Sound and Vibration Standards

BS 7443
Sound Systems for Emergency Purposes


Standard Number : BS 7443:1991
 
Title : Specification for sound systems for emergency purposes
 
Status : Superseded, Withdrawn
 
Publication Date : 28 June 1991
 
Confirm Date : 15 February 1997
 
Withdrawn Date : 15 January 2001
 
Replaced By : BS EN 60849:1998, IEC 60849:1998
 
International Relationships : IEC 60849:1989 Modified
 
Amended By : AMD7675
 
Draft Superseded By : 87/23520 DC

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