Page 31 - ALLOY Partitioning Systems

The airborne sound transmission-loss (TL) The airborne sound transmission-loss (TL)
for each individual 1/3 octave band center for and STC rating of the test panel
frequency and STC rating of the test panel

Test panel : Double glazing panel 100 mm.
Test panel size : 304x244 cm.
Temperature : 26 C
O
Relative humidity : 40%

Frequency (Hz) TL (dB) Transmission-loss (TL) for and STC rating
70
125 33
ALLOY double glazing panel Measured Data
160 29 60 STC = 43 Reference Contour
200 35
250 41 50
315 39 40
400 42 TL (db)
500 43 30
630 47
20
800 48
1000 46 10
1250 41
1600 43 0 125 160 200 250 315 400 500 630 800 1k 1.25k 1.6k 2k 2.5k 3.15k 4k
2000 50
One-third octave band center frequency (Hz)
2500 55
3150 57

4000 59

STC 43
8 dB
25 dB

ALLOY 31