Historical
UL 1389 Ed. 1-2017
Outline of Investigation for Plant Extraction Units - Published Date: November 17, 2017
This first issue of the Outline of Investigation for Plant Extraction Units, UL 1389, covers pneumatically operated plant extraction units, 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.
Underwriters Laboratories [ul]