URH150KIT | l/s | 15 | 20 | 25 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
LpA | | | | | 15 | 21 | 27 | 32 | 36 | | |
?Ptot | | | | | 38 | 59 | 85 | 116 | 152 | | |
dP_t | | | | | 176 | 160 | 155 | 147 | | | |
LpA - Measured sound pressure level reduced thanks to an absorption surace of 10m?, dB(A) red 10m? - sab
?Ptot - Total Pressure, Pa
dP_t - Maximum Value of total pressure drop (Pa) for an A-weighted sound pressure level (LpA) of 25 dBA