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The UL enterprise [4] is a global private safety company headquartered in Northbrook, Illinois, composed of three organizations, UL Research Institutes, UL Standards & Engagement and UL Solutions. Established in 1894, the UL enterprise was founded as the Underwriters' Electrical Bureau (a bureau of the National Board of Fire Underwriters ), [ 5 ...
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.
In North America the suitability of equipment for the specific hazardous area must be tested by a Nationally Recognized Testing Laboratory, such as UL, FM Global, CSA Group, or Intertek (ETL). The label will always list the class, division and may list the group and temperature code.
The EN 54 series of standards covers the following topics and product groups related to fire detection and fire alarm systems: [6] [7] Introduction: the introduction to the series of standards contains a diagram of a fire alarm system as well as numerous definitions of terms that are used in the other parts of the series of standards.
ISO 13849-1 has its origins in the mid 1990s when the European Committee for Standardization (CEN) published EN 954-1, Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design [5] in 1996.
'Standards of Viet Nam'), or the Vietnamese National Standards (Vietnamese: Tiêu chuẩn Quốc gia Việt Nam, lit. 'National Standards of Vietnam'), are the national standards of Vietnam issued by the Vietnam Standard and Quality Institute, part of the Directorate for Standards, Metrology and Quality (STAMEQ). These standards are identified ...
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
This rating is the requirement in data safes and vault structures for protecting digital information on magnetic media or hard drives. Temperatures inside the protected chamber must be held below 125 °F (52 °C) for the time period specified, such as Class 125-2 Hour, with temperatures up to 2,000 °F (1,090 °C) outside the vault.