In material testing, a test track of 1.0 m length is placed under stress via a pressurized water jet that strikes the surface of the component part at an angle of 30° and a vertical distance between the surface under test and the centre of the nozzle insert of 10 mm.

The minimum length of the component to be tested should be at least 1.30 m. Three test tracks with a lateral distance of not less than 10 cm are inspected. On these tracks, a set of three cleaning cycles (once back and forth) is carried out at a cleaning velocity of 0.2 m/min. A flushing jet power density of 450 W/mm² is applied.