Category API Standards

Scope, measurement criteria, and operational compliance for NORM handling in oil and gas production. API Publication 4644, originally published in 1997 and widely referenced in its scanned form, remains the foundational industry guidance for the identification, assessment, and management of…

A Comprehensive Guide to the Assessment and Mitigation of Vapor Intrusion Risks in Petroleum-Contaminated Sites Scope and Purpose API Publ 4643-1996 provides a standardized methodology for evaluating the potential for vapor intrusion from subsurface petroleum hydrocarbon releases into occupied buildings.…

Principles and Applications of Petroleum Hydrocarbon Fate in the Marine Environment Scope and Purpose of API Publication 4642 (1996) API Publication 4642, formally titled Fate of Spilled Oil in Marine Waters: Where Does It Go? What Does It Do? How…

Evaluating Applicability, Design, and Operation of Air Sparging Systems for Petroleum-Contaminated Sites Scope and Purpose of API Publication 4641 (1996) API Publication 4641, titled “In Situ Air Sparging: Evaluation of Petroleum Industry Sites and Considerations for Applicability, Design, and Operation”…

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Understanding the Regulatory Compliance and Risk Assessment Methodology for Petroleum Hydrocarbons API Publ 4639-1996, titled Regulatory Compliance and Health Risk Assessment of Petroleum Hydrocarbons, was developed by the American Petroleum Institute (API) to provide a consistent, scientifically sound framework for…

Scope, methodology, implementation, and compliance aspects of the API Publication 4638 calculation workbook for fugitive emissions Scope of API Publ 4638 (1996) API Publication 4638 (1996), officially titled Calculation Workbook for Oil and Gas Production Equipment Fugitive Emissions, provides a…

Comprehensive guide to the scope, technical specifications, and quality assurance requirements of the 1995 API environmental method for gasoline-range organics analysis Scope and Field of Application API Publ 4636-1995, issued by the American Petroleum Institute (API), defines an analytical method…

A technical review of the scope, analytical requirements, and compliance considerations for petroleum hydrocarbon characterization Scope and Application API Publication 4637-1996, titled Selective Analysis of Petroleum Hydrocarbons in Groundwater and Soils: A Literature Review and Case Study, provides a comprehensive…

Guidance for Environmental Professionals at RCRA Facilities Scope of API Publication 4635-1996 API Publication 4635-1996, titled Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities, provides a structured framework for evaluating groundwater quality data generated during Resource Conservation and Recovery…