Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA 1968, Tabelle a3.2-4
Mineral fiber panel, bonded, surface-treated, 50 mm, 120 Rayl/cm
PTB reference data
Original description
Mineral fiber panel, bonded, surface-treated, 50 mm, 120 Rayl/cm
Material properties
Thickness: 50 mm
Surface weight: 6.0 kg/m²
Density: 120 kg/m³
Flow resistance: 120 kPa·s/m²
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.96
Frequency values
αp nach ISO 11654
| f (Hz) | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|
| αp | 0.65 | 1.00 | 1.05 | 1.00 | 0.95 |
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Method (354): Measured