What is UL?
UL LLC is a global safety certification company headquartered in Northbrook, Illinois. It maintains offices in 46 countries. Established in 1894 as the Underwriters’ Electrical Bureau (a bureau of the National Board of Fire Underwriters),it was known throughout the 20th century as Underwriters Laboratories and participated in the safety analysis of many of that century’s new technologies.
UL is one of several companies approved to perform safety testing by the U.S. federal agency Occupational Safety and Health Administration (OSHA). OSHA maintains a list of approved testing laboratories, which are known as Nationally Recognized Testing Laboratories.
Sustainability Standards
- UL 106, Standard for Sustainability for Luminaires (under development)
- UL 110, Standard for Sustainability for Mobile Phones
Standards for Electrical and Electronic Products
- UL50, Enclosures for Electrical Equipment
- UL50E, Enclosures for Electrical Equipment, Environmental Considerations
- UL153, Portable Electric Lamps
- UL197, Commercial Electrical Cooking Appliances
- UL796, Printed-Wiring Boards
- UL1026, Electric Household Cooking and Food Serving Appliances
- UL1492, Audio/Video Products and Accessories
- UL1598, Luminaires
- UL1642, Lithium Batteries
- UL1995, Heating and Cooling Equipment
- UL2267 Standard for Safety – Fuel Cell Power Systems for Installation in Industrial Electric Trucks
- UL6500, Audio/Video and Musical Instrument Apparatuses for Household, Commercial and Similar General Uses
- UL60065, Audio, Video and Similar Electronic Apparatuses: Safety Requirements
- UL60335-1, Household and Similar Electrical Appliances, Part 1: General Requirements
- UL60335-2-24, Household and Similar Electrical Appliances, Part 2: Particular Requirements for Motor Compressors
- UL60335-2-3, Household and Similar Electrical Appliances, Part 2: Particular Requirements for Electric Irons
- UL60335-2-34, Household and Similar Electrical Appliances, Part 2: Particular Requirements for Motor Compressors
- UL60335-2-8, Household and Similar Electrical Appliances, Part 2: Particular Requirements for Shavers, Hair Clippers and Similar Appliances
- UL60950, Information Technology Equipment
- UL60950-1, Information Technology Equipment – Safety, Part 1: General Requirements
- UL60950-21, Information Technology Equipment – Safety, Part 21: Remote Power Feeding
- UL60950-22, Information Technology Equipment – Safety, Part 22: Equipment to be Installed Outdoors
- UL60950-23, Information Technology Equipment – Safety, Part 23: Large Data Storage Equipment
Life Safety Standards
- UL217, Single- and Multiple- Station Smoke Alarms
- UL268, Smoke Detectors for Fire Protective Signaling Systems
- UL268A, Smoke Detectors for Duct Application
- UL1626, Residential Sprinklers for Fire Protection Service
- UL1971, Signaling Devices for the Hearing Impaired
Standards for Building Products
- UL10A, Tin-Clad Fire Doors
- UL20, General-Use Snap Switches
- UL486E, Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors
- UL1256, Fire Test of Roof/Deck Constructions
Standards for Industrial Control Equipment
- UL508, Industrial Control Equipment
- UL508A, Industrial Control Panels
- UL508C, Power Conversion Equipment
- UL61800-5-1, Adjustable Speed Electrical Power Drive Systems
Standards for Plastic Materials
- UL94, Tests for Flammability of Plastic Materials for Parts in Devices and Appliances
- UL746A, Polymeric Materials: Short-Term Property Evaluations
- UL746B, Polymeric Materials: Long-Term Property Evaluations
- UL746C, Polymeric Materials: Use in Electrical Equipment Evaluations
- UL746D, Polymeric Materials: Fabricated Parts
- UL746E, Polymeric Materials: Industrial Laminates, Filament Wound Tubing, Vulcanized Fiber and Materials Used in Printed-Wiring Boards
- UL746F, Polymeric Materials: Flexible Dielectric Film Materials for Use in Printed-Wiring Boards and Flexible Materials Interconnect Constructions
Standards for Wire and Cable
- UL62, Flexible Cords and Cables
- UL758, Appliance Wiring Material (AWM)[9]
- UL817, Cord Sets and Power Supply Cords
- UL2556, Wire and Cable Test Methods
Standards for Canada developed by ULC Standards, a member of the UL family of companies
- CAN/ULC-S101-07, Standard Methods for Fire Endurance Tests of Building Construction and Materials
- CAN/ULC-S102-10, Standard Methods of Test for Surface-Burning Characteristics of Building Materials and Assemblies
- CAN/ULC-S102.2-10, Standard Methods of Test for Surface-Burning Characteristics of Flooring, Floor Coverings, and Miscellaneous Materials and Assemblies
- CAN/ULC-S104-10, Standard Methods for Fire Tests of Door Assemblies
- CAN/ULC-S107-10, Standard Methods for Fire Tests of Roof Coverings
- CAN/ULC-S303-M91 (R1999), Standard Methods for Local Burglar Alarm Units and Systems[10]
Photovoltaic
- UL 1703, Photovoltaic Flat-Plate Modules
- UL 1741, Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources
- UL 2703, Rack Mounting Systems and Clamping Devices for Flat-Plate Photovoltaic Modules and Panels