Fix the base for the test piece on the circular plate,
and lower the triangular platform to allow the
castors to come into contact with the test piece.
Preset the counter for 25 000 revolutions of the
plate and set the apparatus in motion with the
suction nozzle being operated continuously.
NOTE The duration of the test is approximately 24 h.
At the end of the test, examine the test piece for
appearance change from a distance of
approximately 800 mm at an approximate angle
of 45° and from all directions by slowly rotating the
viewing table. Record any damage caused by
detachment of layers, opening of joints, or crazing.
Ignore any flattening or change in appearance,
e.g. change in gloss.