8.2.1 Light a cigarette (see 5.2) and draw air through it until
the tip glows brightly. Not more than 8 mm of the cigarette shall
be consumed in this operation.
8.2.2 Place the smouldering cigarette in position
along the junction between the vertical and horizontal test pieces,
allowing at least 50 mm from the nearest side edge, or from any marks
left by any previous test, to the cigarette and simultaneously start
the clock.
8.2.3 Observe the progress of combustion, and
record any evidence of progressive smouldering (see clause 2) or flaming in the interior
and/or cover.
Note:
The detection of smouldering
may be difficult and is made easier if a watch is kept for smoke emerging
at points at a distance from the cigarette. Smoke is most easily viewed
by looking down a rising column by means of a mirror.
8.2.4 If progressive smouldering or flaming of
the upholstery components is observed at any time within a period
of one hour of the placement of the cigarette, extinguish the test
piece and record a fail result for the smouldering cigarette test.
8.2.5 If progressive smouldering or flaming is
not observed within the one hour period, or if the cigarette fails
to smoulder its complete length, repeat the test with a new cigarette
placed in a fresh position not less than 50 mm from any previous test
damage. If progressive smouldering or flaming is not observed in this
retest, or if the cigarette fails to smoulder its complete length,
record a pass result for the smouldering cigarette test unless the
test piece fails the final examination specified in 8.4. Otherwise, extinguish the test
piece and record a fail result.
Note:
This repeat test may be run
concurrently with the first test.