BS ISO 21927-4:2019
Current
The latest, up-to-date edition.
Smoke and heat control systems Natural smoke and heat exhaust ventilators. Design, requirements and installation
Hardcopy , PDF
English
19-06-2019
This document applies to the design and installation of natural smoke and heat exhaust ventilators (NSHEVs) for spaces from which smoke is extracted vertically by thermal buoyancy via the roof in the case of single-storey buildings and via the uppermost storey in the case of multi-storey buildings.
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