Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: RAMSETE
Rockwool, thickness 50 mm, 70 kg/m³
PTB reference data
Original description
Rockwool, thickness 50 mm, 70 kg/m³
Material properties
Thickness: 50 mm
Density: 70 kg/m³
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.73
Frequency values
αp nach ISO 11654
| f (Hz) | 63 | 125 | 250 | 500 | 1k | 2k |
|---|---|---|---|---|---|---|
| αp | 0.00 | 0.20 | 0.65 | 0.90 | 0.90 | 0.85 |
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Method (354): Measured