UL

UL is the Underwriters Laboratories.

UL 181 is the Underwriters Laboratories document titled “Standard for Factory-Made Air Ducts and Air Connectors,” 2017.

UL 181A is the Underwriters Laboratories document titled “Standard Closure Systems for Use With Rigid Air Ducts,” 2017.

UL 181B is the Underwriters Laboratories document titled “Standard Closure Systems for Use With Flexible Air Ducts and Air Connectors,” 2017.

UL 723 is the Underwriters Laboratories document titled “Standard for Test for Surface Burning Characteristics,” 2017.

UL 727 is the Underwriters Laboratories document titled “Standard for Oil-Fired Central Furnaces,” 2006.UL 731 is the Underwriters Laboratories document titled “Standard for Oil-Fired Unit Heaters,” 2012.

UL 1077 is the Underwriters Laboratories document titled “Standard for Supplementary Protectors for Use in Electrical Equipment”, 2015.

UL 1574 is the Underwriters Laboratories document entitled "Track Lighting Systems," 2016.

UL 1598 is the Underwriters Laboratories document titled “Luminaires,” 2012.

UL 2108 is the Underwriters Laboratories document titled “Standard for Low Voltage Lighting Systems,” 2017.

UL 8750 is the Underwriters Laboratories document titled “Standards for Light Emitting Diode (LED) Equipment for Use in Lighting Products,” 2018.