Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA 1968, Tabelle a4-1
Mineral fiber panel, bonded, sprayed surface
PTB reference data
Original description
Mineral fiber panel, bonded, sprayed surface
Material properties
Thickness: 20 mm
Surface weight: 2.8 kg/m²
Backing: visible surface stabilized and sprayed (flake pattern)
Flow resistance: 90 Rayl
Mounting: spot-bonded to substrate
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.68
Frequency values
αp nach ISO 11654
| f (Hz) | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|
| αp | 0.15 | 0.50 | 0.85 | 0.95 | 0.95 |
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Method (354): Measured