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UL headquarters in Northbrook, Illinois. Underwriters Laboratories Inc. was founded in 1894 by William Henry Merrill.After graduating from the Massachusetts Institute of Technology (MIT) with a degree in electrical engineering in 1889, Merrill went to work as an electrical inspector for the Boston Board of Fire Underwriters. [9]
UL (safety organization), an American worldwide safety consulting and certification company previously known as Underwriters Laboratories; Unia Lewicy a Polish political party; Unilever (stock symbol), a multinational corporation; Upplands Lokaltrafik, a Swedish transport company
English: The Underwriters' Laboratories buildings are of interest historically because they served as the headquarters from 1905 to 1979 of the well-known organization in the United States dedicated to the examination and testing of appliances, devices, machinery and materials in respect to life and fire hazards and accident prevention.
The Underwriters Laboratories' UL 2610 is a comprehensive safety standard that governs the construction, performance, operation, and maintenance of security alarm systems and units for commercial premises, such as mercantile and banking locations. The standard details requirements for a range of alarm systems including central station burglar ...
This experience led him to eventually found the Underwriter's Electrical Bureau in 1894, [2] which later became Underwriters Laboratories in 1903. From 1903 to 1909, he was the Secretary and Treasurer of the National Fire Protection Association, becoming the President of the association from 1910 to 1912. In 1916 he became the first president ...
This page was last edited on 29 August 2012, at 15:49 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
UL 94, the Standard for Safety of Flammability of Plastic Materials for Parts in Devices and Appliances testing, is a plastics flammability standard released by Underwriters Laboratories of the United States. [1] The standard determines the material's tendency to either extinguish or spread the flame once the specimen has been ignited.
The United States Occupational Safety and Health Administration (OSHA) requires that 38 different types of products, devices, assemblies, or systems used in the workplace be "approved" (i.e., tested and certified) by third-party organizations identified as Nationally Recognized Testing Laboratories (NRTLs). As part of OSHA's NRTL Program, the ...