An untipped cigarette, complying with the following requirements,
is needed:
|
|
length
|
68 mm
approximately;
|
|
|
diameter
|
8 mm
approximately;
|
|
|
mass
|
1 g
nominal;
|
|
|
smouldering
rate
|
12.0 ± 1.5
min/50 mm.
|
The smouldering rate shall be verified, as follows, on one
sample from each batch of 10 cigarettes used.
Mark the cigarette, conditioned as described in 6.1, at 5 mm and 55 mm from the end
to be lit. Light it as described in 8.2.1 and
impale it horizontally in draught-free air on a horizontal wire spike
inserted not more than 13 mm into the unlit end. Record the time taken
to smoulder from the 5 mm mark to the 55 mm mark.