UL 991-04 Standard for door, drapery, gate, louver, and window operators and systems
Publication Year
2004
Document Status
Current
Abstract
Applicable to controls that employ solid-state devices, intended for specified safety-related protective functions.
Document History
Revised June 09, 2010.
Publisher Information
Underwriters Laboratories
Established in 1894 as the Underwriters' Electrical Bureau, UL is a global safety consulting and certification company, approved to perform safety testing by the U.S. federal agency of Occupational Safety and Health Administration.
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