Mineral woolBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968 a 7-2
Aluminum-faced mineral fiber panel with bitumen bond
PTB reference data
Original description
Aluminum-faced mineral fiber panel with bitumen bond
Material properties
Thickness: 50 mm
Wall distance: 230 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.47
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.60 | 0.70 | 0.75 | 0.50 | 0.30 | 0.20 |
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Method (354): Measured