UL 60079-29-2
Explosive Atmospheres - Part 29-2: Gas Detectors - Selection, Installation, Use and Maintenance of Detectors for Flammable Gases and Oxygen
standard by Underwriters Laboratories, 10/15/2018
UL Subject 448D
Outline of Investigation for Fire Pump, Driver and Controller Assembly Rating Compatibility (Outline 9/27/2017)
standard by Underwriters Laboratories, 09/27/2017