Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 92
Value from the PTB table, not verified
Rockfon Dekor acoustic panel, pressed mineral fiber
Rockfon acoustic panel Dekor – Dekor
PTB reference data
Original description
Rockfon Dekor acoustic panel, pressed mineral fiber
Material properties
Manufacturer: Deutsche Rockwool Mineralwoll GmbH & Co. OHG
Thickness: 0.5 in
Wall distance: 7.9 in
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.55
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.30 | 0.50 | 0.55 | 0.55 | 0.60 | 0.65 |
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Value from the PTB table, not verified
NRC: 0.55 (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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12 mm · 326 kg / m³ · 200 mm · white genadelt | 0.55 | 0.20 | 0.31 | 0.33 | 0.42 | 0.54 | 0.56 | 0.52 | 0.57 | 0.52 | 0.53 | 0.53 | 0.60 | 0.61 | 0.64 | 0.59 | 0.59 | 0.63 | 0.69 | 0.71 |
Measured values as a table (1 measurement)
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