"REThis Standard covers commercial and industrial plant oil extraction equipment for installation and use in hazardous (classified) locations. Based on the application@ installation is in accordance with the manufacturer's installation instructions and NFPA 70@ ""National Electrical Code"" (NEC)@ the ""International Fire Code"" (IFC)@ NFPA 1@ ""Fire Code@"" and NFPA 58 ??Liquefied Petroleum Gas Code.?? Plant oil extraction equipment includes: a) Preparatory equipment@ such as for trimming@ deseeding@ and drying/curing; b) Extractors@ for removing the oil from cannabis and other plants by the use of butane@ LPG or propane solvents (flammable solvents); c) Extraction booths or pods@ for enclosing/protecting plant oil extraction equipment; and d) Post-processing equipment@ such as vacuum ovens@ rotary evaporators@ and solvent recovery pumps. This equipment@ along with systems involving any combination of this equipment@ is used for extracting oils from cannabis and other similar plants as instructed by the manufacturer. The requirements in this standard do not cover the physiological or other attributes or effects that may result from the use of this equipment. This standard does not apply to equipment involving the following risks of ignition: a) Exothermic reactions@ including self-ignition of dusts. b) Mechanically generated sparks (generated intentionally). c) Flames and hot gases (including hot particles). Note: Equipment is a general term including apparatus@ fittings@ devices@ components@ and the like used as a part of@ or in connection with@ an installation."
UL SUBJECT 1389-2019 history
2019UL SUBJECT 1389-2019 UL Outline of Investigation for Plant Oil Extraction Equipment (Issue 4)
2018UL SUBJECT 1389-2018 UL Outline for Investigation Plant Oil Extraction Equipment (Issue 2)
2017UL SUBJECT 1389-2017 UL Outline for Investigation Plant Extraction Units (Issue 1)