Explosive atmospheres – Part 0: Equipment – General requirements
standard by Underwriters Laboratories, 03/26/2019
Hand-Held Motor-Operated Electric Tools – Safety – Part 2-9: Particular Requirements for Tappers
standard by Underwriters Laboratories, 03/26/2004
Household and Similar Electrical Appliances – Safety – Part 2-79; Particular Requirements for High Pressure Cleaners and Steam Cleaners
standard by Underwriters Laboratories, 01/14/2016