Page 19 - ALLOY DSG for Designer 2025

DSG The sound transmission-loss measurements of the double glazing panel

Stimulus Response the airborne sound transmission-loss
(TL) for each individual 1/3 octave
brad center frequency and STC rating
of the test panel
Test panel : Double glazing panel
Test panel size : 304 x 244 cm.
Temperature : 26 oc
Relative humidity : 40%

NVH/3100005228/2019-20/741

Table 1 and Figure 2: Valuse and plot for Sound Transmission Loss of Alloy 105x30 DSG partition system with 11.52 mm thick laminated
glass + 75 mm air gap + 10 mm thick toughened glass (Size-2.37 m x 2.37 m) at one third octave frequencies

One Third Sound 90
Octave Transmission STDEV +Alloy 105x30DSG partitiong system with 11.52 mm thick laminated toughened glass
Frequency, Hz Loss, dB +75 mm air gap + 10 mm thick toughened glass (Size-2.37 m x 2.37 m)
80
100 31.7 0.7
125 35.0 0.3
160 34.6 0.7 70
200 34.2 0.7
250 35.9 0.6 60
315 40.0 0.9
400 43.8 0.6 50
500 46.9 0.2
630 48.4 0.3 Sound Transmission Loss, dB
800 49.8 0.3 40
1000 49.7 0.1
1250 42.8 0.4 30
1600 43.2 0.3 STC=47 db
2000 47.1 0.3 20 Rw (C; Ctr)=47(-1;-5)dB
2500 51.3 0.6
3150 53.3 0.5
10
4000 56.9 0.1
5000 61.4 0.5
6300 64.3 0.3 0
8000 65.2 0.5 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 6300 8000
STC 47 -
One Third Octave Frequency, Hz
Rw (C; Ctr) 47(-1;-5) -

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