Historical
UL 325 Ed. 5-2002
Standard for Door, Drapery, Gate, Louver, and Window Operators and Systems
Content Provider
Underwriters Laboratories [ul]
Content Provider
Underwriters Laboratories [ul]
As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.