These requirements cover pneumatically operated plant oil extraction equipment@ with a maximum capacity of 60 gallons (227 L)@ used for production of plant oils as indicated in the instruction manual provided with each unit. The extraction equipment uses butane or LP-Gas to extract the plant oils. These products are intended for installation in Class I@ Division 1 locations. The requirements in this outline do not cover the physiological or other attributes or effects that may result from the use of this equipment.
UL SUBJECT 1389-2018 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)