Division 5 Products for use in ventilation systems (excluding smoke and heat exhaust ventilation)

United Kingdom

Applies to	ventilation ducts
Standard(s)	EN 13501-3; EN 1366-1
Classification:
EI	15	20	30	45	60	90	120	180	240
E			30		60
Notes	The classification is completed by ‘(i → o)’, ‘(o → i)’, or ‘(i ↔ o)’ to indicate whether the element has been tested and fulfils the requirements from the inside or outside only or both. In addition, the symbols ‘v_e’ and/or ‘h_o’ indicate the suitability for vertical and/or horizontal use. The addition of the symbol ‘S’ indicates the satisfaction of an extra restriction on leakage.

Applies to	fire dampers
Standard(s)	EN 13501-3; EN 1366-2
Classification:
EI	15	20	30	45	60	90	120	180	240
E			30		60	90	120
Notes	The classification is completed by ‘(i → o)’, ‘(o → i)’, or ‘(i ↔ o)’ to indicate whether the element has been tested and fulfils the requirements from the inside or outside only or both. In addition, the symbolts ‘v_e’ and/or ‘h_o’ indicate the suitability for vertical and/or horizontal use. The addition of the symbol ‘S’ indicates the satisfaction of an extra restriction on leakage.