MetalHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 171
Value from the PTB table, not verified
Hunter Douglas Luxalon 300 A/S metal panels, 15% perforation ratio
Luxalon 300 A, 300S
PTB reference data
Original description
Hunter Douglas Luxalon 300 A/S metal panels, 15% perforation ratio
Material properties
Manufacturer: Hunter Douglas
Thickness: 0 in (aluminum), 0 in (steel)
Perforation: 15%
Hole size: 0.1 in
Backing: 0.8 in mineral fiber
Surface: painted
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.95
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.30 | 0.80 | 1.00 | 1.00 | 1.00 | 0.95 |
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Value from the PTB table, not verified
NRC: 0.95 (derived from ISO 354 lab data)
Measured values as a table (1 measurement)
| Build-up | NRC | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz | 6300 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mineralwolldichte 55 kg / m³ · Deckenpaneele · gelocht | 0.95 | 0.20 | 0.22 | 0.43 | 0.67 | 0.85 | 0.90 | 1.05 | 1.04 | 1.03 | 1.01 | 1.00 | 0.95 | 1.05 | 1.00 | 1.03 | 0.98 | 0.92 | 0.95 | 0.80 |
Measured values as a table (1 measurement)
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