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NFPA 36 provides requirements for fire-safe design and operation of solvent extraction plants, facilities that use hydrocarbon solvents to extract oils from agricultural commodities such as oil-bearing seeds.

Provisions address:

• The extraction process and facility
• Storage and handling of the solvent
• Operations involved in preparing raw material (meal) for processing
• Means for conveying the oil and processed solids from the extraction facility
• Conducting repairs when extraction equipment is operating and when it is shut down and purged of hydrocarbon vapors

Changes to the 2004 edition of NFPA 36 include:

• Better correlation with NFPA 30: Flammable and Combustible Liquids Code regarding transfer of liquids
• Clarification of effluent handling under emergency conditions
• An exception to allow installation of an automatic pressure control valve in the extractor vent line
• Addition of iso-hexane as a recognized solvent for the extraction process, including physical property data
• Format and editorial changes that improve readability and facilitate easier referencing