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单词 Ul listed
释义

Ul listed

英语百科

UL (safety organization)

The UL Mark
UL headquarters in Northbrook
Melville, New York location
The Recognized Component Mark (left) on a printed circuit board

UL LLC is an American worldwide safety consulting and 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, most notably the public adoption of electricity and the drafting of safety standards for electrical devices and components.

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