Visual Signal Appliances for General Signaling Use
standard by Underwriters Laboratories, 06/22/2016
Medical Electrical Equipment, Part 1: General Requirements for Safety
standard by Underwriters Laboratories, 04/25/2003
Explosive Atmospheres – Part 31: Equipment Dust Ignition Protection by Enclosure "t"
standard by Underwriters Laboratories, 06/12/2015
Standard for Liquid-Level Indicating Gauges for Oil Burner Fuels
standard by Underwriters Laboratories, 10/05/2012
Explosive atmospheres – Part 5: Equipment protection by powder filling "q"
standard by Underwriters Laboratories, 04/29/2016