MEASURE OF THE SPEED OF THE ENVIRONMENT AIR Standard EN 14175-4 § 5.8

MISURA DELLA VELOCITA' DELL’ARIA AMBIENTE

PRINCIPLE OF THE TEST
Check the aeraulic flow around the hood that could be the source of perturbations penalizing the effectiveness such as: doors, windows, air compensation system, heating, cooling.

TEST METHOD
At a height of 1.40 meters from the floor and 40 cm from the center of the up and down opening, measure the air flow with an omnidirectional anemometer for 60 seconds.

RESULTS
The result expressed in m / s must not exceed 0,2 m / s.