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 62841-2-9

Electric Motor-Operated Hand-Held Tools, Transportable Tools and Lawn and Garden Machinery – Safety – Part 2-9: Particular Requirements for Hand-Held Tappers and Threaders
standard by Underwriters Laboratories, 02/26/2016