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BS 7346-1:1990
M00000246
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BS 7346-1:1990 Components for smoke and heat control systems. Specification for natural smoke and heat exhaust ventilators
standard by BSI Group, 07/31/1990
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Requirements and associated test methods for ventilators installed in buildings to automatically provide openings for the release of the products of combustion in the event of a fire.Replaced by BS EN 12101-2:2003 but remains current.