DS DS/EN 14591-1/AC
DS DSEN 14591-1AC 2006-FEB-03 Exploson preventon and protecton n underground mnes - Protectve systems - Part 1 2-bar exploson proof ventlaton structure
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This document applies to air shutter frames and air doors for ventilation structures which are to remain functional after the passage of explosions with overpressures of up to 2 bar.