UL (safety organization)

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.

单词	Ul listed
释义	Ul listed 英语百科 UL (safety organization) 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.
随便看	cetyl iodide cetylkonium chloride cetyl lactate cetyl myristate Cetyl Octanoate Cetyl palmitate cetyl phenyl ether Cetyl Phosphate cetylphridine chloride cetylpridinium chloride solution Cetylpyridine bromide Cetyl pyridinium Cetylpyridinium cetyl pyridinium bromide cetylpyridinium bromide cetylpyridinium bromide precipitation Cetyl pyridinium chloride Cetylpyridinium chloride Cetylpyridinium Chloride Buccal Tablets Cetylpyridinium Chloride Gargle cetylpyridinium chlorid solution Cetylpyridium cetyl pyridium chloride Cetyl Pyridiumium Chloride Cetylpyridnium Chloride Gargle

Ul listed

UL (safety organization)