Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA 1968, Tabelle a4-2
Mineral fiber panel, sprayed, on sub-frame
PTB reference data
Original description
Mineral fiber panel, sprayed, on sub-frame
Material properties
Thickness: 20 mm
Wall distance: 30 mm
Surface weight: 2.8 kg/m²
Surface: visible surface consolidated and sprayed (flake pattern)
Flow resistance: 0.091 kPa·s/m²
Mounting: on simple sub-frame, 500 mm x 500 mm cassettes
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.65
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.35 | 0.80 | 0.90 | 0.90 | 0.85 |
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Method (354): Measured