Category API Standards

Comprehensive evaluation of oxygenates as motor fuel components and their impact on performance, emissions, and fuel formulation Scope and Background API Publication 4262, first released in 1990, provides a comprehensive technical assessment of alcohols and ethers as potential fuels and…

| Seal Type | Tank Type | Emission Factor (lb/yr-ft diameter) | Performance Level | |—|—|—|—| | Primary, Mechanical Shoe | External FR | X | Moderate | | Primary, Liquid-mounted Resilient | External FR | X | Good |…

Technical Guide to the API Standard for Reid Vapor Pressure (RVP) Testing API Publication 2558 (1993, reaffirmed 2001) provides a standardized method for measuring the vapor pressure of petroleum products under controlled laboratory conditions. Known as the Reid Vapor Pressure…

A comprehensive review of the publication’s guidelines for buried pipeline design, installation, and operational integrity API Publ 2566-2004, issued by the American Petroleum Institute, provides state-of-the-art guidance for the design, installation, and operation of buried pipelines. As a publication (not…

Understanding the Methodology for Estimating Hydrocarbon Vapor Emissions from Fixed-Roof Storage Tanks Scope and Purpose of API Publication 2514A API Publication 2514A, originally issued in 1981 and reaffirmed in 1987, provides a standardized methodology for estimating hydrocarbon evaporation losses from…

Scope and Purpose API Publication 2517, first issued in 1989 and amended by the 1994 Addendum, provides a standardized methodology for estimating evaporation losses from external floating-roof tanks storing volatile liquids. The document supersedes earlier API bulletins and remains a…

* FAQ: ` Q:…A:… `. | Variable | Symbol | Unit | Description | |—|—|—|—| | Vapor Pressure | P | psia | True vapor pressure of the stock liquid at the storage temperature | | Molecular Weight | M…

Evaluating the Structural Effects of Ovality on Buckling Resistance and Allowable Pressure in Cylindrical Shells 1. Purpose and Scope of API Publ 2524 API Publication 2524, formally titled “Effect of Out-of-Roundness on Pressure Vessels,” was first issued in August 1992…

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A comprehensive overview of the technical scope, fireproofing requirements, water spray systems, and compliance practices for liquefied petroleum gas facilities. Scope and Applicability of API Publication 2510A API Publication 2510A, “Fire-Protection Considerations for the Design and Operation of Liquefied Petroleum…