Under these operation conditions the fan pattern obtained shall be 170 mm +- 50 mm in diameter on the surface exposed to deterioration, at a distance of 380 mm +- 10 mm from the nozzle.
Under these operation conditions the fan pattern obtained shall be 170 mm +- 50 mm in diameter on the surface exposed to deterioration, at a distance of 380 mm +- 10 mm from the nozzle.