Many products are tested and evaluated by Underwriters Laboratories (UL).
Testing is done to determine if a product meets safety standards established by regulations, organizations, manufacturers, and UL. The products that pass such testing may be labeled as UL Listed or UL Recognized. The labels affixed to these products, communicating this recognition, must also be UL Recognized.
UL Recognized labels must pass testing as outlined in the ANSI/UL969 Standard. Some of the testing requirements may include weathering legibility, defacement, chemical exposure, moisture exposure, aging, adhesion, and abrasion. Once approved, the inks and materials used in that specific label construction combination are granted a UL File number.
There are several different categories depending on the type of label (PGDQ2, PGJI2, PGGU2, PGIS2, PGDQ8, PGJI8, PGGU8, etc.).
UL labels are typically found in these markets and on these products:
Markets:
- IT
- Appliances
- Cable and wire
- Electronic equipment
- Electrical components
- Equipment used in hazardous areas
- Fire suppression/protection equipment
- Outdoor power equipment
Products:
- Heaters
- Furnaces
- Sprinkler systems
- Electrical appliances
- Bullet-resistant glass
- Computer equipment
- Smoke detectors/CO2 detectors
- Lawn mowers
Marking and Labeling Systems – Labels Bearing Safety-related Information
Recognized Component Marking & Labeling Systems are label constructions that have been submitted to UL for evaluation in accordance with prescribed permanence of marking performance requirements so they can be used to display required information on UL end-use products. Most UL certified products are required to be permanently marked with specific safety-related information such as warnings, cautionary markings, installation instructions, electrical ratings, or other information. UL’s Component Recognition Program provides a convenient way for a UL end-use product manufacturer to acquire labels that meet the permanence of marking requirements applicable to their product.
Products Recognized under the label category code numbers PGDQ2, PGJI2, and PGGU2 are tested in accordance with the test methods in UL 969, “Standard for Marking and Labeling Systems.” Each Recognized label product is considered suitable for use under specific Conditions of Acceptability. These Conditions of Acceptability include the surfaces to which the label may be applied, temperature ratings, and additional exposure conditions. The Conditions of Acceptability may also include print color limitations, label size limitations, and special use applications. The differences between the label categories are explained in our UL Product Brochure. Click on the link to read more!
