FLAMEBAR B.W.11 Fire Duct has also been tested by
the Loss Prevention Council, in accordance with
BS 476 Part 7 (1987) for surface spread of flame in
accordance with the Flame Spread Classification given
in the Standard.
FLAMEBAR B.W.11 Fire Duct has also been tested by
the Loss Prevention Council to BS 476 Part 6 (1989)
for fire propagation, confirming that the product can
be defined as a Class ‘O’ Material in accordance with
the Building Regulations 1991.
FLAMEBAR B.W.11 Fire Duct has also been tested by
L.U.L. to BS 6853 and satisfied the Fire Safety Code of
Practice requirements for smoke emission and toxic
fume emission.
FLAMEBAR B.W.11 Fire Duct has the U.S.A.
Underwriters Laboratory UL Classification for up to 4
Hr. Fire & Smoke Ductwork.
FLAMEBAR B.W.11 has been tested by Underwriters
Laboratory in the USA to determine compliance with
NFPA 90A (Installation of Air Conditioning and
Ventilating Systems) for flame spread and smoke
development with the following results: