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BS 7443:1991

BS 7443:1991

$86.31

Specification for sound systems for emergency purposes

Published By Publication Date Number of Pages
BSI 1991 14
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Characteristics and methods of test for emergency broadcast sound systems for indoor or outdoor. Includes environmental conditions, marking symbols, installation and safety requirements, and an automatic system for checking correct functioning.

BS 7443:1991
$86.31