104
    Welding of Pipelines and Related Facilities
  • API 650
    Welded Steel Tanks for Oil Storage
  • API 653
    Tank Inspection, Repair, Alteration, and Reconstruction
  • API 5L
    Specification for Line Pipe
    Specification for Wellhead and Christmas Tree Equipment
  • API 5CT
    Specification for Casing and Tubing (U.S. Customary Units)
  • API RP 7G
    Recommended Practice for Drill Stem Design and Operation Limits
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Related Topics

Standard Organizations

National and International organizations producing codes and standards - ANSI, ISO, DIN, BSi and more.

Related Documents

API - Valve Standards

An overview of the American Petroleum Institute - API - valve standards.

API 6D Valves - Pressure Ratings vs. Temperature

Temperature and pressure ratings for valves according API 6D.

API Gravity

API expresses the gravity or density of liquid petroleum products. Online API to Specific Gravity calculator.

Carbon Steel Pipes - Pressure and Temperature Ratings, Metric Units

Pressure (kPa)> and temperature (degC) ratings of ASTM A-106, API 5L and ASTM A-53 Seamless Carbon Steel Pipes - temperatures ranging -29 degC - 450 degC.

Flanges - API vs. ASME/ANSI

API and ASME/ANSI flanges - comparing dimensions and pressure ratings.

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