TextileHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Sound System Engineering, Don Davis and Carolyn Davis
Mineral or glass wool blanket, covered with open weave fabric
PTB reference data
Original description
Mineral or glass wool blanket, covered with open weave fabric
Material properties
Thickness: 2 inch
Wall distance: 1 inch
Surface: open weave fabric
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.78
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.70 | 0.90 | 0.90 | 0.95 | 0.90 |
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Method (354): Measured