BS 5852 (complete furniture)
Laboratory
TEST
FOR THE IGNITABILITY OF COMPLETE
FURNITURE ITEMS WITH
THE METHODS ACCORDING TO BS
5852
Principle
of the test. A
complete item of furniture is subjected to ignition tests with the
ignition source:
- within the seating area;
- at floor level outside the seating area adjacent to a vertical surface or beneath an overhang;
- at floor level underneath the test specimen.
Where
doubt exists as to which is the most vulnerable test zone, all such
positions
shall be tested. Furniture containing loose cushions shall be tested
with the loose cushions in the normal use position. In
each of these tests the most vulnerable zones are tested. The
zones are first tested using a smouldering cigarette and then either
flaming
ignition sources of progressive intensity or a single specified
flaming
source.
Stand
for testing the ignitability of complete furniture items
For
furniture tip-up
seats; in
addition to the tests carried out for the reduced-seat system (lower
position), tests must be carried out in an arrangement with the
raised seat.
Deliberate
ignition. If
an item of furniture is required to be resistant to deliberate
ignition by small flaming sources representing hand-held matches or
cigarette lighters
applied to the underneath of a test specimen, then butane flame
ignition
sources 1 and/or 2 and/or 3 shall be applied to the most vulnerable
zone.
Evaluation
of results. If
the ignition sources no progressive smouldering ignition or flaming
ignition of any element of the complete
furniture items
is observed, the result of the test of this system shall be
considered positive.
Test
samples.
Two complete seats
Applying
research methods: UK
requirements