MetalHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 169
Value from the PTB table, not verified
Hunter Douglas Luxalon 185 U aluminum panel with mineral fiber
Luxalon 185 U
PTB reference data
Original description
Hunter Douglas Luxalon 185 U aluminum panel with mineral fiber
Material properties
Manufacturer: Hunter Douglas
Thickness: 0 in
Wall distance: 7.9 in
Density: 55 kg/m³
Backing: 1 in mineral fiber blanket
Surface: stove-enameled
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.60
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.55 | 0.80 | 0.65 | 0.55 | 0.40 | 0.40 |
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Value from the PTB table, not verified
NRC: 0.60 (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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mineralwolldichte 55 kg / m³ · 200 mm · Deckenpaneele | 0.60 | 0.43 | 0.36 | 0.81 | 0.87 | 0.82 | 0.75 | 0.74 | 0.61 | 0.58 | 0.66 | 0.53 | 0.46 | 0.40 | 0.39 | 0.37 | 0.37 | 0.36 | 0.40 |
Measured values as a table (1 measurement)
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