6.8.2 Procedure
On completion of the process cycle remove the load (an endoscope or surrogate device) and position the
endoscope so that there is a continuous fall to the lumen orifice being tested. Discharge medical grade
compressed air at a pressure of 105 kPa to 120 kPa through each channel in turn with the distal end 50 mm to
100 mm above, and normal to a sheet of coloured (e. g. blue or green) crepe paper.
Tests on endoscopes shall be made on all channels with the air flow from both the umbilical side and the
control valve.
Examine the paper for dampness shown by dark spots on the paper.