ACOUSTILUX
ACOUSTICAL DATA
TEST RESULTS
Reverberation chamber test have been conducted by the CSIRO Division of building Research according to Australian Standard 1045 and an extract of the organisation's reports (test certificate AC 103) is tabled below . A copy of the certificate is available on request.
SAMPLE 1
6mm Versilux perfororated with 4.5mm (nominal) holes at 20mm centres diamond pattern mounted in exposed grid suspension system --- panel size 1200 x 600 (nominal). 50mm fibreglass building batt loose laid behind panel and 350mm air space to the ceiling of reverberation chamber (Corresponding to design CP 3).
SAMPLE 2
As Sample 1 but with 4.5mm holes at 12.5mm centres square pattern (Corresponding to design CP 1)
SAMPLE 3
Sandwich panel of 50mm fibreglass building batt between two panels of 6mm Versilux perforated as in Sample 1
SAMPLE 4
As in Sample 3 but back panel 6mm unperforated Versilux
 
Hz Sample 1 Sample 2 Sample 3
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
NRC
.50
.47
.64
.59
.53
.61
.47
.54
.64
.60
.60
.56
.54
.47
.38
.33
.30
.28
.54
.41
.45
.54
.64
.54
.61
.49
.56
.68
.67
.68
.68
.68
.65
.58
.52
.48
.42
.61
.19
.34
.41
.57
.80
.93
1.11
.94
.79
.71
.72
.68
.51
.37
.28
.24
.24
.21
 

 

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