Historical
Y32.9-1972
Graphic Symbols for Electrical Wiring and Layout Diagrams Used in Architecture and Building Construction
Content Provider
Institute of Electrical and Electronics Engineers [ieee]
Content Provider
Institute of Electrical and Electronics Engineers [ieee]
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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.