'July seems to be a very productive time of the year for Colorado-based HAL Extraction, at least in terms of obtaining very rare Underwriters Laboratories (UL) certification for its patented booth equipment.
In July 2018, the company received the UL 1389 certification in the United States – the standard for plant oil extraction equipment for installation and use in both ordinary (unclassified) and hazardous (classified) locations. It was the first company to do so and indeed worked alongside UL to establish such a certification.
“HAL Extraction helped UL develop the UL 1389 standard by mentoring them through the safety challenges associated with plant oil extraction processes,” said Josh Gladfelter, chief engineer of the Golden, CO-based company.
Two years later, in the same month, the same UL certification was granted for the company in Canada. While the UL 1389 certification is the same in both countries, there are differences in adopted standards between the two, even though there is significant overlap...'