Mineral woolBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: M. Heckl, H.A. Müller: Taschenbuch der Technischen Akustik, Springer 1994
Mineral fiber panel 20 Rayl/cm, 50 mm thick, 50 mm wall distance, plywood facing
PTB reference data
Original description
Mineral fiber panel 20 Rayl/cm, 50 mm thick, 50 mm wall distance, plywood facing
Material properties
Thickness: 50 mm
Wall distance: 50 mm
Surface: 6 mm plywood
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.27
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.40 | 0.55 | 0.30 | 0.20 | 0.10 | 0.10 |
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Method (354): Measured