Ductwork / Extraction
Ductwork / Extraction: A system of enclosures of any cross sectional shape for the distribution or extraction of air & exhausts.
British & International Standards include (but are not limited to) the following:
BS EN 15780:2011 - Ventilation for buildings. Ductwork. Cleanliness of ventilation systems
BS EN 15727:2010 - Ventilation for buildings. Ducts and ductwork components, leakage classification and testing
BS EN 15287-1:2007+A1:2010 - Chimneys. Design, installation and commissioning of chimneys. Chimneys for non-roomsealed heating appliances
BS 476-24:1987, ISO 6944:1985 - Fire tests on building materials and structures. Method for determination of the fire resistance of ventilation ducts
BS 9999:2008 - Code of practice for fire safety in the design, management and use of buildings