The need for plant oil extraction is increasing, and often the extraction process itself creates hazardous conditions due to flammable solvents — including hydrocarbons — being released during processing. To help increase safety, we developed requirements and a certification program for equipment used in the plant oil extraction process. These requirements help manufacturers design and manufacture new processing equipment according to a consistent set of criteria and thereby avoid delays in the building permit process.
UL offers safety certification of plant oil extraction equipment, including extractors, prefabricated booths/pods, preparatory equipment and post-processing equipment. This equipment can be for installation in an unclassified area, or for installation in or involving Class I, Division 1 or Class I, Division 2 hazardous (classified) locations, depending on the product technology and intended use. Plant oil extraction equipment is evaluated to the requirements of UL 1389, Outline of Investigation for Plant Oil Extraction Equipment.
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